DC Motors Differentially compound D.C. motors can find applications requiring Frequent on-off cycles Low starting torque High starting torque Variable speed Frequent on-off cycles Low starting torque High starting torque Variable speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors In which of the following tests only one motor is required? Brake test Swinburne's test Hopkinson's test Field's test Brake test Swinburne's test Hopkinson's test Field's test ANSWER DOWNLOAD EXAMIANS APP
DC Motors The compensating winding is connected in Parallel with armature Series-parallel with armature Series with armature None of the listed here Parallel with armature Series-parallel with armature Series with armature None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors What will happen if the back emf of a dc motor vanishes suddenly? The motor will stop The motor will run noisy The motor will continue to run The armature may burn The motor will stop The motor will run noisy The motor will continue to run The armature may burn ANSWER DOWNLOAD EXAMIANS APP
DC Motors The rheostatic speed control method is very Suitable for getting speeds above the normal Unsuitable for rapidly changing loads Efficient Economical Suitable for getting speeds above the normal Unsuitable for rapidly changing loads Efficient Economical ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed by a shunt motor will be maximum when the ratio of back emf to applied voltage is 0.5 1.0 2.0 4.0 0.5 1.0 2.0 4.0 ANSWER DOWNLOAD EXAMIANS APP
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