152 At the stall, the Centre of Pressure (C of P):
O moves aft of the Centre of Gravity (C of G).
O dissipates.
O moves forward of the Centre of Gravity (C of G).
153 How are slats generally extended in light aircraft?
O Aerodynamically.
O By counter-balance weights.
O By springs.
154 Which of the following instruments are connected to the static pressure source?
O Altimeter, Vertical Speed Indicator, Airspeed Indicator.
O Direction Indicator, Vertical Speed Indicator, Airspeed Indicator.
O Turn and Slip, Artificial Horizon, Airspeed Indicator.
155 Warm air in comparison with colder air:
O can hold more water vapour.
O has the same relative humidity.
O has a higher relative humidity
156 The International Standard Atmosphere (ISA) is defined as:
O Sea level pressure 1013.2 mb, temperature + 15°C, lapse rate of 1.98°C per 1000 feet and sea level density of 1225 gm/m3.
O Sea level pressure 1013.2 mb, temperature +15°C, lapse rate and density do not apply.
O Sea level pressure 1013.2 mb, temperature O°C, lapse rate of 1.98°C per 1000 feet and sea level density of 1225 gm/m3.
157 Whilst checking the magnetos, no drop is observed from either of them. What does this indicate?
O The aircraft should not be flown, as the magnetos may be permanently 'live'.
O One magneto is definitely not working.
O Good magneto timing
158 At the point of stall, use of ailerons:
O may stall one wing.
O will always work as normal.
O has no effect owing to the low airspeed.
159 Heavy landings and large taxing loads are primarily absorbed by:
O the structure of the aircraft
O the nose oleo assembly.
O the main wheel tyres.
160 What is the function of the fin on an aeroplane?
O Assists the aircraft's directional stability.
O Helps turn the aircraft.
O It aids in the balancing of forces between thrust and drag.
161 Carburettor icing is most likely to form in which of the following conditions?
O Temperature : +12 °C Relative Humidity : 95%
O Temperature : -5 °C Relative Humidity : 30%
O Temperature : 0°C Relative Humidity : 30%
162 An altimeter with the sub scale set to the QNH, will read:
O the displacement of the aircraft above mean sea level.
O the barometric pressure of the day..
O zero when the aircraft is on the ground.
163 How is the battery charging current controlled?
O It is controlled automatically, depending on the battery voltage.
O It is a constant value and is controlled by the alternator output.
O It is controlled by the number of cells in the battery.
164 The directional gyro indicator (DGI):
O requires re-alignment by the pilot at regular intervals.
O does not require re-alignment as it is linked to the magnetic compass.
O is always aligned with magnetic North.
165 Whilst in flight the engine RPM drops significantly. You prudently suspect carburettor icing. However on application of full hot air, the engine initially runs more roughly. What should you do?
O Leave the carburettor in the 'hot' position, as it is just the water from the melting ice that is causing the initial rough running.
O Return the carburettor heat to mid-range.
O Return the carburettor heat to cold, as the plugs are fouled.
166 At higher altitudes:
O True airspeed is greater than Indicated airspeed.
O True airspeed is less than Indicated airspeed.
O True airspeed is equal to Indicated airspeed.
167 Why is a control lock used?
O To lock the flying controls when the aircraft is parked.
O To lock the aircraft trim controls in position.
O To lock the aircraft flying controls in steady straight and level flight.
168 What does a Pitot Head sense?
O Both Static and Dynamic pressure
O Dynamic pressure only.
O Static pressure only.
169 An aircraft that is flying in the Northern hemisphere accelerates on an Easterly heading. What will the Magnetic Compass indicate?
O An apparent turn to the North.
O An apparent turn to the South.
O No apparent change will be indicated.
170 What flying surface on the aircraft provides directional stability?
O The tail fin.
O The wings.
O The horizontal stabilizer
171 Which of the following instruments are gyro-driven?
O Artificial Horizon, Turn Coordinator, Direction Indicator.
O Artificial Horizon, Direction Indicator, Compass.
O Direction Indicator, Altimeter, Artificial Horizon.
172 What is the purpose of a trim tab?
O To zero the control loads on the pilot for the flight attitude required.
O To assist the pilot in initiating movement of the controls.
O To provide 'feel' when flying at high airspeeds.
173 How are the cylinders of air cooled engines kept at uniform pressure ?
O By the use of baffles.
O By the use of cowl flaps
O By the use of oil cooler shutters.
174 What is used to prevent a weak cut when the throttle is rapidly opened?
O The accelerator pump.
O The idling jet.
O The butterfly valve.
175 Ignition in the engine cylinders may only occur during which of the following strokes ?
O the compression stroke
O the induction stroke
O the power stroke
176 What is the consequence of carburetor icing on a normally aspirated engine with a fixed pitch propeller ?
O A fall in engine RPM
O A rise in engine RPM and a fall in the oil pressure
O A rise in engine RPM
177 What problem would occur by leaving, a piston engine running at idle RPM for excessive periods?
O fouling of the plugs
O the engine burning too much oil.
O extreme cooling of the cylinder
178 Maintaining altitude in a turn, the angle of attack is:
O greater than for straight and level flight.
O less than that for straight and level flight.
O the same as that for straight and level flight.
179 What is a stabilator?
O A movable, combined horizontal stabiliser and elevator.c
O A control surface that incorporates the elevators and ailerons.
O A fixed tail plane and movable elevator.
180 An aircraft in straight and level flight has the tendency to pitch nose down. How can this be overcome?
O By the elevator being moved up and the trim tab moved down.
O By the elevator being moved up and the trim tab moved up.
O By the elevator being moved down and the trim tab moved up.
181 What is dihedral?
O The upward inclination of the wings from the root to the tip.
O The downward inclination of the wings from the root to the tip.
O The sweep of the wings from the root to the tip.
182 For an aircraft in steady, level flight, if the tailplane is producing a download, the Centre of Pressure must be:
O aft of the Centre of Gravity.
O coincident with the Centre of Gravity.
O forward of the Centre of Gravity.
183 In a steady climb at a constant airspeed:
O the power available must exceed the power required.
O the power available must be less than the power required.
O the power available must be equal to the power
184 You are approaching to land after a heavy aircraft is departing. You should:
O touch down well short of the heavy aircraft's lift off point.
O touch down well ahead of the heavy aircraft's lift off point.
O touch down at the same point as the heavy aircraft's lift off point.
185 When aquaplaning:
O wheel brakes have no effect.
O wheel brakes have full effect.
O wheel brakes have some effect
186 How do flaps affect the take-off ground run?
O They reduce the ground run.
O They increase the ground run.
O They have no effect on the ground run.
187 What highly toxic gas is produced by the aircraft engine?
O Carbon monoxide.
O Carbon dioxide.
O Sulphur dioxide.
188 What is defined as the optimum angle of attack?
O The angle of attack at which the lift : drag ratio is greatest.
O The angle of attack at which the lift : drag ratio is least.
O The maximum angle of attack at which the aircraft can fly without stalling
189 If the elevators are moved on an aircraft in flight, the aircraft:
O pitches.
O yaws.
O rolls.
190 What is the Standard sea level pressure setting?
O 1013.25 mb.
O 1003.52 mb.
O 1031.25 mb.
191 What is dihedral?
O The upward and outward inclination of the main plane to the horizontal.
O The angle between the main plane and the normal axis of the aircraft.
O The angle between the main plane and the longitudinal axis of the aircraft.
192 How is a generator failure indicated to the pilot?
O A decreasing, or discharging ammeter reading and a red warning light.
O Only partial electrical services.
O A decreasing voltmeter reading, and a red warning light extinguishing.
193 At what point in the aircraft oil system does the oil temperature gauge measure from ?
O The oil being delivered to the engine.
O The oil cooler.
O The oil reservoir
194 Which of the following best describes VNE?
O The maximum indicated airspeed at which the aircraft may be flown in any circumstance
O The maximum indicated airspeed at which flight manoeuvres may be conducted.
O The maximum indicated airspeed at which the aircraft may be flown in level flight and may be exceeded for certain flight manoeuvres.
195 If the temperature and pressure remain constant, an increase in humidity will cause density to :
O decrease.
O remain unchanged
O increase.
196 How is the chord line of an aerofoil defined?
O A straight line through the centres of curvature at the leading and trailing edges of the aerofoil section.
O A straight line which touches the curvature of the top surfaces of the leading and trailing edges tagentially.
O A line joining the leading and trailing edges of the aerofoil section, each point of which is equidistant from the upper and lower surfaces of the section.
197 How does the aeroplane attitude change by the deflection of the elevators?
O Pitches.
O Rolls.
O Yaws.
198 What is the standard sea level pressure?
O '1013.25 mb
O '1003.52 mb
O '1031.25 mb
199 What is dihedral angle?
O The upward and outward inclination of the mainplane to the horizontal.
O The angle between the mainplane and the normal axis of the aircraft.
O The angle between the mainplane and the longtitudinal axis of the aircraft.
200 What is the approximate decrease in temperature with height in the International Standard Atmosphere (ISA)
O '2oC per 1000 feet.
O '3oC per 1000 feet.
O '1.98oC per 1000 meters.
201 What are control surfaces fitted with to prevent flutter?
O 'Mass balances
O 'Anti- balance tabs
O 'Inset hinges
