Electrical Machines If field current is decreased in shunt dc motor, the speed of the motor decreases. remains same. None of these increases. decreases. remains same. None of these increases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hunting in a synchronous motor takes place when power factor is unity. motor is under loaded. when load varies. when supply voltage fluctuates. when power factor is unity. motor is under loaded. when load varies. when supply voltage fluctuates. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In circle diagram for induction motor, diameter of circle represents which of the following ? Slip. Line voltage. Rotor current. Running torque. Slip. Line voltage. Rotor current. Running torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Find the number of poles required, when the frequency is 50Hz and speed of the motor is 500 rpm? 5 24 12 10 5 24 12 10 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Alternator operates on the principle of electromagnetic induction. self induction. mutual induction. self or mutual induction. electromagnetic induction. self induction. mutual induction. self or mutual induction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which motor cannot be started on no load? series motors cumulative compound motors shunt motors both B and C series motors cumulative compound motors shunt motors both B and C ANSWER DOWNLOAD EXAMIANS APP
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