022-04 - Gyroscopic instruments

A gyro begins to precess when:

• A force is applied at right angles to its rotational axis.

• The gyro speed drops.

• The gyro speed increases.

• Gyroprecess.

Select the option which correctly describes real wander and apparent wander:

• Real wander is the discernable movement of the spin axis due to the movement of the aircraft over the Earth`s surface.

• Apparent wander is the actual misalignment of the spin axis due to mechanical defects in the gyroscope.

• Real wander is the actual misalignment of the spin axis due to mechanical defects in the gyroscope.

• Real wander is the discernable movement of the spin axis due to the reference frame in space.

On the ground, during a right turn, the rate of turn indicator indicates:

• needle to the right, ball to left

• needle to the right, ball to right

• needle in the middle, ball to left

• needle in the middle, ball to right

The properties of a gyroscope are:

1 – rigidity in space

2 – rigidity on earth

3 – precession

4 – Schuler oscillations

The combination that regroups all of the correct statements is:

• 1, 4

• 2, 3

• 1, 3

• 2, 4

During a turn, when the ball is centred:

• The sum of all forces is parallel to the aircraft vertical axis.

• The sum of all forces is vertical to the aircraft vertical axis.

• The sum of all forces is vertical to earth.

• The aircraft rolls with 3º per second.