Instrumentation Transducers Questions and Answers – Gyroscope

This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Gyroscope”.

1. Axis of rotation of wheel in gyroscope is called ____________
a) Spin axis
b) Vertical axis
c) Horizontal axis
d) Angular axis

Explanation: Spin axis is the axis of rotation of the wheel in gyroscope.

2. Gymbels are used for _____________
a) Improving rotational speed
b) Supporting gyro wheel
c) As damping agent
d) None of the mentioned

Explanation: Gymbels are a part of gyroscope, which is used for supporting gyro wheel of a gyroscope.

3. Which of the following represents angular momentum of gyro wheel?
a) jss
b) js
c) js/Ωs
d) None of the mentioned

Explanation: Angular momentum of gyro wheel is the product of moment of inertia (js) and Angular velocity (Ωs).

4. Turning of the rotor about a third axis when a torque transverse to spin axis is known as ____________
a) Transverse shear
b) Transverse stress
c) Precession
d) Face shear

Explanation: If a torque is applied about an axis transverse to spin axis, the rotor turns about a third axis which is in quadrature to both. This tilting motion is known as precession.

5. Increase in angular momentum decreases error.
a) True
b) False

Explanation: increase in angular momentum produces a decrease in precession velocity which is the ratio of τf and Hs (Angular momentum), which in turn decreases error.

6. Which of the following represents condition for ideal gyroscope?
a) Infinite drift of spin axis
b) Infinite speed for gyro meter
c) Very low drift of spin axis
d) None of the mentioned

Explanation: For an ideal gyroscope, drift of spin axis should be very low, in the order of 10in 12 hours.

7. Which of the following represents characteristic of a rate gyro?
a) More sensitive
b) Soft spring of lower value for K
c) High angular momentum
d) All of the mentioned

Explanation: Rate gyro is a device which is more sensitive, has a soft spring arrangement with a lower value of spring constant K and High angular momentum.

8. Which of the following represents integrating type gyroscope?
a) Zero order system
b) First order system
c) Second order system
d) Third order system

Explanation: Transfer function of integrating type gyroscope is represented by (Hs/B)/(1+S2), from which it is clear that, integrating type gyro is a first order system.

9. Integrating type gyroscope has high sensitivity due to ______________
a) High Hs
b) Lower damping coefficient
c) Both high Ha and lower damping coefficient
d) None of the mentioned

Explanation: Both high angular momentum and lower damping coefficient help to provide high sensitivity for integrating type gyroscope.

10. Rate gyroscope is a _____________
a) Zero order system
b) First order system
c) Second order system
d) Third order system

Explanation: Transfer function of gyroscope is given by(Hs/Ks)/(S2n2 + 2Sξ/ωn+1) from which it is clear that, rate gyroscope is a second order system.

Sanfoundry Global Education & Learning Series – Instrumentation Transducers.

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