DC Motors For starting a dc motor a starter is required because It limits the speed of the motor It starts the motor None of the listed here It limits the starting current to a safe value It limits the speed of the motor It starts the motor None of the listed here It limits the starting current to a safe value ANSWER DOWNLOAD EXAMIANS APP
DC Motors A series motor will over speed when The field is opened The load is increase The armature circuit is opened. Load is removed The field is opened The load is increase The armature circuit is opened. Load is removed ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor constant torque is produced due to Pole shoes Rotor laminations End plates Commutator Pole shoes Rotor laminations End plates Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors The power mentioned on the name plate of an electric motor indicates The power drawn in kVA The output power available at the shaft The power drawn in kW The gross power The power drawn in kVA The output power available at the shaft The power drawn in kW The gross power ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which one of the following is not necessarily the advantage of D.C. motors over A.C. motors? Stability High starting torque Low cost Wide speed range Stability High starting torque Low cost Wide speed range ANSWER DOWNLOAD EXAMIANS APP
DC Motors Armature reaction in dc motor is increased When the armature current decreases When the armature current increases By interpoles When the field current increases When the armature current decreases When the armature current increases By interpoles When the field current increases ANSWER DOWNLOAD EXAMIANS APP