DC Motors Which of the following losses are significantly reduced by laminating the core of a D.C. generator? Copper losses Eddy current losses Windage losses Hysteresis losses Copper losses Eddy current losses Windage losses Hysteresis losses ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following loss in a D.C. generator varies significantly with the load current? Field copper loss Windage loss None of these Armature copper loss Field copper loss Windage loss None of these Armature copper loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors The greatest percentage of power loss in a dc motor is due to Friction loss Copper loss Core loss Windage loss Friction loss Copper loss Core loss Windage loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors The rheostatic speed control method is very Efficient Unsuitable for rapidly changing loads Suitable for getting speeds above the normal Economical Efficient Unsuitable for rapidly changing loads Suitable for getting speeds above the normal Economical ANSWER DOWNLOAD EXAMIANS APP
DC Motors Ward-Leonard control is basically a Voltage control method Field control method Field divertor method Armature resistance control method Voltage control method Field control method Field divertor method Armature resistance control method ANSWER DOWNLOAD EXAMIANS APP
DC Motors Usually wide and sensitive speed control is desired in case of Colliery winders Centrifugal pumps Elevators Steel rolling mills Colliery winders Centrifugal pumps Elevators Steel rolling mills ANSWER DOWNLOAD EXAMIANS APP
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