Vayudoot Aviation

1. A RADALT provides?

Pressure altitude

Density altitude

Height above terrain

2. A radio altimeter measures?

Pressure Altitude

Height above the ground or water over which the aircraft is flying

True Altitude

3. Radio altimeters are

Crucial to GPWS operations

Not required for GPWS operations

Used to determine altitude above msl

4. Low altitude radio altimeters operate on the _____ wavelength?

Decimetric

Centimetric

Metric

5. For the landing configuration a radio altimeter indicates?

Height of the aircraft above the ground

Height of the flight deck above the ground

Height of the main wheel above the ground

6. If there is a fault in the system the radalt display will?

Freeze

Needle will disappear and an alarm flag will appear, possible accompanied by an audio warning

Turn red and activate an aural warning

7. Radio altimeter gives height indications by

Measuring time diff. of a CW transmitted at changing frequency

Measuring the Doppler frequency shift in transmitted frequency

Measuring time diff. of a CW transmitted at fixed frequency

8. A radio altimeter is?

Aircraft based and indicates pressure altitude

Aircraft based and indicates true height

Aircraft based and indicates true altitude

9. A radio altimeter has a maximum effective height because?

At greater heights from different modulation cycles will overlap

At greater heights the signal will be absorbed by moisture in the air

At greater heights the signal will be too weak

10. How does a radio altimeter work?

Measures the Doppler shift of a pulse transmission

Measures the Doppler shift of a CW transmission

Measures the time from transmission to the reception of a CW frequency. Doppler shift - There has to be relative motion. Hence there is no Doppler shift in Radio Altimeter.

11. Radio altimeters are accurate only within the height range?

Zero to 500 ft

Zero to 50 ft

Zero to 2500 ft

12. The failure of the radio altimeter would cause?

Loss of height data

Loss of pressure altitude data

Loss of density altitude data

Question Bank

Questions for R* BL RADIO ALT

Question Bank

Questions for R* B*L* RADIO ALT

Questions for R* BL RADIO ALT