Electrical Machines Maximum allowable moisture content of power transformer insulating oil is generally taken as 35 ppm. 20 ppm. 45 ppm. 25 ppm. 35 ppm. 20 ppm. 45 ppm. 25 ppm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the rotor speed, in a synchronous machine, becomes more than the synchronous speed during hunting, the damper bars develop DC motor torque. induction generator torque. induction motor torque. synchronous motor torque. DC motor torque. induction generator torque. induction motor torque. synchronous motor torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a short circuit test on a transformer is performed at 25 V, 50 Hz, the drawn current is I1. If the test is performed by 25 V and 25 Hz and power drawn current is I2, then I1 = I2 I1 < I2 None of these I1 > I2 I1 = I2 I1 < I2 None of these I1 > I2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Torque developed in the rotor is inversely proportional to slip not dependent on the slip directly proportional to slip either of these inversely proportional to slip not dependent on the slip directly proportional to slip either of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines _____________ types of induction motor are widely used. Slip ring IM. Squirrel cage IM. Three phase IM. Single phase IM. Slip ring IM. Squirrel cage IM. Three phase IM. Single phase IM. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Speed of DC motor can be controlled by varying its flux oer pole. applied voltage. all of these. resistance of armature culture. its flux oer pole. applied voltage. all of these. resistance of armature culture. ANSWER DOWNLOAD EXAMIANS APP
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