EASA Module 7 : Maintenance Practices Questions - Part 1
EASA Module 7 : Maintenance Practices Question-Answer - Part 1
Which type of extinguisher can be used for electric fire?
a) Water
b) Foam
Ans c) CO2
A fitness for flight is issued for an aircraft after a major modification by
a) the pilot, type rated on that particular aircraft
Ans b) a appropriate licensed aircraft engineer
c) a CAA surveyor or person approved within thev CAA
The materials most commonly soldered in soft soldering are
Ans a) brass and mild steel
b) stainless steel and titanium
c) aluminium and magnesium
To read the transponder coding from an aircrafts transponder you
a) use the code signal and a chart to determine the signal
b) use the output onithe flight deck
Ans c) use a ATC600 test set
The dye penetrant field test kit consists of cans of
a) penetrant, cleaner, developer and a brush
b) penetrant, cleaner and developer
Ans c) spray penetrant, spray cleaner and spray developer
A UNF bolt is indicated by
Ans a) 2-3 rings on the head
b) a triangle on the head
c) green dye
When using a vernier call per with no knife edges to measure the internal diameter of a bush, you
Ans a) add the dimensions of the nibs
b) ignore the dimensions of the nibs
c) subtract the dimensions of the nibs
The liquid applied to a component being checked by magnetic particle inspection is for
Ans a) acting as a transmission medium for the test
b) to prevent corrosion occurring from contact with the probe
c) to prevent scratching of the surface by the probe
Risk assessments should only be carriedout for
a) tasks carried out above the he ght of 6 foot
Ans b) all tasks and processes that are performed
c) tasks using hazardous chemicals
The most appropriate fire extinguisher for an aircraft wheel and brake fire would be
Ans a) dry powder
b) water
c) carbon dioxide
Once a person has been disconnected from the source of an electrical shock the next step should be
a) seek assistance immediately
Ans b) check for breathing start AR if necessary
c) check for pulse start cardiac massage if necessary
Which of the following is the most appropriate filing technique?
a) Even pressure forward and backwards
Ans b) Pressure forwards, relieve pressure backwards
c) Pressure backwards, relieve pressure forwards
Stubborn pins in file teeth should be removed
Ans a) pricking out with sharp point
b) using file card
c) tapping file gently on workbench
A flat chisel being used for aluminum should have a point angle of
Ans a) 30 degrees
b) 65 degrees
c) 55 degrees
A mill file can be used for
a) corners less than 60 degrees
b) general purpose
Ans c) saw sharpening
A rawhide mallet is
a) available with copper inserts
Ans b) used for giving softer blows than boxwood mallet
c) less expensive than bossing mallet
Tension files
a) can be used to cut in one direction only
Ans b) can cut in either direction
c) clog easily
When using low tungsten hacksaw blades it is recommended to use
Ans a) 50 stroke per min
b) 60 strokes per min
c) 40 strokes per min
"Stop Drill" is the process of
a) drilling holes in a metal prior to riveting
b) drilling a rivet head to remove it from the metal
Ans c) drilling holes to stop a crack at the crack ends
The scale on an ohmmeter is
Ans a) cramped at high resistance
b) cramped at low resistance
c) linear
What is undesirable in a good weld?
Ans a) oxides mixed in with the filler material
b) 100% penetration by filler material
c) fusing the edges of materials to be joined
An unauthorised repair has been carried out
a) sign a CRS for the repair
b) apply for it as a modification
Ans c) carryout an approved repair
Where would you find the information on the conditions for weighing the aircraft?
a) Flight Manual in conjunction with the documents associated with the CofA
Ans b) Maintenance Manual
c) Technical Log
A JAR 66 licensed engineer, when signing a CRS for a non-JAR 145 company would need to have
a) maintenance experience for 4 months within the last 24 months
Ans b) maintenance experience for 6 months within the last 24 months
c) an aircraft type refresher in the last 24 months
A National UK licensed engineer, when signing a CRS would need to have
a) maintenance experience for 4 months within the last 24 months
Ans b) maintenance experience for 6 months within the last 24 months
c) an aircraft type refresher in the last 24 months
Silver solder is made from
Ans a) zinc, copper, silver
b) zinc, copper, tin
c) zinc, copper, lead
How do you check a chain for elongation?
Ans a) Lay flat on a table, apply tensile load and measure
b) Hang chain up, check sight line and measure
c) Adjust the end fittings
A windy drill produces power by
Ans a) vane type motor producing torque
b) spur gears in a miniature gearbox
c) bevel gears
A light drive clearance between bolt and hole on a drawing would be
Ans a) 0.0015”
b) 0.0025”
c) 0.005”
What is a good weld?
Ans a) Build up by 1/8” in the middle of the weld
b) Sides sloping to the base metals
c) An oxide coating on the base metals
Previous weighing record are
a) retained for 2 yrs only
b) destroyed after 5 yrs
Ans c) are kept with aircraft records
Which is the preferred method for aluminium alloy alloy?
a) Electroflux
b) Magnaflux
Ans c) Ultrasonic
A composite flap panel has corrosion. What NDT method will you use to detect?
Ans a) High voltage x-ray
b) Low voltage x-ray
c) Coin tap test
Vital point inspections
a) are lifed components
Ans b) are components which involve duplicate inspections
c) are points which require special certifying LAEs
Bonding lead testers are attached with
Ans a) a 60 feet lead is connected to the main earth and a 6 foot test lead is connected to check the resistance between selected points
b) a 6 feet test lead is connected to the main earth and a 60 feet lead is connected to check the resistance between selected points
c) either of the leads can be connected anywhere
Chopped strand mat is a good general purpose mat because
a) it has short fibres
Ans b) it gives equal properties in all directions
c) it is a stiffer than woven cloth
When checking resistance of a cable to the starter motor what test is carried out?
Ans a) Millivolt drop test
b) Safety Ohmeter
c) Time Domain Reflectometer
When checking cable tensions you are looking for
a) artificial feel
Ans b) full and free movement
c) free movement only
Three revolutions of a 40 T.P.l. micrometer will show
Ans a) 0.075 inch
b) 0.03 inch
c) 0.003 inch
If the bearing strength of a metal is greater than the shear strength of the rivet, what will occur?
a) Rivet will show incorrectly installed
b) Rivet will pull through the metal
Ans c) Rivet will joggle
The latest drawing identified by
Ans a) issue number
b) amendment number
c) date
To carry out a continuity test you would use
a) an HT circuit tester
Ans b) a low reading ohmmeter
c) ammeter
On a pre flight check you notice an instrument glass is cracked. You should
Ans a) check MEL
b) tell oncoming captain
c) enter into technical log
Electrical cables installed on aircraft. What is used to indicate a fault?
a) Resistance test
Ans b) Continuity test
c) Bonding test
What is the measure of a d.t.i?
Ans a) 0.020 mm
b) 0.040 mm
c) 0.050 mm
in the CRS, a specific reference is made to
a) AOC
Ans b) ANO
c) CofA
Units of torque are
Ans a) lbs.ft and lbs.in
b) lbs/ft2 and lbs/in2
c) Lbs And Kgs
The value of the insulation resistance of an electric motor compared to its supply leads is
a) greater
Ans b) smaller
c) same
On a Bonding Tester the number of probes on the 60 ft and 6ft leads respectively are
Ans a) 1 and 2
b) 2 and 1
c) 2 and 2
Maximum value of resistance between all isolated parts which may be subjected to appreciable electrostatic charging and the main earth
a) 0.05 ohm
b) 1 ohm
Ans c) 0.5 Megohm or 100 kilohm per sq.ft. of surface area whichever is less
The calibration of a piece of test equipment is suspect. Your actions would be
a) calibrate/rectify immediately
b) note and rectify later
Ans c) remove from service and annotate accordingly
Removal of corrosion from aluminium clad alloy
a) chemically by trichloroethylene
b) mechanically by buffing
Ans c) chemically by sulphuric acid solution
The eddy current method of flaw detection can detect
a) surface flaws only
Ans b) surface flaws and those just beneath the surface
c) sub surface flaws only
With dye penetrant how is the developer applied
Ans a) at a distance of 10 to 12 inches with several passes
b) as an even layer of chalk applied over the area
c) using a tank
How is dye penetrant affected when applying below 15 degrees C?
a) not affected by temperature
Ans b) precipitation affects efficiency
c) warm the work beforehand
When using the dye penetrant method crack detection ,the indications on a short, deep crack are
Ans a) single dots
b) circles
c) long chain
Control methods for galvanic corrosion include
Ans a) joining similar metals and using jointing compounds
b) reducing cyclic stressing and increasing cross sectional area
c) ensuring correct heat treatments and correct alloying
The treatment for stress corrosion is
Ans a) always the replacement of the part
b) the same as for surface corrosion or surface cracks in sheet metal
c) not the same as fatigue corrosion
A deep internal crack in a structural steel member is detected by
a) magnetic flaw method
b) fluorescent penetrant method
Ans c) x-ray or ultrasonic process
Very light corrosion on aluminium alloy can be removed by
a) rubbing with wire wool
b) using Alocrom 1200
Ans c) using a solvent
To remove corrosion on Fe metals use
a) sulphuric acid rust remover
b) selenious acid rust remover
Ans c) phosphoric acid rust remover
The usual manufacturers anti corrosive process to be applied to Fe aircraft parts is
a) anodising
Ans b) cadmium plating
c) metal spraying
The ultrasonic method of crack detection can be used on
a) surface and subsurface defects on ferrous metal only
Ans b) subsurface defects only on all metals
c) surface and subsurface defects on all metals
An intervention defect is one where
a) there is a requirement for the maintenance engineer to intervene
Ans b) the defect occurred because of some previous maintenance action
c) the engineer has the discretion on whether to intervene
Porosity in cast materials
a) only occurs on the surface
b) is only detectable on the surface
Ans c) is detectable as a surface or sub surface defect
When using the fluorescent ink flaw detection method, the component should b inspected using an
a) infrared lamp
Ans b) ultraviolet lamp
c) ordinary lamp and special glasses
When using the dye penetrant method of crack detection should not normally be used at temperatures
a) above 15 degrees C
Ans b) below 0 degrees C
c) above 20 degrees C
When using the dye penetrant method the part should be kept wet with the penetrant for
a) up to one hour
Ans b) 15 minutes
c) 5 minutes
According to ATA 100, a symbol code X on a wiring number denotes
a) a ground circuit
b) a warning circuit
Ans c) AC power
The normal tolerance allowed for a bend in a rod is
Ans a) 1:600
b) 1:400
c) 1:100
The damping force in a meter
Ans a) prevents oscillation of the pointer
b) assists the pointer to move over the scale
c) returns the pointer to zero
In a moving coil meter the deflecting force is provided by
a) hairsprings which move the pointer towards full scale
b) a soft iron permanent magnet
Ans c) a current carrying coil pivoted in a permanent magnet field
The force acting on a meter which returns the pointer to zero is
called the
Ans a) controlling force
b) turning force
c) deflecting force
The forces acting on a meter which moves the pointer over the scale is called
a) the controlling force
b) the turning force
Ans c) the deflecting force
The resistance of an ammeter must be
a) high to create a large volts drop across it
b) low because the ammeter is in parallel with the circuit
Ans c) low to prevent volts drop across it
The resistance of a voltmeter must be
a) low to provide a parallel path for the circuit current
Ans b) high so that little current passes through it
c) low to prevent overloading the circuit
on inspection a bearing is found to have distortion, what action should be taken?
Ans a) Reject bearing
b) Blend out distortion and re-grease bearing
c) No action required. Some distortion is normal
On inspection a bearing is found to show signs of overheating, what action should be taken?
Ans a) Reject bearing
b) clean up bearing and repack with grease
c) No action required. Some overheating is normal
Vapour phase inhibitor should be used
a) when painting an aircraft
Ans b) when reprotecting after corrosion
c) when degreasing a component
If an ammeter reads 0 - 1mA FSD, what would you be required to do to enable it to read 10mA FSD?
a) Place a 9 ohm resistor in series with the meter
b) Place a 9.9 ohm resistor across the coils
Ans c) Place a 5.8 ohm resistor as a shunt in parallel with the meter
What should be done if a tool is found not to be working to its calibrated requirements?
Ans a) It should be removed from service, marked as unserviceable and sent away for overhaul
b) A mechanic should adjust it to restore it to the correct operation
c) It should be placed back into stores and kept in service until the next calibration is due
How do you prevent earth loops forming on screened cables?
a) Do not earth the screen
b) Earth both ends of the screen
Ans c) Earth one end of the screen
When carrying out a bonding test in the presence of an anodic coating, what should you do?
a) Take account of the resistance of the coating
b) Disregard the resistance of the coating
Ans c) Penetrate the coating so a good electrical contact is made
When carrying out soldering to an end termination and a wire, you should tin
Ans a) both the end of the wire and the termination
b) only the end of the wire
c) neither the wire or the termination as tinning is not required
When inspecting an aircraft after a lightning strike, you should observe
a) entry damage
b) entry and exit damage
Ans c) all signs of burning
To detect a fault with magnetic particle flaw detection, the test requires
Ans a) two passes at 90 degrees to each other
b) one pass in any direction
c) two passes in any direction
The substance used in ultrasound inspection is
Ans a) a couplant to allow sound waves to travel
b) a cleaning agent to keep the components clean
c) a developer
Run-out of a rod is measured using
Ans a) DTI, surface plate and V-blacks
b) micrometer and V-blocks
c) vernier and V-blocks
Dye penetrant defects are marked using
Ans a) crayon, unless used in a highly stresses area
b) pencil
c) chalk
How would you mark a defect on an exhaust system?
a) Special zinc/copper tipped marking tool
b) Pencil
Ans c) Chalk
Swaging of a cable end fitting is checked by
Ans a) using a go / no-go gauge on the barrel
b) measuring the length of the barrel before and after swaging
c) looking for cracks on the swage indicating poor swaging
The internal resistance of a voltmeter is
Ans a) high
b) low
c) no more than 0.05 ohms
The internal resistance of an ammeter is
a) high
Ans b) low
c) 1 ohm
For airworthiness purposes, aircraft parts are graded as
Ans a) primary, secondary and tertiary
b) class A, B and C
c) 1, 2 and 3
After working with epoxy resins, how is natural oil returned to the skin?
a) Refatting cream
b) Epoxy removing cream
Ans c) Acetone/lanolin mixture
When crimping wires, the wires should be
Ans a) lightly twisted
b) twisted
c) straight
Why are copper wires used in electrical systems?
a) They do not give off a magnetic field
b) They have high permeability
Ans c) They have a low resistance to current
When crimping wires, the wire should
Ans a) extend 0.8 mm beyond the crimp
b) be flush with the crimp
c) be beneath the crimp
A pressure vessel of thickness 1/16" to 1/8" is being tested with dye penetrant. The penetrant should be left for
a) the same length of time as normal
Ans b) 3 times longer than normal
c) less than normal
A capacitive fuel contents system should be tested with
a) a ratiometer
b) a decade box
Ans c) a wheatstone bridge
This is a diagram of a
a) rheostat
Ans b) potentiometer
c) variable resistor
Continuity of a fibre optic cable is tested with a
a) multimeter
b) light source and optometer
Ans c) calibrated light generator and opto-power meter
A flight control cable is replaced if
a) a wire is 20 % worn
Ans b) single wires are blended together
c) the protective fluid coating is missing
A drill bit of 0.250" would be
a) 6/32 and letter F
b) 7/32 and letter G
Ans c) 8/32 and letter E
Insufficient heat used in soldering will cause
Ans a) a high resistance joint potential
b) the joint to oxidize
c) contamination of the joint
On a patch repair you should use
a) the same rivet spacing as the original structure
Ans b) material one gauge thicker than the original structure
c) only aluminium alloy rivets
When testing hoses you should use
a) a pressure equal to 12" head of water
Ans b) 1.5 x maximum pressure under water
c) 3 x maximum pressure under water
When weighing an aircraft using elastic load cells, the load cells go
a) between top of jack and the aircraft
Ans b) as a single unit or combination of units under the aircraft wheels
c) between undercarriage and aircraft
Needle grease points are used on
a) items with gland seals
b) large pivoted joints
Ans c) small pivoted joints
When using transistorized test equipment, what should the output be?
a) High impedanceAns
Ans b) Low impedance
c) Not affected by impedance
When de-icing an aircraft with pressure de-icing fluid, the sensors on the outside of the aircraft should
a) have their heating switched on
Ans b) be fitted with blanks or bungs
c) not be blanked
If an unauthorized repair is carried out
Ans a) the Cof A is invalidated until an authorized repair has been done
b) the Cof A in not invalidated providing a CRS is issued
c) the aircraft can fly with a Certificate of Fitness for Flight
Rigid pipes are designed with bends to
a) absorb vibration
b) fit to the aircraft structure
Ans c) allow for expansion and contraction due to heat and absorb vibration
On a composite aircraft, large items are bonded
Ans a) by primary bonding leads attached to a cage
b) by use of large copper strips
c) Don't need to be bonded because they are made of an insulating material.
On an ATC transponder transmitting altitude, how do you get the code?
a) Convert it to binary
Ans b) Read off the ATC-600 test set
c) Read off the transponder itself
When fitting a shackle pin , fit with
Ans a) head uppermost
b) a shakeproof washer under the head
c) 0.020" float
Fore and aft limits of the CG
Ans a) are specified by the manufacturer
b) are determined by the licensed engineer after a major check and weighing
c) are determined by the pilot when calculating the loading data
1EF6B22 NMSV What does the B mean
Ans a) Segment letter
b) Circuit function
c) Cable number
in aircraft control cables, when a lock is fitted to the control surface
Ans a) it will prevent the control surface and the control column movement
b)it will not prevent the control surface movement but will lock the
control column
c) it will prevent the control surface movement but not the control
column movement
A white/blue insertion-extraction tool would be used on a cable of
what size?
a) 22
Ans b) 16
c) 10
Which of the following is a preventive process against HIRF?
Ans a) Visual inspections
b) Periodically checking aircraft bonding
c) Monitoring HIRF on the communication system
A C.of A. for export
a) gives authority for the aircraft to fly
Ans b) does not give authority by it self for the aircraft to fly
c) is required before aircraft registration in a foriegn country
The box unit in a Teleflex control run which is not suitable for heavily loaded controls is called
Ans a) Single entry
b) Double entry
c) Straight lead
You find a pipe with a flare end fitting of 74°. What specification has it been manufactured to?
a) S.A.E.
b) A.G.S.
Ans c) A.N.
Neither oil nor grease should be used as a lubricant on couplings or pipelines carrying
a) Nitrogen
b) Kerosene
Ans c) Oxygen
The threads on a stud:
a) are of opposite hand at each end of the plain of portion
b) are continuous throughout its length and there is no plain portion
Ans c) are of the same hand at each end of the plain portion
Ball and roller bearings are made from a combination of low carbon steel and a percentage of
Ans a) Nickel
b) Chromium
c) Nickel chrome
A UNF threaded wire thread insert may be identified
a) by a red painted tang
b) by a black painted tang
Ans c) by an un-painted tang
Which type of extinguisher can be sued for electric fire
a) Water
b) Foam
Ans c) CO2
After solution treatment of aluminium alloy, the effect of immediate refrigeration at a temperature with the rang -15oC to - 20oC is
Ans a) to suspend natural ageing for a limited period
b) to increase the rate of artificial ageing
c) to permanently soften the metal to retard the onset of fatigue
Which of the following NDT techniques cannot be used on a component manufactured from austenitic stainless steel?
a) Penetrant dye
Ans b) Magnetic particle
c) Hot oil and chalk
Aluminium clad alloy sheet should not be polished with mechanical buffing wheels
a) as this will cause large static charges to build up
Ans b) as this may remove the aluminium coating
c) as this may remove the alloy coating
The angle between starts on a double start thread is
a) 120 degrees
b) 90 degrees
Ans c) 180 degrees
What does 18N and contiguous circles on the head of a bolt indicate?
a) 1.8" nominal length 1/2" BSF
Ans b) 1.8" plain shank 1/2" UNF
c) 1.8" threaded portion and plain shank 1/2" UNF
The colour of CO2 type fire extinguisher is
a) red
b) green
Ans c) black
Which type of extinguisher can be used for engine fire?
a) Water
b) BCF
Ans c) CO2
Fire on landing gear brake should be extinguished
a) carbon dioxide extinguisher
b) water extinguisher
Ans c) dry powder extinguisher
Which type of fire extinguishers can be used in the cabin?
a) M.B.
b) C.T.C.
Ans c) water or B.C.F.
A hygrometer is used to
a) check battery electrolyte relative density
b) check battery electrolyte specific gravity
Ans c) take humidity reading
Which type crack will probably cause the most build-up in the magnetic particle indicating medium?
a) shrink
b) grinding
Ans c) fatigue
Identify the parts required to make up a flared-tube fitting?
Ans a) Sleeve and nut
b) Body, sleeve and nut
c) Ferrule and nut
The letter A.F.D. in a circle stamped on a material indicates that it has
a) been annealed fired and doped
Ans b) been anodic flaw detected
c) an across flats diameter bolt
The primary reason for using flux when welding aluminium is to
a) promote better fusion of the base metal at a lower temperature
Ans b) prevent oxides from forming ahead of the weld
c) prevent molten metal from flowing too widely
The oxyacetylene flame for silver soldering should be
a) oxidizing
b) carburising
Ans c) neutral
Which items listed below is the most important consideration when selecting a welding rod?
a) Type of torch
b) Thickness of the metal to be welded only
Ans c) Type and thickness of the metal to be welded
On a coaxial cable, cable impedance is
a) proportional to length
b) inversely proportional to length
Ans c) not effected by length
Where would Zone 324 be found in ATA 100?
Ans a) Tip of horizontal stabiliser
b) Fwd of the wing rear spar
c) Between rear spar of wing and trailing edge of wing
A secondary earth is
Ans a) 18 AWG
b) not less than 0.5mm cross sectional area
c) 22 AWG
On a static leak tester, pressure is released by
Ans a) slowly opening the release knob for 3 minutes
b) an internal balance valve in the tester
c) a bleed valve in the tester
The strength of a riveted joint is determined by
a) pitch and tensile strength of rivet
b) shear strength of rivet and material it is made of
Ans c) shear strength and pitch of rivet
What temperature should the heat gun be set for shrinking heat shrink sleeve?
Ans a) 100 degrees C above rated temperature
b) 100 degrees C below rated temperature
c) At the rated temp
What should be checked before a licensed engineer signs a CRS?
Ans a) That he/she has worked for 6 months on the aircraft type within the previous 2 years
b) That he/she has had continuation training within the previous 2 years
c) That he/she has worked for 4 months on the aircraft type within the previous 2 years
How many primary bonding conductors are required on an engine?
a) 2 on one side
Ans b) 1 on each side
c) 1 only
A 0.625" drill is identified by
a) Letter A
b) Letter E
Ans c) 5/8
HIRF interference occurs when
a) in use on mid frequencies
Ans b) in use on all frequencies
c) in use on low frequencies
Solder can be used to join
a) similar metals only
b) only copper based metals
Ans c) some dissimilar metals
Bonding value for secondary structure is
Ans a) 1 ohm
b) 0.5 ohms
c) 0.05 ohms
A fuel calibration test set when used to check an aircraft with half a fuel load is connected
a) to gauge with fuel level capacitance
Ans b) to gauge with fuel level in series
c) to gauge with fuel level in parallel
To measure AC with a moving coil, it
a) is rectified and measures peak value
Ans b) is rectified and measures average value
c) can be directly connected
The benefit of a ketts saw is
a) it allows a single handed operation due to less torque
Ans b) it can cut thicker metal than is usually required for a repair
c) it comes in two versions - pneumatic and electric
'E' on a wire, under ATA 100 is a
a) phase indication
Ans b) system ID code
c) cable size
The drill bit cutting angle for titanium is
a) 90-100 degrees
Ans b) 105-120 degrees
c) 120-140 degrees
The flare angle on an AGS pipe is
a) 45 degrees
Ans b) 37 degrees
c) 90 degrees
A gap in a fire wall can be plugged by
a) a plastic bung
b) an aluminium plate
Ans c) a fireproof bung or bush
Prior to aluminium alloy bonding we
Ans a) acid etch
b) solvent wipe
c) alkaline etch
Diffusion bonding gives
a) high strength and stiffness
Ans b) high strength and ductility
c) high strength and brittleness
Glass reinforced panels are bonded by
Ans a) special conductive paint
b) bonding strips to conductors
c) wire mesh
Calibration of aircraft hydro static weighing equipment is
a) carried out every time before an aircraft is weighed and adjusted by operator
Ans b) done once a year
c) not required
On an aircraft which has had a heavy landing on the lower wing you may see
a) sagging
b) hogging
Ans c) wrinkling
A chain is removed by
a) spring clips
b) removing chain links on an endless chain
Ans c) nuts and bolts
An aircraft should be cleared of snow using
Ans a) hot fluid
b) cold fluid
c) hot air
When weighing an aircraft
Ans a) the aircraft is jacked
b) only he main wheels are weighed
c) a load cell should be placed under each set of wheels
Vital points inspections are carried out
a) on an A check
Ans b) after the area is disturbed
c) on a C check
Rubber components should be stored
a) in warm and humid conditions
b) in a well lit room
Ans c) in a cool dark area
When an aircraft is pulled out of soft ground
Ans a) the equipment should be attached to the main gear
b) the equipment should be attached to the nose gear
c) the equipment should be attached to the tail cone
An aircraft should not be refuelled when
a) the APU is running
Ans b) with radar and electrical equipment operating
c) navigation and landing lights are operating
To check the structure of a wing, use
a) low voltage X-rays
Ans b) high voltage X-rays
c) ultrasonic NDT
When drilling light alloy
a) no lubricant is required
b) lard oil should be used
Ans c) use the specified lubricant
When countersinking rivet holes in a material
a) a plain countersink bit should be used
b) the rivet head should stand 1/32" proud of the surface
Ans c) a special countersinking bit with a pad to stop drilling too deep should be used
The picture above shows a torque wrench with an extension. To apply a torque
of 350 lb.in. the reading on the dial should be
a) 350 lb.in.
Ans b) 280 lb.in.
c) 245 lb.in.
The gears in a pistol windy drill are
Ans a) spur gears
b) gears in a gear box
c) gerotor type gears
When using dye penetrant NDT on a tank, the penetrant should be applied
Ans a) on the inside, with developer on the outside
b) on the outside, with developer on the outside
c) on the inside, with developer on the inside
Reaming light alloy tube is done with
Ans a) the same oil and lubrication as used for cutting
b) hard base lubricant
c) no lubricant
What is a countersink tool used for?
a) To adjust the angle of a countersink
b) To prevent damage to pipework in a blind hole
Ans c) To adjust the depth of a countersink
Storage of components to prevent corrosion is usually in the form of
a) a plastic box
Ans b) silica gel
c) grease proof paper
When mooring helicopters
a) one blade should be tied to the tail rotor
b) one blade should be tied to the structure
Ans c) each blade should be capped and tied to the mooring points
To prevent wet arc tracking
a) cables should not be stretched
b) cable grips should be tight
Ans c) ensure hot stamp printing is controlled
Dye penetrant kits should be stored
Ans a) out of sunlight in a dry place
b) in direct sunlight to keep it dry
c) in a dark damp cupboard
Aircraft measurements aft of the datum are
Ans a) positive
b) negative
c) either positive or negative
When splicing a cable with a soldered joint, the operation is finished when
a) the solder has melted
Ans b) the solder and insulation have formed
c) the solder sleeve disappears
When manufacturing a connector the unused holes are
a) filled with connector blanks
b) filled with connectors
Ans c) covered with blanks
There is ice and snow on a helicopter blade. You
a) wipe off excess snow and leave ice
Ans b) remove all traces of ice and snow
c) leave a layer of ice
Wrinkling of an aircraft skin will
a) weaken the skin
b) increase drag on the aircraft
Ans c) cause rivets to pull
Marking out on stainless steel can be clarified by application of
a) ammonia
Ans b) copper sulphate
c) sal ammoniac
Tolerance is the
Ans a) allowable error due to faulty workmanship and tools
b) difference between worn and new tools
c) the difference between a hole and shaft size
A press fit requires
a) the hole to be expanded by heat
Ans b) some sort of driving force
c) the shaft to be shrunk by cooling
When drawing lines on aluminium alloy sheet prior to bending
Ans a) a thin coat of zinc chromate primer should be used, ready for pencil lines
b) a scriber should be used
c) a wax pencil should be used
You have removed a bolt from a critical bolted joint for inspection and rectification. What action should you take prior to inspection?
Ans a) A preliminary inspection should be made before the hole is cleaned
b) Before any inspection is carried out, the nut/bolt and hole must be cleaned with a solvent such as trichloroethylene
c) Clean the bolt shank and thread and re-grease and replace bolt and check for side-play.
On inspection of a critical bolted joint you witness black or grey dust or past. What type of corrosion has taken place and what type of material is involved?
a) Galvanic corrosion in magnesium alloys
Ans b) Fretting corrosion in aluminium alloys
c) Exfoliation corrosion in magnesium alloys
In a critically bolted joint
Ans a) a PLI washer can only be used once
b) a PLI washer can be used more than once only with self locking nuts
c) a PLI washer can be affected by thread lubricant
What solvents could you use to clean tools used for fibreglass repairs?
a) Lead free petrol/kerosene
b) Trichloroethylene or acetone
Ans c) acetone or MEK
Which of the following jointing compounds should not be used in the vicinity of a joint where the temperature may exceed 200 degrees C?
Ans a) DTD 369
b) DTD 200
c) DTD 900
Why is jointing compound applied to the surfaces of material being joined together prior to riveting?
a) To prevent swarf damage
b) To act as a sealant and prevent filiform corrosion
Ans c) To inhibit electrolytic action
What is the typical acceptable limit of a dent on a frame member?
a) One and a half times the skin thickness
b) Twice the skin gauge and 0.75" diameter
Ans c) One gauge depth and 0.75" diameter
What is indicated by the wrinkling of the underside of an aircraft skin?
Ans a) Hogging
b) Fretting
c) Sagging
What is used to re-protect magnesium?
a) Selenious acid
b) Deoxidine
Ans c) Chromic acid
What is used on magnesium to remove corrosion?
a) Selenious acid
Ans b) Chromic acid / sulphuric acid solution
c) Strontium chromate
How do you prevent aquaplaning during landing?
Ans a) Use reverse thrust
b) Reduce flare
c) Put flaps up
When an aircraft has been struck by lightning
a) control surface freedom of movement need not be checked provided skin punctures are less than 3/16 inch diameter.
Ans b) control surface bearings and hinges should be checked for stiffness in operation
c) Control surface freedom of movement need not be checked providing the bonding is undamaged.
Galvanic corrosion refers to a type of
a) plating process
b) surface corrosion
Ans c) corrosion between two pieces of material
Co-axial cable is preferred to airframe cable in which application?
a) High frequency interference
b) Low frequency interference
Ans c) Where the diameter of cable is not important
Chromating used on magnesium alloys produces
a) metal chromates on the surface chemically
b) chromium surface electrochemically
Ans c) a chromate film surface
Forward release connectors are
a) pushed forwards
Ans b) pulled backwards
c) twisted to the right
A metallic stiff nut
a) is pre lubricated and does not need lubricating
b) cannot be torque loaded
Ans c) cannot be used in areas in excess of 250oC
If during an engine overhaul, ball or roller bearings are found to have magnetised but otherwise have no defects, they
Ans a) must be degaussed before use
b) are in an acceptable service condition
c) cannot be used again
Damaged chromate film should be repaired by using
Ans a) selenious acid 10% by weight in water
b) phosphoric acid 10% by weight in water
c) selenious acid 20% by weight in water
When receiving new parts it is the responsibility of the engineer to check
a) it was designed to acceptable standards
b) it has a green serviceable label attached
Ans c) it is of the correct modification state and is serviceable
Chromating used on magnesium alloys
Ans a) uses chromates and converts the surface chemically
b) uses chromium and converts the surface electrochemically
c) uses chromium, which is deposited on the surface
PIDG crimp tools are marked by
Ans a) coloured handles and wire crimp size on tool
b) coloured handles only
c) wire crimp size on tool only
Repair to aluminium pipe can be done using burnishing
a) if damage is no more than 5%
Ans b) if damage is no more than 10%
c) if damage is surface only
When there is no laid down procedures for calibration, what should be used?
a) CAAIPs
Ans b) British Standards for calibration of tools
c) Aircraft Maintenance Manual
What type of flux should generally be used?
a) Active
Ans b) Non-Active
c) Passive
When measuring a square waveform with a multimeter, what voltage does it display?
a) Less than RMS value
b) More than RMS value
Ans c) Equal to RMS value
Electronic test equipment for fuel tank contents systems usually incorporate variable
a) inductors
b) resistors
Ans c) capacitors
A defect would be marked on an exhaust system using
Ans a) chalk
b) a pencil
c) a special zinc/copper tipped marking tool
Which of the following lines indicate hidden detail on a drawing?
a) A continuous line as shown in 1
b) A broken line as shown in 3
Ans c) A broken line as shown in 2
A hairline crack would show up on a dye penetrant inspection as
a) a group of dots spread over a wide area
Ans b) a continuous line of small dots
c) a thin broken line or chain
When carrying out an ultrasonic inspection, what is the gel used for?
Ans a) To create a good sonic coupling between the the probe and the test piece
b) To reduce the friction between the probe and the test piece
c) To prevent the test piece from becoming scratched by the probe
Before using a bonding tester, the 6 foot lead has the two prongs shorted together with a piece of metal. What would the indicator read?
Ans a) Full scale left
b) Full scale right
c) Zero at the centre
When using a megger to test insulation resistance, capacitive filters should be disconnected for what reason?
a) Remove the risk of damage to the megger
Ans b) Remove the spurious readings caused by the capacitors charging and discharging
c) Prevent damage to the filters
When Inserting pins into a forward facing connector the inserting tool should be used with the gap facing which direction:
a) The centre of the connector
Ans b) The outside of the connector
c) Either direction
Hydraulic crimping tool after completing the crimping operation, releases the crimp when?
Ans a) The by pass valve opens
b) The by pass valve closes
c) Foot pedal force is at maximum
The type of binding tape used for cables in temperatures above 360°C is which of the following?
a) Nylon
Ans b) Teflon
c) Nomex
At which frequency is the calibration of crimping tools carried out?
a) Annually
Ans b) Every 1000 crimps
c) Bi-annually
In order to maintain HIRF protection, bonding checks between airframe and electrical components carrying voltages greater than 50V RMS or dc should not exceed:
a) 1 M ohm
Ans b) 1 ohm
c) 0.05 ohm
Ribbon cables affected by mutual impedance and current loop leakage should be protected by
a) Shielding each individual conductor
b) Connecting all conductors to a common earth
Ans c) Earthing each alternate conductor to separate points
On a long co-axial cable how would you check for discontinuities and shorts in situ?
a) Safety ohmmeter
Ans b) Time domain reflectometer
c) Continuity tester
What is the minimum bend radius of a loom adequately supported at a terminal block?
a) 8 x diameter
Ans b) 3 x diameter
c) 10 x diameter
How are front release pins removed?
a) The tool is Inserted from the front and the pin is removed from the front
Ans b) The tool is inserted from the front and the pin is removed from the rear
c) The tool is inserted from the rear and the pin Is removed from the front
If a co-axial cable clamp is over tightened so as to compress the di-electric, how will the capacitance change?
Ans a) Increase
b) Decrease
c) Stay the same
What is the minimum bend radius of a single co-axial cable?
Ans a) 6xdiameter
b) 8 x diameter
c) 10 x diameter
What is wet arc tracking?
a) A fault caused by insulation damage and fluid contamination
Ans b) A fault caused by hot stamp printing
c) A fault caused by “knuckling through"
When using a heat shrink gun, what should the temperature of the gun be set to?
Ans a) 100 above the heat shrink value
b) 100 below the heat shrink value
c) 15° below the heat shrink value
What is the maximum resistance between the main earth system and a metal plate on which the earthing device (tyre) is resting?
a) 1 megohm
Ans b) 10 megohms
c) 100 megohms
What is the primary purpose of bonding of metallic parts of an aircraft?
a) To prevent lightening strikes
b) To carry provide a return path for electrical two-wire system
Ans c) To prevent high potential differences between metallic parts from building up
What is the reason for a primary bonding connection’s large cross-sectional area?
Ans a) To carry lightening discharge current should the need arise
b) To maintain the airframe at the same potential throughout
c) To carry the static discharge current to the conducting nose wheel
The three electrical checks carried out on aircraft are (1) continuity (2) bonding (3) insulation. What is the order in which they are executed?
a) 1-2-3
b) 2-3-1
Ans c) 2-1-3
When an engine is not in direct electrical contact with its mounting, how should it be bonded?
a) With at least one primary conductor
Ans b) With at least two primary conductors, one each side of the engine
c) With at least two primary conductors on one side of the engine
When carrying out a serviceability check on a bonding tester - short together the three prongs of both probes and ensure which of the following?
a) A full scale reading is obtained is obtained
Ans b) A zero reading
c) The meter reads 0.1 ohm
When an earth-return terminal assembly has to be replaced which of the following checks must be carried out?
Ans a) Bonding and milli-volt drop tests
b) Bonding and insulation resistance tests
c) Bonding and continuity tests
If the leads of a bonding tester are damaged, what is the procedure?
a) A new lead may be manufacturers using the correct current rated cable
b) Provided that the damage is situated dose to the end of the leads the cable may be shortened
Ans c) The damaged leads and the tester should be returned to the manufacturer for repair and calibration
When carrying out milli-volt drop checks on a circuit, what is an approximate guide for a correct reading?
a) 10 milli-volts for every 15 amps flowing
Ans b) 5 milli-volts for every 10 amps flowing
c) 10 milli-volts for every 5 amps flowing
When refueling an aircraft from a tanker, why are the aircraft and tanker bonded together?
a) To enable the aircraft re-fuel pumps to be operated from the tanker electrical supply
Ans b) To maintain the aircraft and tanker at the same electrical potential
c) To discharge static electricity from the aircraft to the tanker
When carrying out a continuity test on a circuit when a known resistance exists, what instrument would you use?
Ans a) A multimeter
b) A high resistance insulation tester
c) A lamp and battery
Effective continuity is not possible unless which of the following conditions exists?
a) All circuit earths are disconnected
Ans b) The portion of the circuit under test must constitute a simple series circuit with no parallel paths
c) All manually operated switches must be off
Why is a low voltage supply used for continuity testing?
a) To avoid damage to the wiring
Ans b) To avoid breaking down a high resistance film that might exist between contacting surfaces
c) To prevent fuses “blowing” and lamps burning out
If an insulation resistance tester is operated and the leads are suspended in free air, what will the meter read?
Ans a) Infinity
b) Zero
c) Mid scale – it is a ratiometer movement and there is no current flowing in the external circuit
When replacing a bonding connection and the original conductor cannot be matched exactly, which of the following replacements would you use?
Ans a) One manufactured from the same type of material, but of greater cross sectional area should be selected
b) One manufactured from any conducting material of the same cross sectional area be used
c) One manufactured from any piece of Nyvin cable having the correct current capacity may be used
How do you reduce or remove electrostatic charges which may build up on fibre glass surfaces?
a) The surface is impregnated with copper strips
Ans b) The surface is treated with a special conductive paint
c) No special treatment is necessary because fibre glass is an insulator
If bridging strips or bonding cords are fractured, what action may be taken?
Ans a) A new conductor should be fitted
b) The broken ends can be soldered
c) The broken ends can be repaired with an “in-line” splice
An Insulation test is carried out on a group of cables and a low reading obtained. What action would you take?
a) Change or renew all the cables involved in the test
Ans b) Break the circuit down and carry out further checks
c) A low reading would be expected because the cables are in parallel
What is a typical min insulation resistance value for an aircraft undercarriage bay?
a) 10 megohms
b) 5 megohms
Ans c) 2 megohms
Whenever possible a functional test should be carried out on an aircraft using which power supply?
Ans a) An external supply
b) The aircraft battery
c) The aircraft generators
Immediately after carrying out an insulation check, which of the following applies?
a) A continuity check must be carried out before switching on the circuit for the first time
Ans b) The readings observed arid the atmospheric conditions at the time should be noted and compared to previous readings
c) The observed readings should be noted and an independent check carried out by another engineer
A Hardy Spicer coupling has what type of bearings?
a) Plain bearings
b) Ball Bearings
Ans c) Needle bearings
When using the Trepanning Tool, the hole to be drilled should be
a) 1/32" Smaller than the guide diameter
b) 1/32" bigger than the Guide Pin Diameter
Ans c) Same diameter as the guide pin
When a helicopter lands, how does the pilot signal to ground staff when it is safe to approach the aircraft?
a) Flash the Nav lights
b) Flash the landing lights
Ans c) Turn the anti collision lights off
When using a digital meter to test a diode , a correct operation of the diode is indicated by a volt drop of
Ans a) 0.3v to 0.7v
b) 1.5v to 2v
c) 2.5v to 2.8v
When using a stripboard , the tracks on a PCB are etched
Ans a) before component fitment
b) after fitment but before soldering the components
c) after fitment and soldering of components
The recommended insulation resistance of a DC motor is
Ans a) 0.5 megohms
b) 2 megohms
c) 5 megohms
Silver soldering is suited for
a) general soldering work
Ans b) high temperature applications
c) electronic component soldering
Soft solder is suited for joints, which are
Ans a) subjected to small forces
b) subjected to strong forces
c) subjected to fatigue
To check that the ident pulse is being generated from an ATC transponder,
Ans a) press the ident and monitor the indication on the ramp test set
b) select ident and check the indication on the instrument panel
c) select an ATC channel and check the morse code
A feather key locates a gear on a shaft and permits
a) a positive and strong drive transmission
Ans b) a positive drive and axial movement
c) a positive drive with the gear firmly locked
If an aircraft exceeded the RVSM , when shall the crew report the incident in the appropriate channels
a) 24 hrs
b) 48 hrs
Ans c) 72 hrs
Dye penetrant is suited for what materials?
a) Ferrous magnetic materials only
Ans b) Non magnetic non-ferrous materials
c) Plastics and non magnetic materials only
Taper pin are classified by
a) length and taper
b) length and diameter of large end
Ans c) length and diameter of small end
Graphite greases are used for
Ans a) high temperature applications
b) low temperature applications
c) medium temperature applications
Live AC circuits to be checked for open circuits by the use of
a) ohmmeter set to megohms
Ans b) ammeter set to amps
c) multimeter set to AC volts
A milivolt drop check is to be carried out on a heavy duty relay. The milivolt meter would be connected to the relay
a) when contacts are open and power is on
b) when contacts closed and power is on
Ans c) when contacts open and power off
Light drive fits for bolts have a max size of
a) .0025 inch
b) .005 inch
Ans c) .0006 inch
Removal of ice by the use of de-icing fluid on the aircraft, before flight
Ans a) may remove ice for a period of time depending on the airfield conditions
b) must be 1 hour before flight to enable fluid to be cleaned from aircraft
c) will provide sufficient prevention of ice formation until take off
Non metallic parts of the aircraft
a) do not require to be bonded because they are non conductive
b) must be bonded by bonding leads
Ans c) must be bonded by application of conductive paint
When fitting a hydraulic component, the hydraulic seal should be lubricated with
a) with a specified hydraulic oil
Ans b) the same fluid that is used in the hydraulic system (e.g. skydrol)
c) grease
To ensure protection against HIRF affecting audio and navigation aids
a) ensure that the correct number of static wicks are fitted
b) inspect and check all bonding leads to ensure their serviceability and replace if defective
Ans c) ensure that all audio and navigation equipment is adequately screened
If the aircraft is away from base who may certify the second part of the duplicate inspection?
Ans a) a pilot with a licence for the aircraft type
b) a pilot with a licence for any similar aircraft type
c) any licensed engineer
BITE systems to be used on the ground only is deactivated by
a) the parking break
Ans b) on take off
c) by the undercarriage retraction
The intervals for calibration of test equipment
a) are every year
b) are as specified in JAR 145
Ans c) are different from one appliance to another
A multiplier resistance is used to extend the working range of the
a) ammeter
Ans b) voltmeter
c) ohmeter
On twist drill chart, small drills have
Ans a) largest numbers
b) smallest numbers
c) their sizes in fractions, in inches
What drill angle is used to drill titanium?
a) 90-100 degrees
b) 130-140 degrees
Ans c) 100-110 degrees
When pressure testing a flexible hydraulic pipe you test it at?
a) Its normal axis
b) Straight plus and minus 15 degrees
Ans c) Normal axis plus and minus 15 degrees
When turning and towing an aircraft, why should sharp radiuses be avoided?
a) Power steering leaks could occur
b) Scrubbing of nosewheel tyres could occur
Ans c) Scrubbing of mainwheel tyres could occur
The minimum 'no smoking' zone around an aircraft when refuelling is
Ans a) 6m
b) 15m
c) 10m
A CO2 extinguisher is used on
Ans a) solid, liquid and electrical fires
b) solid, liquid, hot metal and electrical fires
c) solid and liquid fires
The Sine Bar is used to
a) check accuracy of slip gauges
b) by itself to calculate angles
Ans c) produce angles using slip gauges
When tightening a nut on a bolt the torque loading applied is
a) independent of whether the threads are wet or dry
b) inversely proportional to the force applied to the spanner
Ans c) the tangential application of the force times the perpendicular distance from the point of application to the centre of the bolt
The UK standard of limits and fits is
Ans a) BS4500
b) BS308
c) BS8888
The pressure gauge fitted to a Dead Weight Tester. The piston area is 0.25 sq.in. and the total mass of the mass carrier and masses is 5lb. If the pressure gauge is accurate what pressure in pounds per square inch (PSI) it will read
a) 1.25psi
Ans b) 20psi
c) 200psi
De-icing fluid Type 1 is used
Ans a) for short holdover times
b) where the ambient temperature is below -10degrees Centigrade
c) where holdover times are long
Block cumulative maintenance means that
a) each check usually involves an increased aircraft down time
Ans b) all the checks require the same man hour input except for the major inspections
c) all the maintenance is carried out in blocks
A separate modification record book is required for
a) all aircraft
Ans b) passenger aircraft exceeding 2730 kgs MTWA
c) passenger aircraft exceeding 3600 kgs MTWA
Sector record pages from the Tech Logs, must be
Ans a) at least duplicated
b) retained for two years from the date of issue
c) retained for four years from the last effective date
In an electrical cable 1EF6B22NMS, what does the letter E represent?
Ans a) Circuit function
b) Cable size
c) Segment letter
On a vernier micrometer, what will three turns of the barrel represent?
a) 0.050"
Ans b) 0.075"
c) 0.100"
When mooring an aircraft what type of rope should be used?
Ans a) Nylon
b) Fibre, tied tight due to stretch when wet
c) Fibre, with some slack due to shrinkage when wet
When using a Pacific tensionmeter the correct tension is found by
a) reading dial, provided the correct riser is used for the cable diameter
Ans b) comparing reading to chart provided
c) adding reading to riser number
Dye penetrant kits should be stored
Ans a) out of sunlight in a dry place
b) in direct sunlight to keep it dry
c) in a dark damp cupboard
When testing a fuel metering unit, how is it checked?
a) With the meter in parallel with the unit
Ans b) With the meter in series with the unit
c) With the unit disconnected
How does a windy drill get power?
Ans a) Impeller
b) Spur gear
c) Bevel gear
Which of the following can dye penetrant be used on
Ans a) non ferrous metals
b) plastics
c) honeycomb panels
When using bonding tester
Ans a) ensure prongs penetrate anodised layer
b) ensure prongs do not penetrate anodising layer
c) an anodised component cannot be tested
An aircraft with underwing mounted engines has a heavy landing, where would you expect to see wrinkling of the skins?
Ans a) on the top and bottom skins
b) Top skin only
c) Bottom skin caused by engine inertia
in an oxygen system, if the pressure drops to 500 PSI, it
a) Causes anoxia
Ans b) blocks the oxygen system regulator
c) Begins to overheat
How are taper reamers classified?
a) Taper and diameter of small end
Ans b) Length and diameter of large end
c) Length, diameter of large end, and diameter of small end
Where do you find the preparation for weight and balance?
Ans a) Maintenance Manual
b) CAIPs
c) BCARs
An AC voltmeter reads
a) peak value
b) peak to peak value
Ans c) average value
Minimum equipments to be carried is given by
Ans a) JAR OPS
b) JAR 145
c) JAR 25
In film radiography, image quality indicators (IQI) are usually placed
a) between the intensifying screen and the film
Ans b) on the source side of the test object
c) on the film side of the object
A hydrometer is used to
a) check battery electrolyte density
b) take humidity reading
Ans c) check battery electrolyte specific gravity
A pyrometer is a
a) pyramid shaped altimeter
Ans b) thermometer for use at high temperature
c) foam/granule fire extinguisher
A hygrometer is used to
a) check battery electrolyte relative density
b) check battery electrolyte specific gravity
Comments
Post a Comment