Electrical Machines For pure resistive load what is the armature reaction? demagnetization magnetization cross magnetization All of these demagnetization magnetization cross magnetization All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When excitation is increased (over excitation), the synchronous generator operates at leading power factor. any of the above. unity power factor. lagging power factor. leading power factor. any of the above. unity power factor. lagging power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output indicate on the name plate of any motor is always the Gross power. Output power at the shaft. Power drawn in KW. Power drawn in KVA. Gross power. Output power at the shaft. Power drawn in KW. Power drawn in KVA. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A separately excited DC motor has an armature resistance of 0.5 Ohm. The supply voltage is 250V. Armature current is 20A and the speed of rotation is 1500 rpm. Find the torque developed? Zero 16.55 Nm 15.6 Nm 15.28 Nm Zero 16.55 Nm 15.6 Nm 15.28 Nm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward-Leonard control is basically a ___________ control method. Field diverter control. Armature voltage control. Armature resistance control. Field control. Field diverter control. Armature voltage control. Armature resistance control. Field control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC series motor the speed is ______________ proportional to the armature current. none of these. inversely. has no relation. directly. none of these. inversely. has no relation. directly. ANSWER DOWNLOAD EXAMIANS APP
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