DC Motors If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking Plugging Dynamic braking None of these Regenerative Plugging Dynamic braking None of these Regenerative ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a series motor at no load is 4000 rpm 1000 rpm 2000 rpm Infinity 4000 rpm 1000 rpm 2000 rpm Infinity ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following tests will be suitable for testing two similar D.C. series motors of large capacity? Field test Hopkinson's test Brake test Swinburne's test Field test Hopkinson's test Brake test Swinburne's test ANSWER DOWNLOAD EXAMIANS APP
DC Motors Dc shunt motors are used for driving Hoist Machine tools Trains Cranes Hoist Machine tools Trains Cranes ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which motor should be used for centrifugal pumps? Series motor Shunt motor Either series or shunt None of the listed here Series motor Shunt motor Either series or shunt None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor, the brushes are shifted from the mechanical neutral plane in a direction opposite to the rotation to _____ Increase speed Produce flat characteristics Decrease speed Reduce sparking Increase speed Produce flat characteristics Decrease speed Reduce sparking ANSWER DOWNLOAD EXAMIANS APP
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