Electrical Machines If the no-voltage release in a DC motor starter fails to operate on failure of supply, on resumption of supply the motor will start automatically without trouble. develop very low starting torque. not start automatically. get damaged. start automatically without trouble. develop very low starting torque. not start automatically. get damaged. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 100 KVA transformer is operating at 60 Hz, 240 V supply. The same transformer is operating at 50 Hz, 200 V supply. The new rating is 50 KVA 123.3 KVA 83.33 KVA 100 KVA 50 KVA 123.3 KVA 83.33 KVA 100 KVA 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 1400W, 1000W 800W, 1600W 1600W, 800W 1000W , 1400W 1400W, 1000W 800W, 1600W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the mechanical power developed by a DC series motor is maximum? None of above. Back emf is equal to half the applied voltage. Back emf is equal to zero. Back emf is equal to applied voltage. None of above. Back emf is equal to half the applied voltage. Back emf is equal to zero. Back emf is equal to applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor during DC rheostatic braking is s. 2 + s. 1 - s. 2 - s. s. 2 + s. 1 - s. 2 - s. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type motors are preferred for lathes? Synchronous motor. DC shunt motors. Either A or B. Squirrel Cage induction motor. Synchronous motor. DC shunt motors. Either A or B. Squirrel Cage induction motor. ANSWER DOWNLOAD EXAMIANS APP
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