Electrical Machines If the source voltage of a DC motor is increased, which of the following will decrease? Operating speed. Full load current. Starting torque. Starting torque, operating speed, full load current. Operating speed. Full load current. Starting torque. Starting torque, operating speed, full load current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a cumulatively compound DC motor can be controlled by varying Any of above. Armature voltage control. Armature resistance control. Shunt field resistance control. Any of above. Armature voltage control. Armature resistance control. Shunt field resistance control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Type of single phase motor having highest power factor at full load is capacitor run. capacitor start. split phase. shaded pole type. capacitor run. capacitor start. split phase. shaded pole type. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, maximum power occurs at a load angle of less than 90° 90° 0° Greater than 90° less than 90° 90° 0° Greater than 90° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors are used for lathes? DC shunt motors. Either A or B. Synchronous motor. Cage induction motor. DC shunt motors. Either A or B. Synchronous motor. Cage induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the number of rotor slots is equal to number of stator slots, then motor refuses to start. Hence it is known as air gap. relative speed. cogging. crawling. air gap. relative speed. cogging. crawling. ANSWER DOWNLOAD EXAMIANS APP
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