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Principals of Synchros, Servos, and Gyros Quiz:

Quiz Questions:

1.	______________ is a component in a servo system that measures position and converts the measurement into a form convenient for transmission as a feedback signal

		Position Sensor
		Servo system

2.	A mechanical or electrical technique used in synchro receivers to prevent the rotor from oscillating or spinning is called ______________.

		Damping
		Demodulator

3.	Inertia is the physical tendency of a body in motion to remain in motion and a body at rest to remain at rest unless acted upon by an outside force.

		True
		False

4.	Rotor is the tendency of the spin axis of a gyro wheel to remain in a fixed direction in space if no force is applied to it.

		True
		False

5.	____________ is the effect of the Earth's rotation on a gyro, which causes the spinning axis to appear to make one complete rotation in one day.

		Apparent Drift
		Apparent Precession

6.	The frequency response of a servo is the range of frequencies to which the system is able to respond in moving the load.

		True
		False

7.	A standard synchro position, with a definite set of stator voltages, which is used as the reference point for alignment of all synchro units is known as _________________.

		Electrical Zero
		Electrical Lock

8.	The process of adjusting a synchro to its electrical zero position is called zeroing.

		True
		False

9.	Bandwidth is a range of frequencies a servo amplifier can amplify without causing unacceptable distortion to the input signal.

		True
		False

10.	_____________ is a mechanical device containing a spinning mass mounted so that it can assume any position in space.

		Gyroscope
		Gimbal

11.	Synchro System is an electromagnetic device that uses one or more saturable reactors to obtain a large power gain.

		True
		False

12.	Correspondence is the term given to the positions of the rotors of a synchro transmitter and a synchro receiver when both rotors are on 0 or displaced from 0 by the same angle.

		True
		False

13.	________________ is the delay in a servo system between the application of the input signal and the actual movement of the load.

		Time Lag
		Torque

14.	What does TDR stand for?

		Torque Differential Receiver
		Time Differential Receiver
		Translation Differential Receiver
		None of the above

15.	Degree of freedom is known as the number of axes about which a gyro is free to precess.

		True
		False

16.	________________ is defined as the rotation of the spin axis of a gyro in response to an applied force.

		Precession
		Magnetism

17.	______________ is the tendency of the spin axis of a gyro wheel to remain in a fixed direction in space if no force is applied to it.

		Rigidity
		Rotation

18.	List the two general classifications of synchro systems?

		Torque and Control
		Torque and Load
		Control and Load
		None of the above

19.	The measure of torque is the product of the applied force and the distance between the point of application and the center of rotation.

		True
		False

20.	________________ is a small motor like device that operates like a variable transformer and is used primarily for the rapid and accurate transmission of data among equipments and stations.

		Synchro
		Tine Lag