Electrical Machines Which one of the following statement is correct ? In an induction motor if the air gap is increased then its speed will increase its speed will reduce its power factor will reduce its efficiency will improve its speed will increase its speed will reduce its power factor will reduce its efficiency will improve ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will happen if the the supply terminals are reversed in case of a DC shunt motor? The motor will run in reverse direction. 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 motor will run in reverse direction. 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. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output indicate on the name plate of any motor is always the Output power at the shaft. Gross power. Power drawn in KW. Power drawn in KVA. Output power at the shaft. Gross power. Power drawn in KW. Power drawn in KVA. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature resistance control method is used for the _______ ? both 1 and 2 above rated speed None of these below rated speed both 1 and 2 above rated speed None of these below rated speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the temperature of armature resistance is increased, the speed of a series motor would None of above. increase. not change. decrease. None of above. increase. not change. decrease. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two generators G1 and G2 are to be operated in parallel to deliver a total current of 60 A. Generator one has a terminal voltage of 280 V on no load and 240 V when supplying 40 A current. Similarly the second generator has a voltage of 300 V when on no load and 240 V when supplying of 50 A of current. The output voltage of each generator will be 256.4 V. 238.2 V. 240 V. 271.7 V. 256.4 V. 238.2 V. 240 V. 271.7 V. ANSWER DOWNLOAD EXAMIANS APP
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