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Servomotors – 1 – 1

1. A dc servomotor is similar to a regular d.c. motor except that its design is modified to cope with :

(a) electronic switching
(b) slow speeds
(c) static conditions
(d) both (b) and (c)

Answer
Answer : (d)

Explanation
No answer description available for this question. Let us discuss.

2. One of the basic requirements of a servomotor is that it must produce high torque at all :

(a) loads
(b) frequencies
(c) speeds
(d) voltages

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

3. The most common two-phase ac servomotor differs from the standard ac induction motor because it has :

(a) higher rotor resistance
(b) higher power rating
(c) motor stator windings
(d) greater inertia

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

4. Squirrel-cage induction motor is finding increasing application in high-power servo systems because new methods have been found to :

(a) increase its rotor resistance
(b) control its torque
(c) decrease its intertia
(d) decouple its torque and flux

Answer
Answer : (d)

Explanation
No answer description available for this question. Let us discuss.

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