Electrical Machines In induction motor wound rotor motor is mainly is used in application where less costly motor is not required. high starting torque. power factor is less. low starting torque. less costly motor is not required. high starting torque. power factor is less. low starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Motor 3 point starter is used to limit the starting current to a safer value. all of above. provide protection against Low-Voltage. provide overload protection. limit the starting current to a safer value. all of above. provide protection against Low-Voltage. provide overload protection. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. What is the slip value? 0.02 0.4 0.04 0.2 0.02 0.4 0.04 0.2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In travelling cranes for hoisting and lowering which type of motor is preferred? AC slip ring motor. Single phase induction motor. DC series motor. Synchronous motor. AC slip ring motor. Single phase induction motor. DC series motor. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the commutator pitch? Number of conductors spanned by one coil at the back end of the armature. The distance between the staring of first coil and its next successive coil Number of conductors spanned by one coil at the front end of the armature. Number of commutator segments between two successive coils. Number of conductors spanned by one coil at the back end of the armature. The distance between the staring of first coil and its next successive coil Number of conductors spanned by one coil at the front end of the armature. Number of commutator segments between two successive coils. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field current is reduced to zero the maximum power developed by alternator is 0.9103 KW. 5.46 KW. 1.644 KW. 2.73 KW. 0.9103 KW. 5.46 KW. 1.644 KW. 2.73 KW. ANSWER DOWNLOAD EXAMIANS APP
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