Electrical Machines Which of the following is not a part of transformer? Conservator tank. Tap changer. Radiator. Commutator. Conservator tank. Tap changer. Radiator. Commutator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature core of a DC machine is laminated to minimise mechanical loss hysteresis loss eddy-current loss temperature rise mechanical loss hysteresis loss eddy-current loss temperature rise ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, the brushes remain in contact with conductors which lie in the inter polar gaps. lie under north pole. lie under south pole. there is no hard and fast rule for this. lie in the inter polar gaps. lie under north pole. lie under south pole. there is no hard and fast rule for this. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V DC series motor takes 40 A when giving its rated output at 1500 rpm. Its resistance is 0.3 ohms. The value of resistance which must be added to obtain rated torque at 1000 rpm is 5.7 ohms. 6 ohms. 1.9 ohms. 2.2 ohms. 5.7 ohms. 6 ohms. 1.9 ohms. 2.2 ohms. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In electric locomotive which of the following motor are used ? Shunt motor. Synchronous motor. Separately compound motor. DC series motor. Shunt motor. Synchronous motor. Separately compound motor. DC series motor. 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. Calculate the back emf produced when it is running at a speed of 1500 rpm. 240 volt. 220 volt. 440 volt. 230 volt. 240 volt. 220 volt. 440 volt. 230 volt. ANSWER DOWNLOAD EXAMIANS APP
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