Ques.[1] For torque transmission over a long distance with the help of electrical wires only, which of the following two synchros are used ? (a)CX and CT (b)CX and CR (c)CX and CD (d)CT and CD Answer :B Ques.[2] 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:D Ques.[3] The control ........................ synchro has three- phase winding both on its stator and rotor. (a) differential (b) transformer (c) receiver (d) transmitter Answer:A Ques.[4] 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:D Ques.[4] The low-torque synchros cannot be used for (a) torque transmiss...
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