Gyroscopes – 2 MCQ’s

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This set of Avionics Multiple Choice Questions & Answers (MCQs) focuses on “Gyroscopes – 2″.

1. Why is a tuning fork gyro better than the vibrating cylinder type gyro?
a) Reduce base motion
b) Low power consumption
c) Easy to manufacture
d) Low run up time

2. Which type of gyros works by calculating the difference in time taken by light to travel in a closed circle?
a) Ring laser gyro
b) MEMS gyro
c) Floated gyro
d) Dry tuned gyro

3. Which of the following systems do not use MEMS gyro?
a) Space launch vehicles
b) Flight control systems
c) Missile guidance
d) Car stability systems

4. What is the basic principle by which laser gyros work?
a) Coriolis effect
b) Conservation of momentum
c) Sagnac effect
d) Mass conservation

5. A fiber optic gyro measures rotation using the _______ of the two beams?
a) Intensity difference
b) Resonance
c) Interference intensity
d) Wavelength difference

6. The emission of photons by the gas medium that fills the RLG cavity is called as?
a) Laser discharge
b) Spontaneous discharge
c) Spontaneous emission
d) Laser emission

7. Which of the following type of gyro works by counting the nodes of standing waves of laser beams?
a) Ring laser gyro
b) Optical fiber gyro
c) Dry tuned gyro
d) Floated gyro

8. In two mode RLGs, only linearly polarized modes can be resonant in the cavity.
a) True
b) False

9. What is the cause of lock-in phenomena in RLG?
a) Backscatter
b) Low intensity
c) High intensity
d) Low standing wave ratio

10. Which method uses a turntable in RLG to reduce lock-in errors?
a) Intensity control
b) Rate biasing
c) Using mechanical dither
d) Random rate fixing

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