Electrical Machines At slip s = 1 torque developed in machine is maximum torque. electromagnetic torque. starting torque. none. maximum torque. electromagnetic torque. starting torque. none. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor torque or load angle δ ------------- with increase in load None of these remains unaffected decreases increases None of these remains unaffected decreases increases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the frequency of a alternator, if P = number of poles and N = revolution made per second? 120N / P Hz. PN / 2 Hz. 120 / PN Hz. 120P / N Hz. 120N / P Hz. PN / 2 Hz. 120 / PN Hz. 120P / N Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 4 pole IM is supplied from a 50 Hz source. Calculate rotor frequency when rotor runs 600 rpm? 20 Hz. 35 Hz. Can be determined. 30 Hz. 20 Hz. 35 Hz. Can be determined. 30 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To get the speed of DC motor is more than normal without wastage of electrical energy _____________ is used. Ward Leonard control. None of above. Any of above method. Rheostatic control. Ward Leonard control. None of above. Any of above method. Rheostatic control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type motors are preferred for lathes? DC shunt motors. Squirrel Cage induction motor. Synchronous motor. Either A or B. DC shunt motors. Squirrel Cage induction motor. Synchronous motor. Either A or B. ANSWER DOWNLOAD EXAMIANS APP
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