Electrical Machines Transformer oil is used as a coolant. both A and B. an insulator. inert medium. a coolant. both A and B. an insulator. inert medium. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field circuit of a DC shunt motor is opened The motor will attain dangerously high speed. DC Shunt Motor The speed of motor will be reduced. The armature current will reduce. The motor will attain dangerously high speed. DC Shunt Motor The speed of motor will be reduced. The armature current will reduce. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If input of a transformer is square wave the output will be square wave. sine wave. pulsed wave. triangular wave. square wave. sine wave. pulsed wave. triangular wave. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC shunt motor if load is increased, the speed remains constant. reduce slightly. increase proportional. increased slightly. remains constant. reduce slightly. increase proportional. increased slightly. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by the a 230 V DC motor of armature resistance 0.5 Ω and back emf 200 V is 600 660 40 60 600 660 40 60 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If starting current of a 3 - Φ induction motor is 5 times the rated current, while rated slip is 4 %, then ratio of starting torque to full load torque is 0.6. 0.4. 1. 0.8. 0.6. 0.4. 1. 0.8. ANSWER DOWNLOAD EXAMIANS APP
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