Electrical Machines Transformers operating in parallel will share the load depending upon their percentage impedance. efficiency. rating. leakage reactance. percentage impedance. efficiency. rating. leakage reactance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator frame in an induction motor is used to provide return path for the flux. protect the whole machine. hold armature stamping in position. ventilate the armature. provide return path for the flux. protect the whole machine. hold armature stamping in position. ventilate the armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator in case the brushes are moved so as to bring them in magnetic neutral axis, then, there will be demagnetisation. cross-magnetisation. none of above. cross-magnetization as well as demagnetization. demagnetisation. cross-magnetisation. none of above. cross-magnetization as well as demagnetization. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 400 / 200 V, Y - Y connected wound rotor induction motor has 0.06 Ω rotor resistance and 0.3 Ω standstill reactance per phase. To make the starting torque equal to maximum torque of the motor the additional resistance required 0.66 Ω. 0.78 Ω. 0.24 Ω. 0.45 Ω. 0.66 Ω. 0.78 Ω. 0.24 Ω. 0.45 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following DC Motor the ratio of starting torque to full load torque is minimum? Shunt motor. Cumulative compound motor. Series motor. Differential compound motor. Shunt motor. Cumulative compound motor. Series motor. Differential compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two generators G1 and G2 are to be operated in parallel to deliver a total current of 60 A. Generator one has a terminal voltage of 280 V on no load and 240 V when supplying 40 A current. Similarly the second generator has a voltage of 300 V when on no load and 240 V when supplying of 50 A of current. The output voltage of each generator will be 256.4 V. 238.2 V. 240 V. 271.7 V. 256.4 V. 238.2 V. 240 V. 271.7 V. ANSWER DOWNLOAD EXAMIANS APP
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