Question Bank

1. A gyro-magnetic compass or magnetic heading reference unit is an assembly which always consists of : 1- a directional gyro 2- a vertical axis gyro 3- an earth's magnetic field detector 4- an azimuth control 5- a synchronising control The combination of correct statements is

2. The input signal of the amplifier of the gyro-magnetic compass resetting device originates from the

3. A flux valve senses the changes in orientation of the horizontal component of the earth's magnetic field : 1- the flux valve is made of a pair of soft iron bars 2- the primary coils are fed AC voltage 3- the information can be used by a “flux gate” compass or a directional gyro 4- the flux gate valve casing is dependent on the aircraft three inertial axis 5- the accuracy of the value of the magnetic field indication is less than 0.5% The combination of correct statements is

4. The gyro-magnetic compass torque motor

5. The heading information originating from the gyro-magnetic compass flux valve is sent to

6. Heading information from the gyro-magnetic compass flux gate is transmitted to the

7. A slaved directional gyro derives its directional signal from