Electrical Machines Which of the following is the largest conversion device? All of these Synchronous machine DC machine Induction machine All of these Synchronous machine DC machine Induction machine ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors are preferred in lifts? DC series motors. None of these DC compound motors. DC shunt motors. DC series motors. None of these DC compound motors. DC shunt motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If an additional resistance is connected in series with a DC series motor operating at rated speed, the speed of the motor will Remain unaltered. Increase. Oscillate around the normal speed. Reduce. Remain unaltered. Increase. Oscillate around the normal speed. Reduce. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The total core loss of a 400 V, 50 Hz transformer is 2400W, when it is supplied by 200 V, 25 Hz loss is 800W. Calculate eddy current loss and hysteresis loss? 800W, 1600W 1000W , 1400W 1400W, 1000W 1600W, 800W 800W, 1600W 1000W , 1400W 1400W, 1000W 1600W, 800W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the supply terminal of a DC shunt motor are interchanged The motor will run much faster in the same direction. The motor will stop. The motor will run at its normal speed in the same direction as before. The direction of rotation will reverse. The motor will run much faster in the same direction. The motor will stop. The motor will run at its normal speed in the same direction as before. The direction of rotation will reverse. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Where the shunt generators are widely used? Where often load fluctuation is occurred. Where a constant voltage is required over a narrow load range. Where the load is very high. Where voltage variation is needed over a wide load range. Where often load fluctuation is occurred. Where a constant voltage is required over a narrow load range. Where the load is very high. Where voltage variation is needed over a wide load range. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS