DC Motors The variable resistor shunting the field of a dc series motor is called a Voltage regulator Potential divider Field divertor Armature divertor Voltage regulator Potential divider Field divertor Armature divertor ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. motor which of the following can sustain the maximum temperature rise? Armature winding Field winding Slip rings Commutator Armature winding Field winding Slip rings Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following can be used for controlling the speed of a dc motor? Transistor Thermistor Thyristor Thyratron Transistor Thermistor Thyristor Thyratron ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. shunt motors as load is reduced The speed will increase abruptly The speed will increase in proportion to reduction in load The speed will remain almost/constant The speed will reduce The speed will increase abruptly The speed will increase in proportion to reduction in load The speed will remain almost/constant The speed will reduce ANSWER DOWNLOAD EXAMIANS APP
DC Motors Small dc motors up to 5 HP usually have 6 poles 4 poles 2 poles 8 poles 6 poles 4 poles 2 poles 8 poles ANSWER DOWNLOAD EXAMIANS APP
DC Motors In dc machines fractional pitch winding is used To reduce the sparking To improve cooling To increase the generated emf To reduce the generated emf To reduce the sparking To improve cooling To increase the generated emf To reduce the generated emf ANSWER DOWNLOAD EXAMIANS APP
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