DC Motors Dc series motors are used in those applications where _____ is required. Low no load speed None of the listed here High starting torque Constant speed Low no load speed None of the listed here High starting torque Constant speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors Excessive sparking at brushes may be caused due to Loose coupling Misaligment of machine Dirt on the commutator Worn bearings Loose coupling Misaligment of machine Dirt on the commutator Worn bearings ANSWER DOWNLOAD EXAMIANS APP
DC Motors No load speed of which of the following motor will be highest? Shunt motor Differentially compounded motor Series motor Cummulative compounded motor Shunt motor Differentially compounded motor Series motor Cummulative compounded motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following losses are significantly reduced by laminating the core of a D.C. generator? Windage losses Hysteresis losses Copper losses Eddy current losses Windage losses Hysteresis losses Copper losses Eddy current losses ANSWER DOWNLOAD EXAMIANS APP
DC Motors The dirction of rotation of a dc series motor can be changed by Interchanging supply terminals Either of Interchanging field or Interchanging supply Interchanging field terminals None of the listed here Interchanging supply terminals Either of Interchanging field or Interchanging supply Interchanging field terminals None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors Ward-Leonard control is basically a Armature resistance control method Voltage control method Field control method Field divertor method Armature resistance control method Voltage control method Field control method Field divertor method ANSWER DOWNLOAD EXAMIANS APP
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