GYROSCOPES

Question 1

1. Rigidity of a gyroscope depends on:

Answer 1

d. mass, radius of gyration and speed of rotation.

Question 2

2. A force is applied to deflect a gyroscope. If the RPM of the gyro is then doubled the precession rate will:

Answer 2

c. decrease.

Question 3

3. In gyroscopic theory the term ‘topple’ is defined as:

Answer 3

c. wander, real or apparent, in the vertical plane.

Question 4

4. A force applied to the spinning axis of a rotor is precessed:

Answer 4

a. through 90° in the direction of spin of the rotor.

Question 5

6. Real wander of a gyro can be caused by:

Answer 5

a. asymmetrical friction at the spinning axis.

Question 6

7. A gyro with only one degree of freedom is known as a:

Answer 6

d. rate gyro.

Question 7

8. A perfectly balanced space gyro at the equator has its spin axis aligned with true north. After 6 hours the axis will be aligned with:

Answer 7

c. true north direction.

Question 8

9. The main advantage of electric gyros are:

Answer 8

c. high RPM, high moment of inertia, rapid build-up of speed, constant RPM.

Question 9

10. Apparent wander of a gyro can be caused by:

Answer 9

a. rotation of the earth.