Three Phase Induction Motors For higher efficiency of 3-phase induction motor, the slip should be 1 As small as possible Very large Large 1 As small as possible Very large Large ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The approximate efficiency of a 3-phase , 50 Hz, 4 pole induction motor running at 1350 rpm is ______ 90% 65% 40% None of the listed here 90% 65% 40% None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors When a 3-phase induction motor is at no load, the slip is ______ 0.5 1 0.2 Practically zero 0.5 1 0.2 Practically zero ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The torque developed in the cage induction motor with auto-starter is k2/torque with direct switching k/torque with direct switching K2 × torque with direct switching K × torque with direct switching k2/torque with direct switching k/torque with direct switching K2 × torque with direct switching K × torque with direct switching ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In an induction motor if air gap increased Windage losses will be more Copper loss will reduce The power factor will be low Bearing friction will reduce Windage losses will be more Copper loss will reduce The power factor will be low Bearing friction will reduce ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Friction and windage loss of a 3 phase induction motor are Remains the same at all loads Minimum at no load Maximum at no load None of the listed here Remains the same at all loads Minimum at no load Maximum at no load None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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