DC Motors For constant torque drive which speed control method is preferred? Shunt armature control Mechanical loading system Field control Armature voltage control Shunt armature control Mechanical loading system Field control Armature voltage control ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking Dynamic braking Regenerative None of these Plugging Dynamic braking Regenerative None of these Plugging ANSWER DOWNLOAD EXAMIANS APP
DC Motors Three point starter can be used for Compound motor only Series motor only Both shunt and compound motor Shunt motor only Compound motor only Series motor only Both shunt and compound motor Shunt motor only ANSWER DOWNLOAD EXAMIANS APP
DC Motors During rheostat braking of dc series motor Motor is run as a generator None of the listed here Motor is run at reduced speed Motor is reversed in direction Motor is run as a generator None of the listed here Motor is run at reduced speed Motor is reversed in direction ANSWER DOWNLOAD EXAMIANS APP
DC Motors Excessive sparking at brushes may be caused due to Loose coupling Worn bearings Dirt on the commutator Misaligment of machine Loose coupling Worn bearings Dirt on the commutator Misaligment of machine ANSWER DOWNLOAD EXAMIANS APP
DC Motors A three point starter is considered suitable for Shunt, compound and series motors All D.C. motors Shunt motors Shunt as well as compound motors Shunt, compound and series motors All D.C. motors Shunt motors Shunt as well as compound motors ANSWER DOWNLOAD EXAMIANS APP
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