Electrical Machines Diverters are used only in None of these either of these shunt motors series motors None of these either of these shunt motors series motors ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole DC generator rotates at 1500 rpm. How many times in a second, will the emf induced in each armature conductor changes its direction? 100. 500. 200. 750. 100. 500. 200. 750. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC generator will not build up voltage if field resistance is more than critical resistance. if it has lost residual magnetism. any one of above. due to wrong direction of rotation. if field resistance is more than critical resistance. if it has lost residual magnetism. any one of above. due to wrong direction of rotation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When two DC series motors are connected in parallel, the resultant speed is more than normal speed. normal speed. less than normal speed. zero. more than normal speed. normal speed. less than normal speed. zero. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a synchronous motor is running at synchronous speed, the damper winding produces eddy current torque. damping torqe. no torque. both 1 and 2. eddy current torque. damping torqe. no torque. both 1 and 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider a separately excited DC motor. If the field current is increased while the armature terminal voltage is held constant, then speed of the motor Increase. None of these. Decrease. Remains same. Increase. None of these. Decrease. Remains same. ANSWER DOWNLOAD EXAMIANS APP
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