Electrical Machines Which of the following represents the rotating losses of machine? Hysteresis losses Eddy current losses Friction and windage losses All of the them Hysteresis losses Eddy current losses Friction and windage losses All of the them ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors are preferred in lifts? DC shunt motors. None of these DC compound motors. DC series motors. DC shunt motors. None of these DC compound motors. DC series motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following methods are suitable for the speed control of squirrel cage induction motor? 1. Voltage control. 2. Frequency control. 3. Pole changing method. 4. Rotor resistance control select the correct answer using the codes given below:- 1, 3 and 4. 2, 3 and 4. 2 and 4. 1, 2 and 3. 1, 3 and 4. 2, 3 and 4. 2 and 4. 1, 2 and 3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole lap wound dc generator has 4 brushes, if one of the brush is damaged, what will be the change in V, I and P ratings V, I/2 and P/2 V/2, I/2 and P/4 V, I and P V/2, I and P/2 V, I/2 and P/2 V/2, I/2 and P/4 V, I and P V/2, I and P/2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Motor 3 point starter is used to provide protection against Low-Voltage. provide overload protection. limit the starting current to a safer value. all of above. provide protection against Low-Voltage. provide overload protection. limit the starting current to a safer value. all of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which machine is used for battery charging? DC shunt generator. None of these. Compounded DC generator. DC series generator. DC shunt generator. None of these. Compounded DC generator. DC series generator. ANSWER DOWNLOAD EXAMIANS APP
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