PPL - Aircraft General Knowledge The test consists of 12 questions. You are given 25 minutes to complete. To pass you need to score 75% Login or personal details are not required. Should you desire to download a Certificate of Accomplishment if you pass, do not forget to fill your name (as you want it written on the Certificate), at the end of the quiz. The crankshaft in a piston engined aircraft: converts rotary motion into reciprocating movement. converts reciprocating movement into rotary motion. controls the clearance of the valves.Take-off Safety Speed may be defined as a target air speed that provides a safe speed margin in excess of the stalling speed where the margin is never less than: 43% of the stall speed. 15% of the stall speed. 20% of the stall speed.When a fuel priming pump is used before starting an engine, the fuel is normally delivered directly to: the carburettor float chamber. the combustion chamber. the induction manifold or inlet valve port.DI or heading indicator is susceptible to apparent drift which is a function of: Rotor speed Instability Earth rotation about its own axis. Internal frictionInformation regarding aircraft that may legally be fuelled with MOGAS may be found in: CAA Airworthiness Notices AICs NotamsA DI may be aligned with the magnetic compass by: housing the caging knob which will automatically align the azimuth DI card with the magnetic compass. using the caging knob to rotate the DI azimuth card when the wings are level. using the caging knob to rotate the DI azimuth card when turning onto a heading.An increase in aircraft weight amongst other things will: cause an increase in the stalling speed. not effect the stalling speed. cause a decrease in the stalling speed.A magneto that inadvertently becomes disconnected from its ignition switch will: cause a dead cut when the other magneto is switched off. cause the engine to continue running when the other magneto's ignition switch is earthed. cause the failure of one plug in each cylinder.Elemental to one complete Otto Cycle is that each piston moves: up once and down once. up twice and down twice. up four times and down four time.The restrictive throat of a carburettor venturi changes the characteristics of the air that passes through it. These are: a drop in ambient pressure and velocity increase. a dynamic pressure increase and a velocity decrease. a dynamic pressure decrease and a velocity increase.The use of take-off flap will result in: greater acceleration. a shorter take-off run. icreased rate of climb to transition altitude.When a magneto is selected OFF, the switch located in the primary circuit: is closed and the circuit is earthed is opened, breaking circuit continuity is opened and the circuit is earthedyou can go back for a final check or press SUBMIT to validate. Name (if you want to download a certificate) Related