Electrical Machines Induction motors have the advantage of less maintenance. all of below. simple in construction. less cost. less maintenance. all of below. simple in construction. less cost. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor hunting can be reduced to minimum possible by any of above methods. designing the motor for adequate synchronizing power. using a flywheel. providing damper winding in the rotor pole faces. any of above methods. designing the motor for adequate synchronizing power. using a flywheel. providing damper winding in the rotor pole faces. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The field divertor resistance for a DC series motor is of order of 10 Ω 50 Ω 100 Ω 0.1 Ω 10 Ω 50 Ω 100 Ω 0.1 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A motor armature conductor of length 0.5 m is exposed to a flux density of 4 Wb / m2. Calculate the force experienced by the conductor, when the armature current is 5 Amp? None of these. Can't be determined. 20 N. 15 N. None of these. Can't be determined. 20 N. 15 N. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Thin laminations are used in a machine in order to reduce Copper losses Eddy current losses Hysteresis losses Both 1 and 2 Copper losses Eddy current losses Hysteresis losses Both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The shaft of induction motor may be unbalanced due to poor lubrication. overheating of winding. overload. uneven air gap. poor lubrication. overheating of winding. overload. uneven air gap. ANSWER DOWNLOAD EXAMIANS APP
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