Electrical Machines The 3 - Φ induction motor with rotor circuit open will not run. get over heated. make noise. run normally. not run. get over heated. make noise. run normally. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A short circuit test on a transformer gives copper loss at half load. copper loss at any load. copper loss at over load. copper loss at full load. copper loss at half load. copper loss at any load. copper loss at over load. copper loss at full load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At what power factor, the voltage regulation of a transformer can be zero ? Lagging power factor. Zero power factor. Unity power factor. Leading power factor. Lagging power factor. Zero power factor. Unity power factor. Leading power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, armature reaction refers to what? Effect of armature flux on the main field flux. Effect of field flux on the armature flux. None of these Effect of armature flux on the load. Effect of armature flux on the main field flux. Effect of field flux on the armature flux. None of these Effect of armature flux on the load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Damper winding is used to decrease the load current. both 1 and 2. suppress the hunting. increase the load current. decrease the load current. both 1 and 2. suppress the hunting. increase the load current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following speed control of DC motor the speed obtained is below than the rated speed? Armature voltage control. Field resistance control. Any of above. Armature circuit resistance control. Armature voltage control. Field resistance control. Any of above. Armature circuit resistance control. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS