Electrical Machines A 20KVA auto transformer, turn ratio is 0.8. Find the power transferred conductively? 4KVA 20KVA 16KVA 0KVA 4KVA 20KVA 16KVA 0KVA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A large series motor is never started without some mechanical on it because otherwise it will Produce sparking at brushes. Draw too much current. Develop excessive speed and damage itself. Open fuse or circuit breaker. Produce sparking at brushes. Draw too much current. Develop excessive speed and damage itself. Open fuse or circuit breaker. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The total core loss of a 400 V, 50 Hz transformer is 2400W, when it is supplied by 200 V, 25 Hz loss is 800W. Calculate eddy current loss and hysteresis loss? 1600W, 800W 1000W , 1400W 800W, 1600W 1400W, 1000W 1600W, 800W 1000W , 1400W 800W, 1600W 1400W, 1000W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The short circuit test on a transformer is conducted to obtain eddy current loss. hysteresis loss. copper losses. core loses only. eddy current loss. hysteresis loss. copper losses. core loses only. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor is accidentally connected to single phase ac supply voltage. The torque produced will be steady and unidirectional None of these oscillating pulsating and unidirectional steady and unidirectional None of these oscillating pulsating and unidirectional ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, armature reaction refers to what? Effect of armature flux on the main field flux. Effect of field flux on the armature flux. Effect of armature flux on the load. None of these Effect of armature flux on the main field flux. Effect of field flux on the armature flux. Effect of armature flux on the load. None of these ANSWER DOWNLOAD EXAMIANS APP
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