Electrical Machines For P pole machine relation between electrical degrees and mechanical degrees is θelec = θmech θelec = 4/P*θmech θelec = P/2*θmech θelec = 2/P*θmech θelec = θmech θelec = 4/P*θmech θelec = P/2*θmech θelec = 2/P*θmech ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is not a part of transformer? Commutator. Conservator tank. Radiator. Tap changer. Commutator. Conservator tank. Radiator. Tap changer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 500 V, 55 kVA single phase alternator has an effective resistance of 0.5 Ω. An excitation current of 10 A produces 200 A armature current on short circuit and an emf of 450 V on per circuit. The synchronous reactance will be 2.241 Ω. 25.564 Ω. 2.781 Ω. 2.74 Ω. 2.241 Ω. 25.564 Ω. 2.781 Ω. 2.74 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load and full load speed of DC mototr are 1400 rpm and 1200 rpm respectively. What is the percentage speed regulation of the motor? 16.67%. 18.25%. 14.28%. 15.30%. 16.67%. 18.25%. 14.28%. 15.30%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Iron losses in a DC machine are independent of variation in load. speed. voltage. speed and voltage. load. speed. voltage. speed and voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following bearings and their uses are correct both A and B neither 1 nor 2 ball bearings → small machines roller bearings → large machines both A and B neither 1 nor 2 ball bearings → small machines roller bearings → large machines ANSWER DOWNLOAD EXAMIANS APP
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