Synchros, Servos And Gyros Principles: Exam!

103 Questions | By BATANGMAGALING | Last updated: Mar 20, 2022 | Total Attempts: 597

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Synchros, Servos And Gyros Principles: Exam! - Quiz

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1.

Which of the following terms accurately describes a synchro?
- A.
  
  Position-sensing
- B.
  
  Electromechanical
- C.
  
  Rotary
- D.
  
  Each of the above
2.

What are the two general classifications of synchro systems?
- A.
  
  Torque and load
- B.
  
  Torque and control
- C.
  
  Load and control
- D.
  
  Load and lock
3.

What is the difference in application between the two classifications of synchros?
- A.
  
  Light versus heavy load
- B.
  
  Mechanical versus electrical Output
- C.
  
  Circular versus straight-line motion
- D.
  
  High-frequency versus low-frequency operation
4.

Which of the following types of synchro devices provides a mechanical output?
- A.
  
  A control transformer
- B.
  
  A torque receiver
- C.
  
  A torque transmitter
- D.
  
  A control transmitter
5.

A 115-volt, 400-Hz torque transmitter with a diameter of 2.36 inches will have what military standard designation code?
- A.
  
  115 V-23CT6
- B.
  
  115 V-24TT4
- C.
  
  23TD4
- D.
  
  24TX4
6.

A 3.5-inch diameter differential receiver will have what Navy prestandard designation code?
- A.
  
  35CR
- B.
  
  35TDR
- C.
  
  5D
- D.
  
  5DG
7.

What does the arrow on a synchro schematic symbol indicate?
- A.
  
  The direction of current flow
- B.
  
  The direction of rotor movement
- C.
  
  The angular position of the stator
- D.
  
  The angular position of the rotor
8.

What are the two major components of a synchro?
- A.
  
  The rotor and the stator
- B.
  
  The housing and the stator
- C.
  
  The rotor and the shaft
- D.
  
  The housing and the shaft
9.

What type of rotor can be composed of a single winding or three Y-connected windings?
- A.
  
  Salient-pole
- B.
  
  Drum or wound
- C.
  
  Fixed
- D.
  
  "H"
10.

How does the stator of a TX receive voltage?
- A.
  
  By a physical connection with the rotor
- B.
  
  By a magnetic coupling with another stator
- C.
  
  By a magnetic coupling with the rotor
- D.
  
  By a physical connection with a source
11.

What part of a synchro provides a point for external connections?
- A.
  
  The terminal board
- B.
  
  The slip ring
- C.
  
  The stator
- D.
  
  The brush
12.

Which of the following terms is defined as the amount of load a machine can turn?
- A.
  
  Radian force
- B.
  
  Load factor
- C.
  
  Torque
- D.
  
  Tension
13.

Which of the following units should be used in measuring the amount of turning force of a synchro?
- A.
  
  Ounces
- B.
  
  Pounds
- C.
  
  Foot-pounds
- D.
  
  Ounce-inches
14.

An overloaded synchro will probably exhibit which of the following conditions?
- A.
  
  Overspeed
- B.
  
  Oscillation
- C.
  
  Excessive temperature
- D.
  
  Noisy operation
15.

A synchro receiver has which of the following characteristics that is NOT found in an ordinary transformer?
- A.
  
  A primary that can rotate in relation to the secondary
- B.
  
  A primary magnetically coupled to the secondary
- C.
  
  A step-up turns ratio
- D.
  
  An air core
16.

When a synchro transmitter is in the zero-degree position, the rotor is aligned in what manner?
- A.
  
  With winding S1
- B.
  
  With winding S2
- C.
  
  With winding S3
- D.
  
  Between winding S1 and S2
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?
- A.
  
  0 degrees
- B.
  
  30 degrees
- C.
  
  60 degrees
- D.
  
  90 degrees
18.

Which of the following factors does NOT affect the amplitude of the voltage induced in a stator winding of a synchro transmitter?
- A.
  
  The angular displacement between the rotor and stator
- B.
  
  The amplitude of the primary voltage
- C.
  
  The speed of data transmission
- D.
  
  The turns ratio of the synchro
19.

Damping is necessary for which of the following synchro devices?
- A.
  
  Receiver
- B.
  
  Transmitter
- C.
  
  Control transformer
- D.
  
  Differential transmitter
20.

The primary purpose of damping is to reduce which of the following conditions in a synchro device?
- A.
  
  Readings 180º out of phase
- B.
  
  Overheating
- C.
  
  Oscillating
- D.
  
  Each of the above
21.

What is the minimum number of synchro devices needed for a simple synchro transmission system?
- A.
  
  One
- B.
  
  Two
- C.
  
  Three
- D.
  
  Four
22.

In a simple synchro system, what leads are connected to the source voltage?
- A.
  
  R1 and R2
- B.
  
  S1 and S2
- C.
  
  S2 and S3
- D.
  
  R1 and S1
23.

When a synchro transmitter, and receiver are in correspondence, what is the relative value of the (a) current through the stators and (b) receiver torque?
- A.
  
  (a) Maximum (b) maximum
- B.
  
  (a) Maximum (b) minimum
- C.
  
  (a) Minimum (b) minimum
- D.
  
  (a) Minimum (b) maximum
24.

What term applies to the angle through which a synchro transmitter rotor is rotated mechanically?
- A.
  
  Lag
- B.
  
  Lead
- C.
  
  Gain
- D.
  
  Signal
25.

If a synchro receiver is required to rotate in a direction opposite to the rotation of the transmitter rotor, what leads should be reversed?
- A.
  
  R1 and R2
- B.
  
  S1 and S2
- C.
  
  S2 and S3
- D.
  
  S1 and S3