Which of the following is not true with respect to HMD (Helmet Mounted Display)? - Avionics MCQ

Aeronautical & Aerospace Engineering : Avionics - Quiz(MCQ)

Which of the following is not true with respect to HMD (Helmet Mounted Display)?

A)

HMD comprises of collimated display

B)

The flight parameters are displayed in the pilot’s line of sight

C)

Using HMD the pilot has a FOV (Field OF Vision) of 360° without moving his head

D)

The flight parameters are displayed in the visor of the helmet

Correct Answer : Using HMD the pilot has a FOV (Field OF Vision) of 360° without moving his head

Explanation : The FOV of an HMD is 360° in the sense that the pilot can look around(by moving his head) in all direction and still view the flight parameters in his line of sight. If the pilot does not move his head the FOV the HMD provides ranges from35° to 50° depending upon the type of aircraft and its role.

Recently Updated in Avionics Questions

Only the pilot of a particular aircraft can use its DVI control system?

A)

True

B)

False

C)

Can Not Say

D)

None of the above

Correct Answer : Option (B) : False

Explanation : The DVI control system is a universal system which can recognize the voice of anyone if spoken clearly. This is done for maintenance purposes and for an emergency.

The DVI control system need not be super sensitive to the voice of the pilot.

A)

True

B)

False

C)

Can Not Say

D)

None of the above

Correct Answer : Option (B) : False

Explanation : The DVI control system must be super sensitive to the voice of the pilot so that it can be operated in cockpit noise environment. In a fast jet combat aircraft, the background noise levels can be very high.

What are isolated word recognizers?

A)

System that is not fully voice commanded

B)

Systems that can recognize anyone’s voice

C)

Systems that require a pause between each word to recognize

D)

Systems that only accept one-word command

Correct Answer : Option (C) : Systems that require a pause between each word to recognize

Explanation : An isolated word recognizer requires pauses between each word said as it cannot recognize fully connected speech. The DVI control in an aircraft must not be an isolated voice recognizer to ensure smooth man-machine interface.

Advertisement