DC Motors Which of the following in a dc motor, can sustain the maximum temperature rise? Slip rings Commutator Field winding Armature winding Slip rings Commutator Field winding Armature winding ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a _____ motor is practically constant. Cumulatively compounded Shunt Series Differentially compounded Cumulatively compounded Shunt Series Differentially compounded ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor if the back emf is absent Motor will burn Motor will run at very slow speed Motor will run at very high speed Motor will not run at all Motor will burn Motor will run at very slow speed Motor will run at very high speed Motor will not run at all ANSWER DOWNLOAD EXAMIANS APP
DC Motors The main disadvantage of the Ward-Leonard control method is High maintenance cost Low efficiency at high loads High initial cost All of these High maintenance cost Low efficiency at high loads High initial cost All of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a dc motor can be controlled by changing Is flux All of the listed here Armature circuit resistance Aplied voltage Is flux All of the listed here Armature circuit resistance Aplied voltage ANSWER DOWNLOAD EXAMIANS APP
DC Motors The variable resistor shunting the field of a dc series motor is called a Armature divertor Field divertor Voltage regulator Potential divider Armature divertor Field divertor Voltage regulator Potential divider ANSWER DOWNLOAD EXAMIANS APP
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