Aircraft General Knowledge - Instrumentation - ATPL - Airline Transport Pilot license

Question 1

Absolute pressure is:

Accepted Answer

Measured from zero pressure (vacuum).

Answer

The amount the pressure has been raised with reference to an initial level.

Answer

The difference between two pressures.

Answer

Pressure in a confined area.

Question 2

The range of a low altitude radio altimeter is:

Accepted Answer

2 500 ft.

Answer

500 ft.

Answer

10 000 ft.

Answer

Greater than 10 000 ft.

Question 3

The principle of capacity gauges is based on the:

Accepted Answer

Capacitance variation of a given capacitor with the type of dielectric.

Answer

Capacitance variation by the volume measurement carried out on the sensor.

Answer

Current variation in the Wheatstone bridge.

Answer

Flow rate and torque variation occurring in a supply line.

Question 4

A laser gyro consists of:

Accepted Answer

A laser generating two light waves.

Answer

Two moving cavities provided with mirrors.

Answer

2 electrodes (anode and cathode).

Answer

A gyro with 2 degrees of freedom.

Question 5

When an aircraft has turned 360 degrees with a constant attitude and bank, the pilot observes the following on a classic artificial horizon:

Accepted Answer

Attitude and bank correct

Answer

Too much nose-up and bank too high

Answer

Too much nose-up and bank correct

Answer

Too much nose-up and bank too low

Question 6

The elements which take part in the local vertical alignment of an inertial strap-down unit are:

Accepted Answer

The accelerometers.

Answer

The accelerometers and gyroscopes.

Answer

The flow inductors.

Answer

The gyroscopes.

Question 7

If the static source to an altimeter becomes blocked during a climb, the instrument will:

Accepted Answer

Continue to indicate the reading at which the blockage occurred

Answer

Under-read by an amount equivalent to the reading at the time that the instrument became blocked

Answer

Gradually return to zero

Answer

Over-read

Question 8

True Air Speed (TAS) is equal to Equivalent Air Speed (EAS) only if:

Accepted Answer

P = 1013.25 hPa and OAT = 15°C

Answer

P = 1013.25 hPa, OAT = 15°C and TAS > 200 kt.

Answer

P = 1013.25 hPa and OAT = 273° K.

Answer

P = 1013.25 hPa, OAT = 15°C and TAS < 200 kt.

Question 9

The data supplied by a radio altimeter:

Accepted Answer

Indicates the distance between the ground and the aircraft.

Answer

Is used only by the radio altimeter indicator.

Answer

Concerns only the decision height.

Answer

Is used by the automatic pilot in the altitude hold mode.

Question 10

An inertial reference and navigation system is a "strapdown" system when:

Accepted Answer

The gyroscopes and accelerometers are part of the unit's fixture to the aircraft structure.

Answer

Gyros and accelerometers need satellite information input to obtain a vertical reference.

Answer

Gyros and accelerometers are mounted on a stabilised platform in the aircraft.

Answer

Only the gyros, and not the accelerometers, are part of the unit's fixture to the aircraft structure.

Exam questions Aircraft General Knowledge - Instrumentation - ATPL - Airline Transport Pilot license

ATPL - Airline Transport Pilot license: Aircraft General Knowledge - Instrumentation 10 Questions no time limit

Exam questions Aircraft General Knowledge - Instrumentation - ATPL - Airline Transport Pilot license

ATPL - Airline Transport Pilot license: Aircraft General Knowledge - Instrumentation 10 Questions no time limit

You have reached the free limit

Upgrading to PRO gives you access to: