DC Motors The starting resistance of a DC motor is generally 1000 Ω Around 500 Ω Infinitely large Low 1000 Ω Around 500 Ω Infinitely large Low ANSWER DOWNLOAD EXAMIANS APP
DC Motors D.C. series motors are used Where load is constant Where load changes frequently None of these Where constant operating speed is needed Where load is constant Where load changes frequently None of these Where constant operating speed is needed ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a series motor at no load is Infinity 2000 rpm 4000 rpm 1000 rpm Infinity 2000 rpm 4000 rpm 1000 rpm ANSWER DOWNLOAD EXAMIANS APP
DC Motors In dc machines fractional pitch winding is used To increase the generated emf To reduce the sparking To improve cooling To reduce the generated emf To increase the generated emf To reduce the sparking To improve cooling To reduce the generated emf ANSWER DOWNLOAD EXAMIANS APP
DC Motors The plugging gives the Highest torque braking Smallest torque braking None of the listed here Zero torque braking Highest torque braking Smallest torque braking None of the listed here Zero torque braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors For starting a dc motor a starter is required because None of the listed here It starts the motor It limits the speed of the motor It limits the starting current to a safe value None of the listed here It starts the motor It limits the speed of the motor It limits the starting current to a safe value ANSWER DOWNLOAD EXAMIANS APP
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