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