Electrical Machines The wound rotor type IM is used for____________ speed operation. minimum. variable. maximum. constant. minimum. variable. maximum. constant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following DC generator will be in a position to build up without any residual magnetism in the field? Separately excited. Shunt. Series. Compound. Separately excited. Shunt. Series. Compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor start capacitor run provides high power factor only. none. high staring torque and high power factor. high staring torque only. high power factor only. none. high staring torque and high power factor. high staring torque only. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt generator, when driven without any excitation, showed an open circuit voltage of 12 V. When the field winding was excited, the voltage dropped to zero. It happened because there was no residual magnetism in the field circuit field resistance was higher than critical resistance there was a break in the armature circuit field winding was wrongly connected there was no residual magnetism in the field circuit field resistance was higher than critical resistance there was a break in the armature circuit field winding was wrongly connected ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - φ induction motor running at full load which of these parameters is stationary with respect to the stator mmf wave? Rotor mmf wave. Rotor winding. Both rotor and stator winding. Stator winding. Rotor mmf wave. Rotor winding. Both rotor and stator winding. Stator winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature shaft must be able to with stand All of these Bending moment due to weight of the armature. Any unbalanced magnetic pull on the armature core. Twisting stains due to transmission of torque. All of these Bending moment due to weight of the armature. Any unbalanced magnetic pull on the armature core. Twisting stains due to transmission of torque. ANSWER DOWNLOAD EXAMIANS APP
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