Electrical Engineering : Power Systems QUESTIONS AND ANSWERS :: part1 : 1 to 5
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.What is the maximum value of a load which consume 500 KWh per day at a load factor of 0.40, if the consumer increases the load factor of 0.50 without increasing the maximum demand? |
| 52.08 kW |
| 50.8 kW |
| 4.5 kW |
| 60 kW |
2.For equilateral spacing of conductors of an untrasposed 3-phase line, we have |
| balanced receiving end voltage and no communication interference |
| unbalanced receiving end voltage and no communication interference |
| balanced receiving end voltage and communication interference |
| unbalanced receiving end voltage and communication interference. |
3.A 100 km transmiesion line ia deaigned for a nominal voltage of 132 kV and conaiala of one conductor per phase. The line reactance is 0.726 ohm/km. The static transmission capacity of the line, in Megawatts, would be |
| 132 |
| 240 |
| 416 |
| 720 |
4.In a DC transmission line |
| it is necessary for the sending end and receiving end to be operated in synchronism. |
| the effects of inductive and capacitive reactances are greater than in an AC transmission line of the same rating. |
| there are no effects due to inductive and capacitive reactances. |
| power transfer capability is limited by stability considerations. |
5.A 100 km long transmission line is loaded at 110 kV.if the loss of line is 5 MW and the load is 150 MVA, the resistance of the line is |
| 8.06 ohms per phase |
| 0.806 ohms per phase |
| 0.0806 ohms per phase |
| 80.6 ohms per phase |
More Power Systems QUESTIONS AND ANSWERS available in next pages
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