Results
Q1. The directional gyro keeps its rotation axis aligned toward:
a point in space.
Q2. A laser gyro consists of:
a laser generating two light waves
Q3. Apparent drift in a direction indicator is:
7 1/2°/hour at 30°N and 30°S, and zero at the equator
Q4. Deviation compensation in a flux gate compass is done:
Mechanically
Q5. Compared with a conventional gyro, a laser gyro:
has a longer life cycle
Q6. A rate integrating gyro is a detecting element used in: 1. An inertial attitude unit 2. An automatic pilot 3. A stabilizing servo system 4. An inertial navigation system 5. A rate-of-turn indicator. The combination of correct statements is:
1,4.
Q7. Failure of the electrical supply to an electrically driven direction indicator may be indicated by:
A red warning flag.
Q8. Rigidity in a gyroscope is:
the tendency it has to remain in its plane of rotation and resist attempts to alter its position
Q9. What is the main cause of precession?
Bearing friction.
Q10. Precession in a gyroscope is:
the reaction at 90 degrees in direction of rotation caused by a applied force to the spinning wheel
Q11. The rotational speed of an air-driven gyro is normally:
9000-12000 RPM
Q12. In the building principle of a gyroscope, the best efficiency is obtained through the concentration of the mass:
on the periphery and with a high rotation speed.
Q13. The operating principle of the pendulous vane unit erecting system is:
The air flow reaction through the open vanes.
Q14. How is vacuum provided for the air-driven gyro instruments?
By an engine-driven pump
Q15. Among the systematic errors of the “directional gyro”, the error due to the earth rotation make the north reference turn in the horizontal plane. At a mean latitude of 45°N this reference turns by:
10.5°/hour to the right.
Q16. Why do some gyro instruments topple when the aircraft is placed in an extreme attitude?
because the gimbals reach their limiting stops
Q17. Erection systems are provided for the purpose of:
Erecting and maintaining the gyro in its vertical position.
Q18. Air-driven gyro rotors are prevented from spinning too fast by the:
vacuum relief valve
Q19. The basis properties of a gyroscope are: 1. The gyro’s weight. 2. The rigidity in space. 3. The inertia. 4. The high RPM. 5. The precession. The combination of correct statements is:
2,5
Q20. The error in a direction indicator caused by the convergence of the meridians in northerly and southerly latitudes is called:
transport error
