Electrical Machines For satisfactory performance of 3-phase 480V, 60 Hz induction motor, the supply voltage at 50 Hz should be equal to 480 V. 350 V. 400 V. 420 V. 480 V. 350 V. 400 V. 420 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which machine is used for battery charging? None of these. DC shunt generator. Compounded DC generator. DC series generator. None of these. DC shunt generator. Compounded DC generator. DC series generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is expensive for same Kw output rates? AC single phase motor. Synchronous motor. DC Shunt Motor Induction motor. AC single phase motor. Synchronous motor. DC Shunt Motor Induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load and full load speed of DC motor are 1400 rpm and 1200 rpm respectively. What is the percentage speed regulation of the motor ? 14.28%. 18.25%. 16.67%. 15.30%. 14.28%. 18.25%. 16.67%. 15.30%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature shaft must be able to with stand Bending moment due to weight of the armature. All of these Any unbalanced magnetic pull on the armature core. Twisting stains 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 stains due to transmission of torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Brushes are always placed on--------------- , in order to achieve sparkles commutation? either GNA or MNA MNA GNA None of these either GNA or MNA MNA GNA None of these ANSWER DOWNLOAD EXAMIANS APP
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