EASA Module 7 : Maintenance Practices Questions - Part 3
EASA Module 7 : Maintenance Practices Question-Answer - Part 3
A Certificate of Release to Service must be issued after
a) a Re-fuel has been done
Ans b) a repair has been carried out in accordance with an approved repair scheme
c) engine runs
An orthographic projection usually shows
Ans a) three, two-dimensional views of an object
b) one, three-dimensional view of an object
c) a pictorial view of the object
When dimensioning a drawing, the dimension lines should be
Ans a) the minimum number of dimensions necessary to enable the component to be manufactured
b) as many dimensions as possible
c) only size dimensions
If the operator varies the content of the maintenance schedule, what action must be taken?
a) Amend the Maintenance Schedule
b) Amend the Maintenance Schedule and seek the CAA approval
Ans c) Await CAA approval before amending the Maintenance Schedule
When is a Certificate of Fitness for Flight under 'A' conditions required?
a) to allow an unregistered aircraft to fly for air test
b) after a Certificate of Maintenance Review has been signed
Ans c) to allow an aircraft to fly on air test to check out a modification
When there is an overlap of responsibility, how is the CRS signed?
Ans a) Appropriate Type Rated Licensed Aircraft Engineers must each certify the parts appropriate to their license coverage
b) Only one appropriate Type Rated Licensed Aircraft Engineer may sign the CRS as he assumes responsibility for the operation, the other engineers must sign the paperwork
c) An appropriate Type Rated Licensed Aircraft Engineer and an ATPL holder sign the CRS when the aircraft is away from base
Information contained in the ANO is
a) of a mandatory nature where safety is concerned
Ans b) of a legal nature in all sections and is therefore mandatory
c) written in compliance of the Civil Aviation Act of 1943 ratifying the ICAO Convention
Which of these metals is inspected using the magnetic particle inspection method
a) magnesium alloys
b) aluminium alloys
Ans c) iron alloys
One way a part may be demagnetized after magnetic particle inspection is by
a) subjecting the part to high voltage, low amperage a.c
Ans b) slowly moving the part out of an ac magnetic field of sufficient strength
c) slowly moving the part into an ac magnetic field of sufficient strength
What is generally the best procedure to use when removing a solid shank rivet?
a) Drill through the manufactured head and shank with a shank size drill and remove the rivet with a punch.
Ans b) Drill to the base of the manufactured rivet head with a drill one size smaller than the rivet shank and remove the rivet with a punch
c) Drill through the manufactured head and shank with a drill one size smaller than the rivet and remove the rivet with a punch
Aircraft skin is joggled to
a) Conform with the “Area Rule“
Ans b) Provide smooth airflow at faying surfaces
c) Make a frame lighter but stronger
If treated rivets have not been used within the prescribed time they can be re-treated. What is the maximum number of times that they can be heat-treated
a) Twice only
Ans b) Three times
c) If no more in Stores, as many times as required
Rivets kept at a temperature of between –15oC and –20oC are usable for
a) 150 minutes
Ans b) 150 hours
c) 150 days
A hole is placed in the lowest point of electrical cable conduit
a) to allow for pull-through of the cables
Ans b) to allow for drainage of moisture
c) to secure the conduit to a piece of aircraft structure
Taper pins are used in which of the following applications?
a) To take compression loads
Ans b) To take shear loads
c) To take compression and shear loads
What action is taken with a common circlip removed from a component?
a) It is replaced with a new item on assembly
b) It is examined for distortion
Ans c) It is checked for springiness
The maximum bolt diameter for which a 1/16 split pin may be used is
a) 1/4" or 2BA
Ans b) 3/8"
c) 7/16"
The check for a cable pulling out of a swaged fitting is by
a) seeing that the cable is still past the safety holes in the swage
b) seeing that there are no broken wires near the fitting
Ans c) looking for a shiny surface on the cable near the fitting
A 'Reel' used to hold an aircraft cable in storage should have a minimum diameter of
a) at least 25 times that of the cable diameter
Ans b) at least 40 times that of the cable diameter
c) at least 50 times that of the cable diameter
How do you remove a tight link from a chain which is to be used on an aircraft control system?
a) Dismantle, inspect, rectify and re-assemble the chain
b) If the chain has a tight link, the chain has to be removed from service
Ans c) You may be able to remove the tight link by applying a light tap with a hammer
Why is a shouldered stud used
Ans a) to provide a rigid assembly
b) as a replacement for a damaged stud
c) to decrease weight without loss of strength
Large control cables (45 to 120 cwt) may have tension loads that can break the locking wire or lease lock nuts. How is this overcome?
Ans a) A tube is fitted over the turnbuckle assembly and drilled to take up to 3 bolts, to prevent independent rotation of any part
b) The cable is kept slightly slack
c) Duplicating the number of cables to cut down on individual tensile loads
The initial lubricant on a new chain
a) should not be removed
Ans b) should be removed and replaced with the approved oil
c) must be replaced with grade altitude grease
False Brinelling of a bearing is
a) movement of the outer ring relative to its housing
b) a scoring of the race-way surfaces due to ball or roller skidding
Ans c) indentations on the race-way due to load transferred through the bearing when static
Avdel rivets are closed by
a) a squeezing process
Ans b) a broaching process
c) a tapered mandrel
What is the purpose of the Avdel pin tester?
a) To test the shear strength of the pin
Ans b) To test the tightness of the pin in the rivet
c) To test the tightness of the rivet in the hole
On completion of assembly the bearing housing
a) should be examined for end float
Ans b) lightly packed with grease
c) packed fully with grease
What purpose does flux serve in welding aluminium?
a) Removes dirt, grease, and oil
Ans b) Minimises or prevents oxidation
c) Ensures proper distribution of the filler rod
The testing medium that is generally used in magnetic particle inspection utilises a ferromagnetic material that has
Ans a) high permeability and low retentivity
b) low permeability and high retentivity
c) high permeability and high retentivity
When inspecting a butt-welded joint by visual means
a) the penetration should be 25 to 50 percent of the thickness of the base metal
Ans b) the penetration should be 100 percent of the thickness of the base metal
c) look for evidence of excessive heat in the form of a very high bead
A mechanic has completed a bonded honeycomb repair using the potted compound repair technique. What non-destructive testing method is used to determine the soundness of the repair after the repair has cured
a) eddy current test
Ans b) metallic ring test
c) ultrasonic test
The shielding gases generally used in the Tungsten Inert Gas (TIG) welding of aluminium consist of
a) a mixture of nitrogen and carbon dioxide
b) nitrogen or hydrogen, or a mixture of nitrogen and hydrogen
Ans c) helium or argon, or a mixture of helium and argon
An “On Condition” Inspection involves
Ans a) an inspection of a component with a view to continued operation if its condition warrants such action
b) replacement of life expired components for new ones
c) a program of inspections used to increase the life of lifed components
Air Navigation General Regulations are to be found in
a) Airworthiness Requirements CAP 455
b) British Civil Airworthiness Requirements Section A
Ans c) CAA Printed Manual CAP 393
The information in the ANO is given in the form of
a) Chapters, each one dealing with a different aspect of Civil Aviation, these chapters being backed up by the schedules
Ans b) Articles of Law, some of which are further clarified by Schedules
c) Regulations, each one covering a different aspect of Civil Aviation and as such is mandatory
British Civil Airworthiness Requirements
a) are printed by the CAA and are of an advisory nature
b) form the Technical requirements for the design and operation of aircraft and their equipment
Ans c) interpret the ANO and form the Technical requirements for the design
Which statement concerning a welding process is true?
Ans a) The inert-arc welding process uses an inert gas to protect the weld zone from the atmosphere
b) In the metallic-arc welding process, filler material, if needed, is provided by a separate metal rod of the proper material held in the arc
c) In the oxyacetylene welding process, the filler rod used for steel is covered with a thin coating of flux
The "Dwell Time" of a dye-penetrant NDT inspection is the
a) amount of time the developer is allowed to act
Ans b) time the penetrant is allowed to stand
c) time it takes for a defect to develop
The stems of an Avdel rivet are
a) removed with the riveting tool
b) removed with a taper punch
Ans c) nipped off and milled flush with the head
When checking a ball bearing for corrosion and foreign matter
Ans a) oscillate and rotate slowly to listen for roughness
b) rotate at operational speed and check for roughness
c) make a strip down inspection
A thread insert is made from
a) white metal
b) aluminium alloy
Ans c) stainless steel
Filing or grinding a weld bead
a) may be performed to achieve a smoother surface
Ans b) reduces the strength of the joint
c) may be necessary to avoid adding excess weight or to achieve uniform material thickness
What non-destructive testing method requires little or no part preparation, is used to detect surface or near-surface defects in most metals, and may also be used to separate metals or alloys and their heat-treat conditions
Ans a) eddy current inspection
b) ultrasonic inspection
c) magnetic particle inspection
A thread insert is removed by
a) using a drill the major diameter of the thread insert
Ans b) a special drill provided by the thread insert manufacturer
c) once fitted, a thread insert must not be removed
To correctly tension cables it can help
Ans a) to have control surface locks in to support weight and adjust turnbuckles equally
b) to take up initial slack by additional pulleys
c) to use a cable with turnbuckles at least every eight feet
What type of load is a journal load?
Ans a) Radial
b) Axial
c) Centrifugal
What is the pressure range for the Avdel Riveter Type F
a) 20 to 60 lbs per sq. in
Ans b) 60 to 80 lbs per sq. in
c) 40 to 60 lbs per sq. in
Gamma Ray Testing of combustion chambers will show up
Ans a) light grey on black background
b) black on lighter background
c) grey on white background
In selecting a torch tip size to use in welding, the size of the tip opening determines the
Ans a) amount of heat applied to the work
b) temperature of the flame
c) melting point of the filler metal
Which of these non-destructive testing methods is suitable for the inspection of most metals, plastics and ceramics for surface and subsurface defects:
a) magnetic particle inspection
b) eddy current inspection
Ans c) ultrasonic inspection
The most important consideration(s) when selecting welding rod is/are
a) current setting or flame temperature
Ans b) material compatibility
c) ambient conditions
A CMR is raised after
a) defect rectification
Ans b) scheduled servicing at specified intervals
c) major overhaul
Compliance with the ANO is restricted to
Ans a) aircraft and their equipment which are on the UK Civil Register only
b) aircraft and their equipment which are on the UK & Commonwealth Civil Registers
c) All civil aircraft and their equipment on the international Civil Register
The measuring capacity of a Vernier Caliper is
a) the length of the graduated scale
b) the length of the graduated scale plus the width of the nibs
Ans c) the length of the graduated scale less the length of the vernier scale
To drill a 1/4 inch hole in titanium, the correct starting procedure would be
a) to drill 1/4 inch hole direct
b) to centre punch
Ans c) to centre drill
When using a D.T.I. to check the run-out of a shaft, readings of -15 to +25 would indicate a run-out of
a) 0.025 inches
b) 0.040 inches
Ans c) 0.020 inches
Vee-blocks are manufactured
a) as single items and may be paired with any other vee-block
Ans b) in sets of two and identified for use as a set
c) in sets of three and identified for use as a set
The metric micrometer reading shown is
a) 13.87 mm
Ans b) 13.37 mm
c) 10.337 mm
When fitting Rivnuts into position how are they secured and prevented from rotating?
a) Peened
b) Locknut at the rear
Ans c) A locating key
The oxyacetylene flame for silver soldering should be
a) oxidizing
Ans b) neutral
c) carbonizing
A flexible hose that cannot be internally inspected by eye or intrascope can be ball tested by suspending from one end at a time to check
Ans a) ball of 90% of bore of end fittings passes freely under own weight
b) a ball of 98% of bore of end fittings passes freely under own weight
c) a ball of 95% of bore of hose can be pushed through with a metal rod
Bearings to be cleaned for further examination should be wiped free of all grease on outer surfaces with the aid of dry compressed air for cages and rolling parts. The bearings should then be soaked in:
a) lead free gasoline
Ans b) white spirit
c) M.E.K.
Ultra sonic flaw detectors use
Ans a) high frequency sound waves
b) x-rays
c) a magnetic field
on an engineering drawing would indicate
a) repair and recondition
b) ultra-sonic test
Ans c) dye penetrant check
S.W.G. is an abbreviation for
Ans a) Standard Wire Gauge
b) Screw Width Gauge
c) Standard Water Gauge
A Certificate of Release to service states that
a) the aircraft has been maintained to an approved schedule
b) an operator has satisfied the CAA of his competence
Ans c) a task has been carried out in accordance with the ANO
When can a CMR be renewed
Ans a) never
b) 1 year
c) 2 years
If the edge of aluminium is treated with caustic soda, the metal turns
a) black
Ans b) white
c) black / white / black
Technical and Administrative information is officially circulated to L.A.M.E.S. in
a) C.A.I.P.s
b) B.C.A.R.s
Ans c) A.W.N.s
After cleaning a bearing should be dried with
a) lint free rags
b) left in free air to dry naturally
Ans c) clean, warm, dry compressed air
Hoses are normally pressure tested to
a) 2 times maximum working pressure
Ans b) 1½ times maximum working pressure
c) maximum working pressure
Defects are indicated in the dye penetrant crack detection test by
a) green lines and dots
Ans b) red lines on a white background
c) yellowish green marks
A dent is measured in a tubular push-pull rod by
a) passing a ball down its bore
b) callipers and feeler gauges
Ans c) a steel ball and micrometer
A fluid line marker with a skull & crossbones is
Ans a) warning symbol
b) radioactive symbol
c) fluid line carries toilet waste
NDT using colour dye process at temperatures below 15°C will
a) mean choosing alternative NDT method
b) not be affected by the temperature
Ans c) retard the penetrant action of the dye and penetration time is extended
The international marking for a water injection pipeline is a series of
a) dots
b) squares
Ans c) chevrons
What solder should be used to solder aluminium?
a) 90% tin and 10% zinc
Ans b) wire flux cored solder
c) D.T.D. 685 lead-silver-tin solder
The soldering method where molten solder is pumped from the bottom of a bath through a slot so that a stationary wave of solder appears on the surface is known as the
Ans a) standing wave bath method
b) stationary wave method
c) rotary bath method
A ketts saw is used because
a) its low torque allows single handed use
b) it is available be both pneumatic and electric
Ans c) it can cut thicker metal than is required by most repair schemes
An aircraft should be cleared of snow
a) using hot fluid
b) using cold fluid
Ans c) using air blast
The gears used in a pistol windy are
Ans a) spur gears
b) gears in a gearbox
c) gerotor type gears
When countersinking rivet holes in a material
a) a plain countersinking 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 prevent drilling too deep should be used
When using dye penetrant NDT on a tank, the dye 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 the developer on the inside
The international marking for a fire protection pipe line is a series of
Ans a) diamonds
b) circles
c) squares
Hi-Loks are installed with the
a) shank lubricated when fitting
b) thread lubricated when fitting
Ans c) thread and shank not lubricated
The minimum distance between electrical cable splices is
a) 12 inches
b) 3 feet
Ans c) 500 mm
Pipe flaring is carried out
a) in the annealed state
Ans b) as supplied
c) after normalizing
What is meant by empty weight?
a) Basic weight minus unusable fuel plus oil
Ans b) Basic weight plus unusable fuel plus oil
c) Basic weight only
When picketing a helicopter you
a) tie down one blade
Ans b) fit sleeves and tie off all blades
c) fit sleeves to the blades to protect them if they strike the ground
Circuit tests on aircraft should be carried out in the following order
a) continuity, bonding, functional, insulation
b) functional, bonding, continuity, insulation
Ans c) bonding, continuity, insulation, functional
A rivet shaver is used to
Ans a) mill the head flush
b) mill the tail after setting
c) mill the tail after cutting
What NDT method would you use to detect delamination?
a) Colour contrast dye penetrant
b) Eddy current
Ans c) Ultrasound
Before using a dead weight tester you would
a) calibrate the tester using a standard weight
b) replace the oil
Ans c) pressurize the tester to the required pressure
After the normal function test of an individual circuit has been completed and the circuit switched off
a) a second function test must be carried out to verify the first
Ans b) the fuse should be removed and the circuit again switched on to check the isolation of the circuit concerned
c) a duplicate check must be carried out in accordance with AWN 3
A drill and wire gauge has holes numbered
a) 1 to 50
Ans b) 1 to 80
c) 10 to 60
A 250 volt megger should not be used
a) in fuel tanks
Ans b) on electronic equipment
c) on radio aerials
What does GA stand for on a drawing?
Ans a) General arrangement
b) General assembly
c) Gradient Axis
What is the purpose of an aileron balance cable?
a) Allows for hands off flying
Ans b) Equalizes control cable tension
c) Relieves pilot loads
When dimpling sheet with a squeeze dimpling tool
Ans a) adjust the jaws to accommodate different material gauges
b) the jaws are not adjustable
c) use a lubricant
Bend radius on sheet metal is
a) outside radius
Ans b) inside radius
c) inside radius + ½ thickness
Why would you joggle panels?
a) To make a stronger joint
Ans b) To make panels flush
c) To make a tighter seal
Magnetic particle testing detects faults
a) longitudinally
Ans b) transverse
c) longitudinal and transverse
Dye penetrant in a cold climate
a) is not affected
Ans b) takes longer to work
c) works more quickly
If the leads of a megger are held apart
a) the spring will return the needle to the zero stop
Ans b) if the handle was turned the metre would read infinity
c) the spring will return the needle to infinity
If after spraying the developer, red blotches appear, the part
a) was not cleaned properly
Ans b) is porous
c) has sub-surface defects
When storing parts you should use
Ans a) silica gel
b) monitor the temperature
c) place in a sealed container
How would you inspect a cable for fraying?
a) Run your fingers the full length of the cable
Ans b) Run a rag the full length of the cable
c) Operate the controls and feel for stiffness
What causes knuckling on older type electrical cables?
Ans a) Excessive pull through forces
b) Over-temperature soldering
c) Applying cable ties too tightly
to find a high resistance or open circuit, carry out
a) a bonding check
b) a milli-volt drop test
Ans c) a continuity check
The maximum bonding resistance on an aircraft primary structure should be
a) 0.001 ohms
b) 0.01 ohms
Ans c) 0.05 ohms
One megohm is equal to
a) 1,000 ohms
b) 100,000 ohms
Ans c) 1,000,000 ohms
before effecting a crimp, the bare ends of a cable should be
Ans a) twisted lightly in the direction of the lay
b) straightened out
c) tightly twisted
Reamers are used to
a) drill accurate holes
Ans b) enlarge holes to accurate dimensions
c) to make holes oversize
The pitch of a hacksaw blade is
a) its length
b) the number of teeth on the blade
Ans c) the number of teeth per inch
The web angle of a twist drill is
a) 59o
b) 12o
Ans c) 130o
The leads of a bonding tester
Ans a) have critical lengths and the resistance of the leads is accounted for
b) are supplied in 60 foot and 6 foot lengths but can be varied due to wear
c) are interchangeable, one 60 foot long having two prongs and a 6 foot one with a single prong
The number of the dots impressed on the insulation of the pre-insulated connectors during crimping indicates that
a) the crimp is properly formed
Ans b) the correct tool was used to effect the connection
c) the correct connector has been used
The pressure of the insulation crimp jaws on the PIDG crimping tool can be changed by
a) varying the torque applied to the handles
Ans b) changing the position of the pins
c) using different coloured crimping pliers and terminations
When referring to fuses, HRC means
a) hot running capacity
b) high running current
Ans c) high rupture capacity
Expanding reamers are used to
a) ream holes in metal that has been heated
Ans b) ream holes of different diameters by adjusting the position of the blades
c) ream tapered holes
The main scale on a 24/25 vernier caliper is divided into
Ans a) inches, tenths and fortieths
b) inches, tenths and twentieths
c) inches, tenths and thousandths
The vernier height gauge uses the same principle as the
a) micrometer
b) bevel protractor
Ans c) vernier caliper
Design drawings of aircraft components are produced by organizations approved by
Ans a) CAA in accordance with the BCARs
b) British Standards Institute
c) SBAC
This symbol found on an engineering drawing would mean
a) cylindricity
b) concentricity
Ans c) angularity
One revolution of the thimble of the English micrometer produces a linear movement of the spindle of
a) 0.040"
b) 0.001"
Ans c) 0.025"
The pitch of a metric micrometer screw thread is
Ans a) 0.5 mm
b) 0.02 mm
c) 1.0 mm
ATA specification 100 is
a) the American FAA specification controlling the manufacture of aluminium and its alloys
b) the procedures which must be complied with before an aircraft can be given a Certificate of Airworthiness in the Transport Category (Passenger)
Ans c) the International standardization of maintenance manuals, illustrated parts catalogues, overhaul and repair manuals, service bulletins and letters
When wiring an electrical component to a plug, the live wire is coloured
a) green and yellow
b) blue
Ans c) brown
When lifting a bulky component with a wire rope sling, the component can be protected from damage by the sling by
a) using a suitably shaped sling
Ans b) using spreader bars and packing
c) fabricating alternative lifting points
A dry powder extinguisher is coloured
a) red
b) green
Ans c) blue
When torque loading, a wrench should be selected where the required value falls
Ans a) at the top end of the range
b) at the bottom end of the range
c) in the middle of the range
Torque loading is carried out to provide
a) as tight a joint as possible
b) flexibility
Ans c) sufficient clamping without overstressing
High temperature solder is used where the operating temperature is high. It is an alloy of
a) lead / copper / antimony
b) tin / zinc / antimony / silver
Ans c) tin / lead / antimony / silver
A flux is used in soldering to
a) etch the metal surface for more adhesion
Ans b) dissolve oxides
c) prevent solder spikes
Acetylene gas forms an explosive compound with
a) tin and silver
b) tin and copper
Ans c) copper and silver
When manufacturing aircraft control cables, the cable can be cut by
Ans a) using a chisel on a flat metal surface
b) using a hacksaw with the cable under tension
c) using an oxy-acetylene torch
When fitting a ball bearing to a shaft it should be carefully positioned using
a) a copper or aluminium tube drift
b) a steel drift with light blows
Ans c) a soft steel or brass tube drift
A ball or roller bearing is cleaned by soaking and rinsing in
Ans a) white spirit
b) trichloroethylene
c) petroleum spirit
to allow for shrinkage, vibration and whip all straight hoses must be
a) 2% longer than the distance between the fittings
Ans b) 3% longer than the distance between the fittings
c) 5% longer than the distance between the fittings
Gas bottles for CO2 air and acetylene are coloured
a) grey, maroon, green
b) green, grey, maroon
Ans c) black, grey, maroon
Graphite prevents seizure and conducts heat. It is normally used in
a) lithium based greases
b) copper based greases
Ans c) sodium based greases
What is the purpose of the developer in a dye penetrant inspection?
a) It is drawn to the crack by electrostatic attraction
b) It seeps into the crack and makes it show up
Ans c) It acts a s a blotter to draw out the penetrant that has seeped into the crack
The test equipment normally used to carry out a continuity test on an electrical cable is
a) a high tension circuit tester
Ans b) a low reading ohmmeter
c) an ammeter
If all three prongs on a bonding tester were shorted together, the metre would read
Ans a) zero
b) FSD
c) off-scale high
An aircraft should carry at least the following number of spare fuses
a) 3
b) 10
Ans c) 3 or 10%, whichever is greater
The pitch of the screw thread on an English micrometer is
a) 0.050 in
b) 0.0001 in
Ans c) 0.025 in
The vernier scale on an English micrometer is divided into
a) 50 equal divisions
Ans b) 25 equal divisions
c) 40 equal divisions
Which pictorial projection shows one face in true elevation and line of depth normally draw at 30oor 45o to the horizontal
Ans a) oblique
b) perspective
c) isometric
If a design amendment is made on a drawing
a) the old issue number is retained, with the amendment date added
Ans b) a new issue number and date must be allocated to the drawing
c) no change in issue number or date is necessary
The thimble of a metric micrometer is divided into
Ans a) 50 equal divisions
b) 25 equal divisions
c) 40 equal divisions
The main advantage of dye penetrant inspection is
a) the part to be inspected does not require cleaning
Ans b) the penetrant solution works on any non-porous material
c) the defect must be opened to the surface
The British Standard for Engineering Drawings is
a) BS 307
Ans b) BS 308
c) BS 306
What is the normal spacing between rivets
Ans a) 4 D
b) 2 D
c) 3 D
In British rivets (solid) what is the length grading unit?
a) 1/10"
Ans b) 1/16"
c) 1/32"
If the thickness of a single sheet of material, about to be joined by riveting was 1/16" of an inch thick what would be the approximate diameter of the rivets to be used
Ans a) 3/16"
b) 1/16"
c) 1/8"
To detect a minute crack using dye penetrant inspection usually requires
a) that the developer be applied to a flat surface
Ans b) a longer than normal penetrating time
c) the surface to be highly polished
When checking an item with the magnetic particle inspection method, circular and longitudinal magnetization should be used to
Ans a) reveal all possible defects
b) evenly magnetize the entire part
c) ensure uniform current flow
P.C.D. is an abbreviation for
a) Pitch Cord Diameter
b) Precision Circle Dimension
Ans c) Pitch Circle Diameter
Maintenance Schedules are issued
a) with an approval certificate by the CAA
b) in a folder with the operators name on the cover
Ans c) by the operator with CAA approval
This represents
Ans a) squared shaft
b) bearing on shaft
c) relief valve
After a mandatory inspection has been carried out by a Licensed Engineer, what is issued
a) a Flight Release Certificate
Ans b) Certificate of Release to Service
c) a Certificate of Maintenance Review
A hard time engine inspection involves
a) removal of an engine component, its inspection and refitting
b) an in-situ function test
Ans c) replacement with a new or overhauled component
This represents
Ans a) internal thread
b) external thread
c) counterbored hole
Drawing numbers are
Ans a) unique to each drawing
b) changed after each drawing amended after May 28, 1999
c) the same as serial numbers
Hatching lines are usually drawn at:
Ans a) 45o
b) 30o
c) 60o
Which type crack can be detected by magnetic particle inspection using either circular or longitudinal magnetisation
Ans a) 45o
b) longitudinal
c) transverse
Who approves Maintenance Manuals
Ans a) The CAA
b) The Board of Trade
c) The Department of Trade and Industry
Surface cracks in aluminium castings and forgings may usually be detected by
Ans a) the use of dye penetrants and suitable developers
b) gamma ray inspection
c) submerging the part in a solution of hydrochloric acid and rinsing with clear water
Regarding riveting, which of the following is correct?
a) the length of a round head or flat head is measured from the end of the rivet to underside of rivet head
b) the length of a countersunk rivet (flush head) is measured from the end of the rivet to the top of the countersunk head
Ans c) both of the above are correct
When riveting, a certain clearance must exist between the rivet and the hole in which it is fitted, to allow for shank expansion. If the clearance is too large, what could be the result?
Ans a) Separation of the sheets may occur
b) sheet may tend to buckle
c) Indentations by rivet head on the material
To replace one 1/8 inch rivet
a) two 1/16 inch rivets would be required
Ans b) four 1/16 inch rivets would be required
c) three 1/16 inch rivets would be required
The scale of an engineering drawing is shown as 1:4. This indicates it is
a) drawn to scale
Ans b) drawn to a quarter
c) drawn four times larger
When riveting, the distance from the edge to the rivet (land) should not be less than
a) 1D
Ans b) 2D
c) 4D
The type of flux to be used When soft soldering on aircraft is
a) active
Ans b) non-active
c) either active or non-active
When carrying out a pressure test on a pipe it should be
a) twice the working pressure for two minutes
b) three times the working pressure for five minutes
Ans c) 1.5 times the working pressure
When checking a hose after installation it should be checked for freedom of movement
a) by flexing +/- 15o either side of the neutral position
Ans b) by flexing through the normal operating range plus 15o
c) by flexing through the normal operating range only
If the outer cover of a flexible hose is found to be cracked
a) it is unserviceable since it may have a restricted flow
b) it is unserviceable since it may leak
Ans c) it may still be serviceable
A rigid hydraulic pipe requires shaping. It should be carried out
Ans a) as supplied
b) after annealing
c) after age hardening
The maximum permissible bow in a steel tube is
a) 1:400
Ans b) 1:600
c) 1:200
The strength of a riveted joint compared to that of the original metal is
Ans a) 75%
b) 100%
c) 125%
A repair has a double riveted joint. The shear strength would be
Ans a) 75%
b) 100%
c) 125%
The equipment required to carry out a run-out check on a shaft would be
Ans a) a DTI and 'V' blocks
b) a ball bearing and a micrometer
c) a surface plate and a three leg trammel
Fretting corrosion on a braided pipe would mean it was
Ans a) unserviceable and should be replaced
b) not necessarily unserviceable
c) only unserviceable if the corrosion penetrates the braids
When weighing an aircraft the hydrostatic weighing units are positioned
a) one under each jack
Ans b) one on top of each jack
c) either under or on top of each jack
To enable a composite panel to dissipate static charge it would be sprayed with
Ans a) aluminium paint
b) ferrous paint
c) polyurethane paint
When carrying out a dye penetrant test, after the developer has been applied it should be inspected
Ans a) as soon as the developer is dry and again after approximately 10 minutes
b) after 30 minutes
c) after 1 hour
How many teeth per inch are there on a fine hacksaw blade?
a) 16
Ans b) 32
c) 64
What is the cutting angle of a drill?
a) 130o
Ans b) 59o
c) 12o
When inserting a helicoil insert, which way does the tang face?
Ans a) Towards the hole
b) Away from the hole
c) Towards the mandril
When using a moving coil as an ammeter the greatest amount of current flows through the
a) coil
Ans b) shunt
c) bushes
During a colour contrast test the penetrant time should be
Ans a) longer for a small crack
b) shorter for a small crack
c) longer for a wide crack
When using the old style vernier caliper for taking internal measurements
Ans a) add the nib measurements
b) subtract the nib measurements
c) the nib size has no relevance and can be ignored
To carry out an insulation test on a wire rated at 115 volts you would use
a) a 500 volt meggar
Ans b) a 250 volt meggar
c) a 115 volt meggar
How would you test a mach switch in-situ?
a) It is not possible to test a mach switch in situ
Ans b) Use an external test kit
c) Use built in test equipment
A wire clamped vertically at one end and horizontally at the other end should have a bend radius of no less than
a) 10 times the diameter of the wire
Ans b) 3 times the diameter of the wire
c) 5 times the diameter of the wire
The standard minimum rivet row spacing is
a) 3 D
Ans b) 4 D
c) 2 1/4 D
In sheet metal bending, how would you measure the bend radius to calculate the bend allowance?
a) Measure to the outside of the bend radius
Ans b) Measure to the inside of the bend radius
c) Measure to the inside of the bend radius plus half the metal thickness
A dry joint when soldering is caused by
a) too much flux
Ans b) too little heat
c) too large an iron
What elements is silver solder made from?
Ans a) Tin, lead and silver
b) Tin, lead and copper
c) Tin and lead only
How should a dye penetrant field kit be stored?
a) At a cold temperature in a darkened room
b) In direct sunlight
Ans c) At room temperature away from direct sunlight
When carrying out a colour contrast test on a pressure vessel
a) the dye should be applied to the outside and the developer to the inside
b) both the dye and the developer should be applied to the outside
Ans c) the dye should be applied to the inside and the developer to the outside
After a reported lightening strike
Ans a) the flight controls should be checked for full and free movement before the next flight
b) the flight controls need to be checked for full and free movement only if a bonding lead to one of the control surfaces is found to be burned or broken
c) the aircraft and its systems must have a major overhaul before the next flight
Aircraft below 5700kg not used for commercial air transport purposes are required to be reweighed
a) every 5 years
Ans b) as required by the CAA
c) every 2 years
When an aircraft has been reweighed under JAR OPS, what should be done to the old weight and balance report
Ans a) destroyed after 5 years
b) kept in the aircraft logbook
c) kept in the weight and balance schedule
When the park brake has been applied on a an aircraft which has a pressurized hydraulic system and is reading maximum system pressure, the brake gauges to the left and right main wheels will read
Ans a) full system pressure
b) no indication
c) full scale deflection
What tap do you use when fitting a Helicoil?
a) The same as the original thread size
b) The next size up from the original tap size
Ans c) The tap supplied with the Helicoil kit
What is the maximum bow allowed in a strut?
a) 1 in 200
Ans b) 1 in 600
c) 1 in 500
On a hollow tube where would a small indentation normally be unacceptable?
a) In either of the outer 1/3 portion of the tube
Ans b) In the mid 1/3 section
c) Nowhere on the tube is an indentation acceptable
after a report of flight through heavy turbulence, you would
a) carry out a major overhaul
Ans b) check the aircraft symmetry
c) not carry out any checks
When leak testing with a colour contrast field kit, the soak time for a component less than 1/8 in. (3mm) thick would be
a) at least the normal soak time
b) at least twice the normal soak time
Ans c) at least 3 times the normal soak time
The normal drill angles are
a) cutting angle 130o, web angle 59oand clearance angle 12o
Ans b) cutting angle 59o, web angle 130oand clearance angle 12o
c) cutting angle 12o, web angle 130oand clearance angle 130o
To check a chain for articulation
Ans a) it should be run over the finger through180o and checked for smoothness and kinks
b) move each link individually and check for tightness
c) lay on a flat surface and check for kinks
Glycol de-icer fluid in contact with a silver cable can cause
a) corrosion
Ans b) a fire
c) disintegration of the cable insulation
with a rear release connecter, the pin will be
a) released from the front and extracted from the rear
Ans b) released from the rear and extracted from the rear
c) released from the rear and extracted from the front
The maximum operating temperature for a nickel plated copper or aluminium connector is
a) 135oC
b) 200oC
Ans c) 260oC
What gauge of pin would a yellow plastic insert / extract tool be used on?
Ans a) 12 - 10
b) 22 - 18
c) 16 - 14
Can the insulation grip be adjusted on a PIDG crimp tool?
a) No
b) Yes by turning a knob
Ans c) Yes by adjusting the pins
The abbreviation “A/F” means
a) American Fine
b) Associated Fine
Ans c) Across Flats
This drawing indicates
Ans a) a blind hole
b) a countersunk hole
c) a counterbored hole
The width of a visible outline on a drawing is
a) 0.3 mm
b) 0.5 mm
Ans c) 0.7 mm
What gauge of pin would a red plastic insert / extract tool be used on?
a) 12 - 10
Ans b) 22 - 18
c) 16 - 14
What cable would you use where temperatures are going to exceed 200oC?
a) Tinned copper or aluminium
b) Silver plated copper or aluminium
Ans c) Nickel plated copper or aluminium
When weighing an aircraft by the weighbridge method the aircraft is
a) jacked and leveled
b) only leveled laterally
Ans c) resting on the wheels
What test do you do on a bonded join?
a) shear
b) tension
Ans c) peel
Skin wrinkling on the lower surface of a wing is caused by
Ans a) hogging
b) sagging
c) tension
The maximum temperature for Nyloc nuts is
a) 100oC
Ans b) 120oC
c) 160oC
What type of grinding wheel would you sharpen an HSS drill bit on?
Ans a) A fine wheel
b) A course wheel
c) A green wheel
When using a reamer
Ans a) use the same lubricant as was used on the drill bit
b) use lard oil
c) use no lubricant
The maximum value of bonding of a secondary structure is
a) 1 kilohm
b) 1 megohm
Ans c) 1 ohm
How long should a fireproof cable last in a fire?
a) 5 minutes
Ans b) 15 minutes
c) 50 minutes
What type of rivet would you use when there is access to only one side of the work?
a) Hilok
b) Pop
Ans c) Blind
When using a colour contrast dye penetrant kit, and a small crack is suspected in the material
Ans a) less developer should be used
b) less inhibitor should be used
c) a magnifying glass is recommended
How would you use a Pacific T5 tensiometer?
a) Use a load meter to apply the correct load
b) Use a standard riser and use the chart to correct for different sized cables
Ans c) Use correct chart and correct riser
Small indentations in the race of a ball bearing indicate
Ans a) brinelling
b) corrosion
c) overtorqueing
What gauge of pin would a blue plastic insert / extract tool be used on?
a) 12 - 10
b) 22 - 18
Ans c) 16 - 14
On a composite repair the vacuum should be
a) above required level
b) below required level
Ans c) at the required level
The insulation resistance for wiring in undercarriage wheelwells should normally be not less than
a) 10 megohms
b) 5 megohms
Ans c) 2 megohms
How many teeth per inch are used on a hacksaw blade for cutting hard metal?
a) 26
Ans b) 36
c) 54
How many strokes per minute are used on a hacksaw when cutting thick metal?
Ans a) 30
b) 55
c) 65
What would you use to check the runout on a control rod?
Ans a) DTI + V blocks
b) Micrometer + ball bearing
c) 3 leg trammel + feeler gauge
Points forward of the datum point are
a) positive
Ans b) negative
c) neutral
Where would you disconnect a chain?
Ans a) At a bolted joint.
b) At a spring clip joint.
c) At an riveted joint.
How many strokes per minute should be used with a hacksaw?
Ans a) 30
b) 55
c) 60
Unused holes in an electrical multi-pin connector should be
a) fitted with pins
Ans b) fitted with blanks
c) left open
How many times can a locking plate be used?
a) once, then discarded
Ans b) indefinitely providing it is a good fit around the component to be locked
c) 3 times, then discarded
In a front release connector the pin will be
Ans a) released from the front and extracted from the rear
b) released from rear and extracted from the front
c) released from the front and extracted from the front
What cable would you use where temperatures are going to exceed 200 degrees C?
a) Aluminium
b) Silver plated
Ans c) Nickel plated
Brinelling of a wheel bearing could be caused by
Ans a) heavy landing
b) rotation of the outer race in the wheel housing
c) overheating of the brakes
A hi-lock collar should be
a) lubricated before fitting
b) washed in solvent before fitting
Ans c) not lubed or washed because they are lubed at manufacture
A CAA issued capability list gives
a) details of the scope and extent of a type rated engineer's license
Ans b) details of the scope and extent to which an organization's approval is granted
c) details of the operational restrictions in terms of manoeuvres (g. forces) placed on a transport category aircraft at the time of issue of a C of A.
Mandatory Warning Plagues and symbols
Ans a) must be displayed on all flights
b) must be displayed in the cabin only if they are legible
c) need not be displayed if they are incorporated in the flight manual
A chain removed for routine inspection
Ans a) does not need proof loading
b) must be proof loaded to 50%
c) must be proof loaded to 150%
Taper pins resist what loads
Ans a) shear
b) tension
c) compression
The pipe flaring angle is
Ans a) 37o
b) 25o
c) 45o
What is a drill cutting angle?
Ans a) 59o
b) 12o - 15o
c) 125o - 135o
When drilling out a rivet, use a drill
Ans a) same size as the hole
b) larger than the hole
c) smaller than the hole
A dry joint in soldering is caused by
a) flux not used
Ans b) components not hot enough
c) wrong solder used
What type of drill would you use on carbon fibre?
Ans a) carburundum
b) tungsten carbide
c) diamond tipped
After welding why would you normalise to
a) remove carbon build up from the welded joint
Ans b) release the stresses from the material
c) remove oxidation from the welded joint
A stud broken off below the surface is removed by
a) using a stud box
b) cutting a slot in it and removing with a screwdriver
Ans c) a stud remover tool fitted into a drilled hole
Following a major defect the C of A
a) will be suspended until the defect is rectified.
b) will be invalidated and needs renewing.
Ans c) is not affected, however may run out on a time basis.
Brinelling of a bearing is
Ans a) shallow smooth depressions caused by the rollers being forced against the cup, due to overtorquing
b) blueing of the bearing due to overheating
c) indentations in the race surface caused by continual static vibration
The purpose of a joggle is
a) to act as a tea stopper
Ans b) to produce a flush fit at a metal joint
c) to make the holes for a rivet line up
When riveting two dissimilar sheets of metal together the joint should be protected with
a) paint
b) grease
Ans c) jointing compound
Caustic soda applied to a metal turns black. This would indicate the metal is
a) aluminium
Ans b) duralumin
c) magnesium alloy
Proof testing after cable installation is
Ans a) not required
b) sometimes required
c) always required
An aircraft control chain is connected using
a) a split link and spring clip
b) quick release pins
Ans c) nuts and bolts
If a control chain can be lifted clear of a tooth, it should be
Ans a) removed and an elongation check carried out
b) cleaned, retensioned and inspected after a period of time
c) rejected as unserviceable
A control cable that has been contaminated with acid should be
a) cleaned
b) cleaned, inspected, and reinspected after a period of time
Ans c) rejected
Removal of a scratch from a sheet of metal requires
Ans a) burnishing
b) blending
c) polishing
When dimpling a sheet of metal you would require
a) a male die only
Ans b) a male and female die
c) an oversized rivet and special reaction block
A micro-shaver is used to
a) cut rivets to length prior to forming
b) trim the shank diameter prior to forming
Ans c) mill the rivet head after forming
The skin on an aircraft is normally manufactured from
Ans a) 2024 aluminium alloy
b) 2117 aluminium alloy
c) 7075 aluminium alloy
Springs are manufactured from
a) high carbon alloy steel with low strength requirements
b) low carbon alloy steel with high strength requirements
Ans c) high carbon alloy steel with high strength requirements
The mold point is
Ans a) an imaginary point from which real base measurements are provided
b) the centre of curvature of a radiused corner in a metal fabricated component
c) the mid point in the thickness of a sheet of metal to which the radius dimension is calculated
Relief holes are
Ans a) holes drilled in the corner of a metal box to prevent cracking
b) holes drilled in a battery container to provide drainage
c) holes drilled to stop a crack
The 'setback' is
Ans a) the distance from the mold point to the bend tangent line
b) the distance from the bend tangent line to the setback line
c) the distance from the edge of the metal to the bend tangent line
A balance cable is installed in a control system to
a) allow the aircraft to be flown 'hands off'
b) correct for wing heaviness
Ans c) enable the cable to be tensioned
Faying surfaces are
a) surfaces that have been treated with anti-corrosion compound
b) surfaces that are stressed
Ans c) surfaces that are in contact with each other
After a heavy landing you should inspect
a) the engine module alignment
Ans b) the engine thrust alignment
c) the engine toe-in
The flux used during brazing is a mixture of water and
Ans a) borax powder
b) hydrochloric acid
c) zinc chloride
A wear check on a cylinder head valve spring should include
a) diameter and length
Ans b) length under load
c) length off-load
A tapered roller bearing is designed to take
a) radial loads only
b) axial loads only
Ans c) both radial and axial loads
Click Here For EASA Module 7 : Maintenance Practices Questions - Part 2
Click Here For EASA Module 7 : Maintenance Practices Questions - Part 1
Click Here For EASA Module 7 : Maintenance Practices Questions - Part 2
Click Here For EASA Module 7 : Maintenance Practices Questions - Part 1
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