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 ? 18.25%. 14.28%. 16.67%. 15.30%. 18.25%. 14.28%. 16.67%. 15.30%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The field system of an alternator is usually excited 230 V AC. 110 / 220 V AC. 250 / 250 V DC. 3 - Φ, 50 Hz and 400 V. 230 V AC. 110 / 220 V AC. 250 / 250 V DC. 3 - Φ, 50 Hz and 400 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V DC machine has an armature resistance 1Ω. If the full load current is 20 A, the difference of induced voltage and generator is 20 V. 40 V. 60 V. 0 V. 20 V. 40 V. 60 V. 0 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the speed control of polyphase squirrel cage induction motor, if frequency of operation is decreased with None of these constant supply voltage V, starting torque Tst decreases either of these constant V, Tst increases None of these constant supply voltage V, starting torque Tst decreases either of these constant V, Tst increases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The flux involved in the emf equation of a transformer has average value. rms value. total value. maximum value. average value. rms value. total value. maximum value. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a lap winding dc machine number of conductors are 100 and number of parallel paths are 10. Find the average pitch 1 100 10 50 1 100 10 50 ANSWER DOWNLOAD EXAMIANS APP
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