DC Motors Which of the following in a dc motor, can sustain the maximum temperature rise? Field winding Commutator Slip rings Armature winding Field winding Commutator Slip rings Armature winding ANSWER DOWNLOAD EXAMIANS APP
DC Motors Excessive sparking at brushes may be caused due to Dirt on the commutator Misaligment of machine Worn bearings Loose coupling Dirt on the commutator Misaligment of machine Worn bearings Loose coupling ANSWER DOWNLOAD EXAMIANS APP
DC Motors The running speed of a dc series motor is basically determined by None of the listed here Field excitation Armature reaction Load None of the listed here Field excitation Armature reaction Load ANSWER DOWNLOAD EXAMIANS APP
DC Motors By flux control method of speed control of a dc shunt motor, we can obtain speeds. Below the normal speed only None of the listed here Above the normal speed only Above as well as below the normal speed Below the normal speed only None of the listed here Above the normal speed only Above as well as below the normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors Small dc motors up to 5 HP usually have 6 poles 2 poles 4 poles 8 poles 6 poles 2 poles 4 poles 8 poles ANSWER DOWNLOAD EXAMIANS APP
DC Motors In which of the following tests only one motor is required? Hopkinson's test Swinburne's test Brake test Field's test Hopkinson's test Swinburne's test Brake test Field's test ANSWER DOWNLOAD EXAMIANS APP
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