Electrical Machines In a DC Shunt Motor if the load current increases then field flux increases. decreases remains constant. decreases. increases. decreases remains constant. decreases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Counter emf of a DC motor aids applied voltage. exceeds supply voltage helps in energy conversion. regulates its armature voltage. aids applied voltage. exceeds supply voltage helps in energy conversion. regulates its armature voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of IM the torque is inversely proportional to √slip. directly proportional to slip2. inversely proportional to slip. directly proportional to slip. inversely proportional to √slip. directly proportional to slip2. inversely proportional to slip. directly proportional to slip. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole dc generator is running at 1500 rpm the frequency of current in the armature winding is 150Hz. 50Hz. 200Hz. 100Hz. 150Hz. 50Hz. 200Hz. 100Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage regulation can be determined by which of the following? ZPF method. MMf method. Synchronous impedance method. All of these ZPF method. MMf method. Synchronous impedance method. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction of an unsaturated DC machine is none of above. magnetising. crossmagnetising. demagnetising. none of above. magnetising. crossmagnetising. demagnetising. ANSWER DOWNLOAD EXAMIANS APP
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