DC Motors If the supply voltage for a D.C. motor is increased, which of the following will decrease? Full-load current Operating speed Starting torque All of these Full-load current Operating speed Starting torque All of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors Flywheel is used with D.C. compound motor to reduce the peak demand by the motor, compound motor will have to be Level compounded Cumulatively compounded Differentially compounded Under compounded Level compounded Cumulatively compounded Differentially compounded Under compounded 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 2.0 1.0 4.0 0.5 2.0 1.0 4.0 0.5 ANSWER DOWNLOAD EXAMIANS APP
DC Motors Dc series motors are used in those applications where _____ is required. None of the listed here Low no load speed Constant speed High starting torque None of the listed here Low no load speed Constant speed High starting torque ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc machines the residual magnetism is of the order of 2 to 3 percent 20 to 25 percent 50 to 75 percent 10 to 15 percent 2 to 3 percent 20 to 25 percent 50 to 75 percent 10 to 15 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors At the instant of starting when a D.C. motor is put on supply, it behaves like A capacitive circuit A low resistance circuit None of these A highly resistive circuit A capacitive circuit A low resistance circuit None of these A highly resistive circuit ANSWER DOWNLOAD EXAMIANS APP
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