Results
Q1. Air-driven gyro rotors are prevented from spinning too fast by the:
vacuum relief valve
Q2. Precession in a gyroscope is:
the reaction at 90 degrees in direction of rotation caused by a applied force to the spinning wheel
Q3. 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.
Q4. A laser gyro consists of:
a laser generating two light waves
Q5. What is the main cause of precession?
Bearing friction.
Q6. Rigidity in a gyroscope is:
the tendency it has to remain in its plane of rotation and resist attempts to alter its position
Q7. The error in a direction indicator caused by the convergence of the meridians in northerly and southerly latitudes is called:
transport error
Q8. Failure of the electrical supply to an electrically driven direction indicator may be indicated by:
A red warning flag.
Q9. 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.
Q10. Why do some gyro instruments topple when the aircraft is placed in an extreme attitude?
because the gimbals reach their limiting stops
Q11. Compared with a conventional gyro, a laser gyro:
has a longer life cycle
Q12. The rotational speed of an air-driven gyro is normally:
9000-12000 RPM
Q13. The directional gyro keeps its rotation axis aligned toward:
a point in space.
Q14. How is vacuum provided for the air-driven gyro instruments?
By an engine-driven pump
Q15. 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.
Q16. Apparent drift in a direction indicator is:
7 1/2°/hour at 30°N and 30°S, and zero at the equator
Q17. Deviation compensation in a flux gate compass is done:
Mechanically
Q18. The operating principle of the pendulous vane unit erecting system is:
The air flow reaction through the open vanes.
Q19. Erection systems are provided for the purpose of:
Erecting and maintaining the gyro in its vertical position.
Q20. 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