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If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking
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Flywheel is used with D.C. compound motor to reduce the peak demand by the motor, compound motor will have to be
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A motor pool has 300 vehicles of which 30% are trucks. 20% of all the vehicles in the motor pool are diesel, including 15 trucks. What percent of the motor pool is composed of vehicles that are neither trucks nor diesel?
By looking at which part of the motor, it can be easily confirmed that a particular motor is D.C. motor?
Of the 120 households in an area, 55 have cars, 35 have motor bikes, and 20 have both cars and motor bikes. How many of the households in the area have neither cares nor motor bikes?
One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven
A synchronous motor installed at the receiving end substation operates with such an excitation that it takes power at lagging power factor. Now if the applied voltage of the synchronous motor goes down, the power factor of the synchronous motor will
Which of the following braking systems is used on steam locomotives?