Three Phase Induction Motors The 3- phase induction motor is so designed that the rotor should have ______ under running conditions. High reactance high resistance Low resistance Large slip High reactance high resistance Low resistance Large slip ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The shape of the torque/slip curve of induction motor is Straight line Parabola Rectangular parabola Hyperbola Straight line Parabola Rectangular parabola Hyperbola ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors At starting of a double squirrel cage induction motor _______ Lower cage winding has low reactance Lower winding is more effective Outer cage winding has good pf None of the listed here Lower cage winding has low reactance Lower winding is more effective Outer cage winding has good pf None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the rotor slots are made deeper, rotor resistance is ______ Increased under running conditions None of the listed here Increased at starting Decreased at starting Increased under running conditions None of the listed here Increased at starting Decreased at starting ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The air gap between stator and rotor of 3-phase induction motor ranges from ______ 4 cm to 6 cm 2 cm to 4 cm 1 cm to 2 cm 0.4 mm to 4 mm 4 cm to 6 cm 2 cm to 4 cm 1 cm to 2 cm 0.4 mm to 4 mm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The crawling in an induction motor is caused by Improper design of machine Low voltage supply Harmonics developed in the rotor High loads Improper design of machine Low voltage supply Harmonics developed in the rotor High loads ANSWER DOWNLOAD EXAMIANS APP
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