2
1-11. What part of a synchro provides a point
for external connections?
1. The terminal board
2. The slip ring
3. The stator
4. The brush
1-12. Which of the following terms is defined
as the amount of load a machine can
turn?
1. Radian force
2. Load factor
3. Torque
4. Tension
1-13. Which of the following units should be
used in measuring the amount of turning
force of a synchro?
1. Ounces
2. Pounds
3. Foot-pounds
4. Ounce-inches
1-14. An overloaded synchro will probably
exhibit which of the following
conditions?
1. Overspeed
2. Oscillation
3. Excessive temperature
4. Noisy operation
1-15. A synchro receiver has which of the
following characteristics that is NOT
found in an ordinary transformer?
1. A primary that can rotate in relation
to the secondary
2. A primary magnetically coupled to
the secondary
3. A step-up turns ratio
4. An air core
1-16. When a synchro transmitter is in the
zero-degree position, the rotor is aligned
in what manner?
1. With winding S1
2. With winding S2
3. With winding S3
4. Between winding S1 and S2
1-17. Maximum voltage is induced in a stator
winding of a synchro transmitter when
the rotor and the stator winding have
what angle between them?
1. 0 degrees
2. 30 degrees
3. 60 degrees
4. 90 degrees
1-18. Which of the following factors does
NOT affect the amplitude of the voltage
induced in a stator winding of a synchro
transmitter?
1. The angular displacement between
the rotor and stator
2. The amplitude of the primary voltage
3. The speed of data transmission
4. The turns ratio of the synchro
1-19. Damping is necessary for which of the
following synchro devices?
1. Receiver
2. Transmitter
3. Control transformer
4. Differential transmitter
1-20. The primary purpose of damping is to
reduce which of the following conditions
in a synchro device?
1. Readings 180º out of phase
2. Overheating
3. Oscillating
4. Each of the above
