Electrical Machines The commutator segments of DC machines are made up of copper brass copper alloy hard-drawn copper copper brass copper alloy hard-drawn copper ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature resistance of the dc motor is generally of the range 100 ohm. 0.5 ohm. 50 ohm. 0.1 ohm. 100 ohm. 0.5 ohm. 50 ohm. 0.1 ohm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of a DC Shunt motor if the load is decreased to some extent, what will happen to its speed? The speed will increase in proportion to reduction in load. The speed will increase gradually. The speed will remains almost constant. The speed will increase abruptly. The speed will increase in proportion to reduction in load. The speed will increase gradually. The speed will remains almost constant. The speed will increase abruptly. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following motors DC excitation is not required? reluctance motor hysteresis motor 3-phase synchronous generator 3-phase synchronous motor reluctance motor hysteresis motor 3-phase synchronous generator 3-phase synchronous motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 8 pole, 50 Hz single phase induction motor is running at 690 rpm. Its slip with respect to forward field is 1.92 -0.08 -1.92 0.08 1.92 -0.08 -1.92 0.08 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Field weakening control method is used for the _________ ? None of these above rated speed both A and B below rated speed None of these above rated speed both A and B below rated speed ANSWER DOWNLOAD EXAMIANS APP
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