Electrical Machines Which of the following machines have highest power factor with respect to magnetizing current? Closed slot type machines. Semi closed slot type machine. Open slot type machines. Any of the above. Closed slot type machines. Semi closed slot type machine. Open slot type machines. Any of the above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Example of double excited machine is None of these DC Shunt Motor Synchronous motor. Both are correct. None of these DC Shunt Motor Synchronous motor. Both are correct. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A single-winding single-phase motor has low starting torque. high starting torque. zero starting torque. starting torque equal to full-load torque. low starting torque. high starting torque. zero starting torque. starting torque equal to full-load torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Conservator tank is used to act as an oil storage. to take up the expansion of oil due to temperature rise. None of these for better cooling of transformer. to act as an oil storage. to take up the expansion of oil due to temperature rise. None of these for better cooling of transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A slip ring Induction motor runs at 290 rpm at full load, when connected to 50 Hz supply. Determine the number of poles and slip. P = 20, s = 3.33 %. P = 50, s = 4.43 %. P = 40, s = 5.79 %. P = 60, s = 0.96 %. P = 20, s = 3.33 %. P = 50, s = 4.43 %. P = 40, s = 5.79 %. P = 60, s = 0.96 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchronous motor is supplying a load at unity power factor. If the load on the motor is increased keeping its excitation and terminal voltage constant, the power factor will remain the same None of these will become lagging will become leading will remain the same None of these will become lagging will become leading ANSWER DOWNLOAD EXAMIANS APP
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