Pressure Measurements MCQ’s

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This set of Avionics Multiple Choice Questions & Answers (MCQs) focuses on “Pressure Measurements”.

1. The absolute pressure of the still air surrounding the aircraft is called as______
a) Static pressure
b) Stagnation pressure
c) Constant pressure
d) Absolute pressure

2. Where are self-aligning pitot tubes used?
a) Bomber planes
b) Commercial airliners
c) High angle of attack fighter aircraft
d) General aviation

3. The different probes that disturb the airflow is called ______
a) Air data probe
b) Data probe
c) Intrusive probe
d) Static probes

4. What is the difference between the actual free stream pressure and the measured static pressure called?
a) Static error
b) Static defect
c) Free stream error
d) Dynamic pressure

5. What are the tubes in the aircraft that carry the air pressure to the instruments is called as?
a) Pneumatic plumbing
b) Pressure lines
c) Pressure tubes
d) Blue lines

6. The impact pressure and the dynamic pressure are the same.
a) True
b) False

7. Which of the following is done to reduce the static defect?
a) Streamlined configuration of the whole aircraft
b) Less weight as payload
c) Wind tunnel tests to find spots of body-flow interference
d) Deploy Flaps and slats

8. What is the difference between the static pressure and the stagnation pressure when the aircraft is stationary?
a) Infinite
b) Any random value
c) No difference
d) Static pressure

9. At supersonic speeds, a normal pitot tube cannot be used for speed measurements.
a) True
b) False

10. Which of the following instruments use the pitot-static probe for its input?
a) Airspeed indicator
b) Altitude indicator
c) Vertical speed indicator
d) Attitude indicator

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