Results
Q1. The purpose of the slaving torque motor is:
to produce a precessive force in order to align the gyro with the earth’s magnetic field.
Q2. The purpose of the flux-valve is:
to sense the direction of the earth’s magnetic field relative to the airplane.
Q3. In a Slaved Gyro Compass System the output of the flux-valve is fed to:
the stator in the slaved gyro control.
Q4. A failed RMI rose is locked on 090° and the ADF pointer indicates 225°. The relative bearing to the station is :
135°
Q5. The heading information originating from the gyromagnetic compass flux valve is sent to the:
error detector.
Q6. The input signal of the amplifier of the gyromagnetic compass resetting device originates from the:
error detector.
Q7. A gyromagnetic compass or 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:
1,3,5
Q8. Heading information given by a gyro platform, is given by a gyro at:
2 degrees-of-freedom in the horizontal axis
Q9. The gyromagnetic compass torque motor:
causes the directional gyro unit to precess
Q10. While flying, a red flag labelled “HDG” appears in the indicator (HSI) of a Slaved Gyro Compass System. This indicates that:
The flux valve is not supplying reliable information to the compass system.
Q11. The “sensor part” of the flux-valve is:
The three pick-up coils.
Q12. The principal advantage of a gyromagnetic compass (slaved gyro compass) is:
It combines the north-seeking ability of the magnetic compass with the stability of the direction indicator.
Q13. Heading information from the gyromagnetic compass flux gate is transmitted to the:
error detector.
Q14. A slaved directional gyro derives it’s directional signal from:
the flux valve.
Q15. 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 A.C. voltage (usually 487.5 Hz) 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 axes
2.3.05
