Electrical Machines What is power factor of a 3 - φ induction motor at no load? Low. High. Equal to 1. Same as full load. Low. High. Equal to 1. Same as full load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor the speed can be increased by Increasing the armature current. Increasing the field current. Increasing the field current. Decreasing the field current. Increasing the armature current. Increasing the field current. Increasing the field current. Decreasing the field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors with armature resistance of 0.6 ohm. Calculate the starting current flowing through the armature if the supply voltage is 240 volt. 800 Amp. 400 Amp. 320 Amp. 0.5 Amp. 800 Amp. 400 Amp. 320 Amp. 0.5 Amp. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of a conductively compensated DC series motor, the compensating winding is provided In parallel with the field winding. In parallel with the armature winding. As a separate unit. In series with the armature winding. In parallel with the field winding. In parallel with the armature winding. As a separate unit. In series with the armature winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator without commutator is a DC generator DC motor induction motor AC generator DC generator DC motor induction motor AC generator ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature shaft must be able to withstand any unbalanced magnetic pull on the armature core. twisting strains due to transmission of torque. bending moment due to weight of the armature. All of these any unbalanced magnetic pull on the armature core. twisting strains due to transmission of torque. bending moment due to weight of the armature. All of these ANSWER DOWNLOAD EXAMIANS APP
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