Electrical Machines In a 3-phase induction motor, if the supply voltage and frequency are reduced by the same ratio, then slip at which maximum torque occurs is less and maximum torque increases more and maximum torque remains constant less and maximum torque decreases more and maximum torque decreases less and maximum torque increases more and maximum torque remains constant less and maximum torque decreases more and maximum torque decreases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The noise resulting from vibrations of lamination set by magnetic forces, is termed as zoom. hum. boo. magnetostriction. zoom. hum. boo. magnetostriction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output power indicated on the name plate of any motor is always the Power drawn in KVA. Power drawn in KW. Gross power. Output power at the shaft. Power drawn in KVA. Power drawn in KW. Gross power. Output power at the shaft. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A compound motor has tertiary winding. only series field winding. only shunt field winding. both shunt and series field winding. tertiary winding. only series field winding. only shunt field winding. both shunt and series field winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a star - delta starting of an IM applied voltage per stator phase is 57.7 % of a line volt reduced voltage is applied to the stator. line voltage is 57.7 % of stator voltage. resistance is inserted in the rotor. applied voltage per stator phase is 57.7 % of a line volt reduced voltage is applied to the stator. line voltage is 57.7 % of stator voltage. resistance is inserted in the rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor normally does not depend on rotor speed. synchronous speed. shaft torque. core loss component. rotor speed. synchronous speed. shaft torque. core loss component. ANSWER DOWNLOAD EXAMIANS APP
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