Electrical Machines Which of the following is the largest conversion device? Synchronous machine DC machine All of these Induction machine Synchronous machine DC machine All of these Induction machine ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature core of the rotor bars of dc motors are laminated to reduce hysteresis loss. to provide better flux linkage. to reduce eddy current loss. to reduce mechanical losses. to reduce hysteresis loss. to provide better flux linkage. to reduce eddy current loss. to reduce mechanical losses. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC Shunt Motor having armature resistance of 0.5 Ω and 2A armature current at no-load, when the armature current is changed to 20A at loaded condition the speed is 1000 r.p.m. What is the speed at no-load? 963.8 r.p.m. 4575.4 r.p.m. 1037.5 r.p.m. 1130 r.p.m. 963.8 r.p.m. 4575.4 r.p.m. 1037.5 r.p.m. 1130 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase 6 pole 50 Hz induction motor is running at 5% slip.What is the speed of the motor? 1000 rpm 900 rpm 850 rpm 950 rpm 1000 rpm 900 rpm 850 rpm 950 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In shaded pole induction motors, the flux moves from ------------- region to ----------------- region respectively? unshaded, unshaded shaded, shaded unshaded, shaded shaded, unshaded unshaded, unshaded shaded, shaded unshaded, shaded shaded, unshaded ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines During no load test, an induction motor draws power only for the small copper loss. for copper loss and windage friction loss. for core loss and copper loss. for core loss and windage and friction loss. only for the small copper loss. for copper loss and windage friction loss. for core loss and copper loss. for core loss and windage and friction loss. ANSWER DOWNLOAD EXAMIANS APP
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