DC Motors The armature torque of the D.C. shunt motor is proportional to field flux only armature current only None of these both (A) and (B) field flux only armature current only None of these both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which method of braking is generally used in elevators? Plugging None of these Regenerative braking Rheostat braking Plugging None of these Regenerative braking Rheostat braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors Excessive sparking at brushes may be caused due to Dirt on the commutator Loose coupling Worn bearings Misaligment of machine Dirt on the commutator Loose coupling Worn bearings Misaligment of machine ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following tests will be suitable for testing two similar D.C. series motors of large capacity? Field test Hopkinson's test Brake test Swinburne's test Field test Hopkinson's test Brake test Swinburne's test ANSWER DOWNLOAD EXAMIANS APP
DC Motors The starting resistance of a DC motor is generally Low 1000 Ω Around 500 Ω Infinitely large Low 1000 Ω Around 500 Ω Infinitely large ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Decrease Remains same Become zero Increase Decrease Remains same Become zero Increase ANSWER DOWNLOAD EXAMIANS APP
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