Electrical Machines which of the following losses are negligible in blocked rotor test? both A and B iron loss copper loss mechanical loss both A and B iron loss copper loss mechanical loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Damper winding is used to increase the load current. suppress the hunting. decrease the load current. both 1 and 2. increase the load current. suppress the hunting. decrease the load current. both 1 and 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power factor of squirrel cage induction motor is low at rated load only both A and B low at light loads only low at heavy loads only low at rated load only both A and B low at light loads only low at heavy loads only ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will happen if the the supply terminals are reversed in case of a DC shunt motor? The motor will run in reverse direction. The motor will stop. The motor will run at its normal speed in the same direction as before. The motor will run much faster in the same direction. The motor will run in reverse direction. The motor will stop. The motor will run at its normal speed in the same direction as before. The motor will run much faster in the same direction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The three point starter is used for Series motor. Shunt motor as well as compound motors. Shunt, compound and series motor. Shunt motor. Series motor. Shunt motor as well as compound motors. Shunt, compound and series motor. Shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine, for the same value of Æ, Z and N; which one of the following statements is correct? Armature emf is less with wave winding than with lap winding. Armature emf is same as long as the flux density in the air gap remains the same. Armature emf is more with wave winding than with lap winding. Armature emf depends on weather the machine is running as a motor or generator. Armature emf is less with wave winding than with lap winding. Armature emf is same as long as the flux density in the air gap remains the same. Armature emf is more with wave winding than with lap winding. Armature emf depends on weather the machine is running as a motor or generator. ANSWER DOWNLOAD EXAMIANS APP
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