The main reason for using a collimated display in HUD is _______ - Avionics MCQ

Aeronautical & Aerospace Engineering : Avionics - Quiz(MCQ)

The main reason for using a collimated display in HUD is _______

A)

Wide view of display

B)

Fast screen refresh rates

C)

More information can be displayed

D)

Information displayed is focused at infinity

Correct Answer : Information displayed is focused at infinity

Explanation : A collimated display is a display in which the rays of light emitted/reflected is parallel to the display. Since the rays of light are parallel, its focus is at infinity, thus the pilot is able to view the information on the HUD without changing his focus from the outside world scene without parallax error. Also, the ray of light from a collimated display would not disperse with distance.

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.

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