DC Motors Which of the following can be used for controlling the speed of a dc motor? Thyratron Transistor Thermistor Thyristor Thyratron Transistor Thermistor Thyristor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Dc shunt motors are used for driving Hoist Trains Cranes Machine tools Hoist Trains Cranes Machine tools ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following methods gives the greatest braking torque? None of the listed here Plugging Regenerative braking Rheostatic braking None of the listed here Plugging Regenerative braking Rheostatic braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a dc motor is to be selected for conveyors, which motor would be preferred? Series motor Shunt motor Cummulative compound motor Differentially compound motor Series motor Shunt motor Cummulative compound motor Differentially compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The starting resistance of a DC motor is generally Infinitely large Around 500 Ω Low 1000 Ω Infinitely large Around 500 Ω Low 1000 Ω ANSWER DOWNLOAD EXAMIANS APP
DC Motors Excessive motor vibration is caused by Bent shaft Too much brush tension Open armature coil Worn bearings Bent shaft Too much brush tension Open armature coil Worn bearings ANSWER DOWNLOAD EXAMIANS APP
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