Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot Licence

Question 1

For the Boeing 737-300/-400/-500 flight-control arrangement, which statements about trimming are correct or incorrect? 1) Longitudinal trim changes the incidence of the horizontal stabilizer through its ballscrew actuator. 2) Aileron trim does not reposition the aileron centring mechanism.

Accepted Answer

1) is correct, 2) is incorrect.

Answer

1) is incorrect, 2) is incorrect.

Answer

1) is incorrect, 2) is correct.

Answer

1) is correct, 2) is correct.

Question 2

Under normal running conditions a magneto draws primary current:

Accepted Answer

From a self-contained electro-magnetic induction system.

Answer

Directly from the aircraft batteries.

Answer

From the booster coil.

Answer

From the aircraft batteries via an inverter.

Question 3

The purpose of the baffles in an aircraft's integral fuel tank is to:

Accepted Answer

Limit fuel sloshing and, where fitted with baffle check valves, restrict outboard flow so that fuel remains available at the boost-pump inlets during manoeuvres

Answer

Prevent mixture of the fuel and hydraulic fluid.

Answer

Prevent the fuel from flowing in the vent lines.

Answer

Prevent overpressure in the tank.

Question 4

How should the viscosity of an approved hydraulic fluid be selected for an aircraft hydraulic system?

Accepted Answer

Low enough to limit flow resistance and power loss, while remaining within the specified range for sealing and lubrication

Answer

As high as possible regardless of flow resistance

Answer

As high as possible because this always reduces pumping power

Answer

As low as possible even if sealing and lubrication become inadequate

Question 5

A warning device alerts the crew in case of an excessive cabin altitude. This warning must be triggered on reaching the following altitude:

Accepted Answer

10000 ft (approx. 3000 m)

Answer

14000 ft (approx. 4200 m)

Answer

12000 ft (approx. 3600 m)

Answer

8000 ft (approx. 2400 m)

Question 6

A spring-return single-action hydraulic actuator:

Accepted Answer

Is powered in one direction only by hydraulic power, the return movement being under spring force.

Answer

Travels one direction under one application of hydraulic power and in the opposite direction under a second application of hydraulic power.

Answer

Cannot be used for variable position operations as it is designed to lock in the extremities of travel.

Answer

Is a one shot actuator used for emergency systems only.

Question 7

An oxygen regulator has 3 controls - a power lever: ON/OFF - an 'O2' lever: NORMAL/100% - an emergency lever: ON/OFF. Among the following statements, the correct proposition is:

Accepted Answer

The power lever on ON, and, the 'O2' lever on NORMAL allows the oxygen to enter the regulator and enables breathing of a mixture of air/oxygen according to altitude.

Answer

With the EMERGENCY lever on OFF, in an emergency situation, one cannot use the oxygen mask to breathe.

Answer

The 'O2' lever on ON enables breathing of the over-pressure oxygen at a constant flow rate.

Answer

The EMERGENCY lever on ON enables breathing of pure oxygen at ambient pressure.

Question 8

The function of a fusible plug is to

Accepted Answer

Protect the tyre against explosion due to excessive temperature.

Answer

Protect the brake against brake disk fusion due to excessive temperature.

Answer

Function as a special circuit breaker in the electric system

Answer

Protect against excessive pressure in the pneumatic system.

Question 9

The hydraulic device similar to an electronic diode is a:

Accepted Answer

Check valve.

Answer

Flow control valve.

Answer

Distribution valve.

Answer

Shutoff valve.

Question 10

In a naturally aspirated piston engine climbing at an unchanged throttle setting, with the mixture appropriately adjusted, power generally decreases because of decreasing:

Accepted Answer

Air density.

Answer

Engine temperature.

Answer

Humidity.

Answer

Temperature.

Exam questions Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot Licence

ATPL - Airline Transport Pilot Licence: Aircraft General Knowledge - Airframe, Systems, Powerplant 10 Questions no time limit

Exam questions Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot Licence

ATPL - Airline Transport Pilot Licence: Aircraft General Knowledge - Airframe, Systems, Powerplant 10 Questions no time limit

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