DC Motors The speed of a dc motor is inversely proportional to flux per pole None of the listed here Directly proportional to flux per pole inversely proportional to applied voltage inversely proportional to flux per pole None of the listed here Directly proportional to flux per pole inversely proportional to applied voltage ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc compound machine, Both play equally dominant role Series field winding plays dominant role Either can play dominant role Shunt field winding plays dominant role Both play equally dominant role Series field winding plays dominant role Either can play dominant role Shunt field winding plays dominant role ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C ambient temperature, then the motor Of higher H.P. should be selected Of lower H.P. should be selected Can be used for 50°C ambient temperature also Is to be de-rated by a factor recommended by manufacturer and select the next higher H.P. motor Of higher H.P. should be selected Of lower H.P. should be selected Can be used for 50°C ambient temperature also Is to be de-rated by a factor recommended by manufacturer and select the next higher H.P. motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors When the armature of a D.C. motor rotates, e.m.f. induced is Back e.m.f. Self-induced e.m.f. None of these Mutually induced e.m.f. Back e.m.f. Self-induced e.m.f. None of these Mutually induced e.m.f. ANSWER DOWNLOAD EXAMIANS APP
DC Motors In which of the following tests only one motor is required? Hopkinson's test Brake test Swinburne's test Field's test Hopkinson's test Brake test Swinburne's test Field's test ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking Plugging Regenerative None of these Dynamic braking Plugging Regenerative None of these Dynamic braking ANSWER DOWNLOAD EXAMIANS APP
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