Electrical Machines The supply voltage to an induction motor is reduced by 10%. By what percentage, approximately, will the maximum torque decrease? 19% 5% 10% 40% 19% 5% 10% 40% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutators in DC machines have a role of which converts none of these. high voltage DC to low voltage DC. AC to DC. Both AC to DC and DC to AC. none of these. high voltage DC to low voltage DC. AC to DC. Both AC to DC and DC to AC. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tappings of a transformer are provided at the phase end of hv side at the neutral side end of hv side at the phase end of lv side at the middle of hv side at the phase end of hv side at the neutral side end of hv side at the phase end of lv side at the middle of hv side ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating winding are used to rectify the flux density waveform at None of these interpole region. region under main pole. throughout the air gap. None of these interpole region. region under main pole. throughout the air gap. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Transformers operating in parallel will share the load depending upon their rating. leakage reactance. percentage impedance. efficiency. rating. leakage reactance. percentage impedance. efficiency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a three phase slip-ring induction motor, brushes are connected to equalizing coils. external star-connected resistors. DC supply. 3 - Φ AC supply. equalizing coils. external star-connected resistors. DC supply. 3 - Φ AC supply. ANSWER DOWNLOAD EXAMIANS APP
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