THEORY OF FLIGHT QUE 151 TO 200 : FOR AME EXAMS

151. If the stall speed is 75 knots what is the same stall speed in mph
a) 75 x 0.87    # b) 75 / 0.87    c) 75 / 0.87 x relative density
152. As the angle of attack increases the stagnation point
a) moves towards the upper surface    # b) moves towards the lower surface   c) does not move
153. The term pitch-up is due to
# a) compressibility effect    b) ground effect    c) longitudinal instability
154. In a steady climb at a steady IAS, the TAS is
# a) more than IAS   b) less than IAS   c) the same
155. An untapered wing will
a) have no yaw effect in banking   b) have no change in induced drag in the bank    # c) stall at the root first
156. With the ailerons away from the neutral, induced drag is
a) unchanged but profile drag is higher    b) higher on the lower wing plus profile drag increases
# c) higher on the upper wing plus profile drag increases
157. The lift drag ratio is
a) higher at mach numbers above supersonic    # b) higher at sub sonic mach numbers    c) the same
158. The force opposing thrust is
# a) drag                b) lift       c) Weight
159. Directional stability is about the
# a) normal axis    b) longitudinal axis    c) lateral axis
160. Lateral stability is about the
# a) longitudinal axis   b) normal axis    c) vertical axis
161. All the lift can be said to act through the
# a) center of pressure   b) center of gravity    c) normal axis
162. Longitudinal stability is provided by the
# a) horizontal stabilizer    b) Vertical stabilizer   c) Main plane

163. The concept of thrust is explained by
a) Newton’s 1st law    # b) Newton’s 3rd law    c) Bernoulli’s theorem
164. The camber of an aerofoil section is
# a) the curvature of the median line of the aerofoil
b) the angle of incidence towards the tip of a wing
c) the angle which the aerofoil makes with the relative airflow
165. If the aircraft turns and side-slips
a) the sweepback of the wing will correct the sideslip
# b) the dihedral of the wing will correct the sideslip
c) the keel surface will correct the sideslip
166. Movement of an aircraft about its lateral axis
# a) is pitching   b) is rolling   c) is yawing
167. Induced drag
a) is caused by skin friction
b) results from disturbed airflow in the region of mainplane attachments
# c) is associated with the lift generated by an aerofoil
168. The centre of pressure is
# a) the point on the chord line through which the total resultant lift force on the aerofoil may be said to act
b) the point of maximum pressure on the undersurface of a mainplane
c) the point at which the four forces acting on an aircraft are said to act
169. At what altitude is tropopause
a) 63,000 ft.    # b) 36,000 ft.    c) 57,000 ft.
170. What approximate percentage of oxygen is in the atmosphere
a) 12%    # b) 21%    c) 78%
171. Which has the greater density
# a) air at low altitude    b) air at high altitude    c) it remains constant
172. As air flows over the upper cambered surface of an aerofoil, what happens to velocity and pressure?
a) Velocity decreases, pressure decreases    b) Velocity increases, pressure increases    # c) Velocity increases, pressure decreases
173. What is the force that tends to pull an aircraft down towards the earth?
a) Drag   b) Thrust    # c) Weight
174. Which of the following act in opposition to forward movement?
a) Lift   b) Gravity   # c) Drag
175. The angle at which the chord line of the aerofoil is presented to the airflow is known as
# a) angle of attack   b) angle of incidence    c) resultant
176. The imaginary straight line which passes through an aerofoil section from leading edge to trailing edge is called
a) centre of pressure    b) the direction of relative airflow    # c) the chord line
177. What is the angle between the chord line of the wing, and the longitudinal axis of the aircraft, known as
a) angle of attack    # b) angle of incidence    c) angle of dihedral
178. An aircraft disturbed from its normal flight path, and automatically returns to that normal flight path, without any action on the part of the pilot is known as
# a) aircraft stability    b) aircraft instability    c) aircraft stall
179. Directional control is provided by
a) horizontal stabilizer    # b) rudder    c) elevator
180. About which axis of the aircraft does a rolling motion take place?
a) Normal axis    # b) Longitudinal axis    c) Lateral axis
181. Which motion happens about the lateral axis?
# a) Pitching    b) Yawing    c) Rolling
182. Wing tip vortices create a type of drag known as
a) form drag     # b) induced drag    c) profile drag
183. Which of the following describes the “Empennage”?
a) Nose section of an aircraft, including the cockpit
# b) Tail section of the aircraft, including fin, rudder, tail plane and elevators
c) The wings, including the ailerons
184. At what altitude does stratosphere commence approximately?
a) Sea level     # b) 63,000 ft   c) 36,000 ft
185. When an aircraft is in straight and level unaccelerated flight, which of the following is correct?
# a) Lift and weight are equal, and thrust and drag are equal
b) Lift greater than weight, and thrust greater than drag
c) Lift greater than weight, and thrust is less than drag
186. As the angle of attack is increased (up to the stall point), which of the following is correct?
a) Pressure difference between top and bottom of the wing increases
b) Lift increases    # c) Both a) and b) are correct
187. The fin gives stability about which axis?
a) Lateral axis    # b) Normal axis    c) Longitudinal axis
188. What is the horizontal movement of the nose of the aircraft called?
a) Rolling movement    b) Pitching movement
# c) Yawing movement
189. What type of drag, depends on the smoothness of the body, and surface area over which the air flows?
a) Parasite drag    b) Form drag     # c) Skin friction drag
190. if the nose of the aircraft is rotated about its lateral axis, what is its directional movement?
a) Turning to the left or right     b) Rolling or banking to the left or right    # c) Climbing or diving
191. When air flow velocity over an upper cambered surface of an aerofoil decreases, what takes place?
# a) Pressure increases, lift decreases
b) Pressure increases, lift increases   c) Pressure decreases, lift increases
192. When an aircraft stalls
a) lift and drag increase    b) lift increases and drag decreases
# c) lift decreases and drag increases
193. Wing loading is
a) the maximum all up weight multiplied by the total wing area
# b) the maximum all up weight divided by the total wing area
c) the ratio of the all up weight of the aircraft to its basic weight
194. An aircraft wing with an aspect ration of 6:1 is proportional so that
a) the mean chord is six times the thickness
# b) the wing span is six times the mean chord
c) the wing area is six times the span
195. Upward and outward inclination of a mainplane is termed
a) sweep     # b) dihedral    c) stagger
196. The function of an aircraft fin
# a) is to provide stability about the normal axis
b) is to provide directional control
c) is to provide straight airflow across the rudder
197. Movement of an aircraft about its normal axis
a) is pitching     b) is rolling    # c) is yawing
198. A pressure of one atmosphere is equal to
# a) 14.7 psi    b) 100 millibar    c) 1 inch Hg.
199. The millibar is a unit of
a) atmospheric temperature   b) pressure altitude    # c) barometric pressure
200. With an increase in altitude under I.S.A. conditions the temperature in the troposphere

a) increases   # b) decreases   c) remains constant

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