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Aeronautical & Aerospace Engineering : Avionics - Quiz(MCQ)
What is the weight the pilot will feel on his head while executing a 9g maneuver with an HMD helmet of weight 800g?
A)
0.72kg
B)
7.2kg
C)
9kg
D)
70.06kg

Correct Answer :   7.2kg

Explanation : 800grams = 0.8 kg, during a 9g turn the pilot will experience a gravitational force 9 times that of a normal person at Earth surface. The total weight felt by the pilot = 0.8 x 9 = 7.2kg. Typical HMD helmets weigh around 1kg and at 9g the weight felt by the pilot will be 9kg which is just acceptable.

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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