DC Motors In a dc motor constant torque is produced due to Rotor laminations End plates Commutator Pole shoes Rotor laminations End plates Commutator Pole shoes ANSWER DOWNLOAD EXAMIANS APP
DC Motors When two dc series motor are commected in parallel, the resultant speed is Loss than the normal speed More than the normal speed Normal speed Zero Loss than the normal speed More than the normal speed Normal speed Zero ANSWER DOWNLOAD EXAMIANS APP
DC Motors Excessive sparking at brushes may be caused due to Misaligment of machine Loose coupling Worn bearings Dirt on the commutator Misaligment of machine Loose coupling Worn bearings Dirt on the commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following can be used for controlling the speed of a dc motor? Thyratron Thermistor Transistor Thyristor Thyratron Thermistor Transistor Thyristor ANSWER DOWNLOAD EXAMIANS APP
DC Motors A three point starter is considered suitable for Shunt as well as compound motors Shunt, compound and series motors All D.C. motors Shunt motors Shunt as well as compound motors Shunt, compound and series motors All D.C. motors Shunt motors 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 4.0 1.0 2.0 0.5 4.0 1.0 2.0 0.5 ANSWER DOWNLOAD EXAMIANS APP
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