Electrical Machines On which of the following factor/factors the speed of a DC motor depends upon? Field flux. All of these. Armature current. Applied voltage. Field flux. All of these. Armature current. Applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Swinburne's test is applicable to DC Shunt motor. DC shunt and level Compound motor. DC compound motor. DC series motor. DC Shunt motor. DC shunt and level Compound motor. DC compound motor. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor when started on no load does not accelerate up to full speed but runs at 1/7th of the rated speed. The motor is said to be plugging. cogging. locking. crawling. plugging. cogging. locking. crawling. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An ideal synchronous motor has no starting torque because relative velocity between the stator and rotor mmf’s is zero. rotor is made up of salient poles. relative velocity between stator and rotor mmf’s is not zero. rotor winding is highly reactive. relative velocity between the stator and rotor mmf’s is zero. rotor is made up of salient poles. relative velocity between stator and rotor mmf’s is not zero. rotor winding is highly reactive. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which method is less recommendable for induction motor starting in the industries? Direct online starting. Rotor resistance starting. Stator resistance starting. Auto transformer starting. Direct online starting. Rotor resistance starting. Stator resistance starting. Auto transformer starting. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The type of DC motor generally used for shears and punches is Cummulative compound motor. Series motor. Differential compound motor. Shunt motor. Cummulative compound motor. Series motor. Differential compound motor. Shunt motor. ANSWER DOWNLOAD EXAMIANS APP
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