A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is

Power Systems
A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is

6

16

10

2

6

16

10

2

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Power Systems
A transmission line has self and mutual impedances of 0.8 pu and 0.2 pu. Find the positive, negative and zero sequence impedances respectively?

0.6, 0.6 and 1.2 pu

0.8, 0.8 and 1.2 pu

0.8, 0.6 and 1.2 pu

0.6, 0.8 and 1.2 pu

0.6, 0.6 and 1.2 pu

0.8, 0.8 and 1.2 pu

0.8, 0.6 and 1.2 pu

0.6, 0.8 and 1.2 pu

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Power Systems
Which of the following produces the radio interference in communication lines?

electro static induction

both 1 and 2

None of these

electro magnetic induction

electro static induction

both 1 and 2

None of these

electro magnetic induction

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Power Systems
Recovery voltage in CB is equal to

arcing period voltage.

none of these.

transient voltage.

normal frequency 50 Hz rms voltage.

arcing period voltage.

none of these.

transient voltage.

normal frequency 50 Hz rms voltage.

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Power Systems
Breaking current is a ------------------ value?

average

any of the above

RMS

maximum

average

any of the above

RMS

maximum

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Power Systems
Maximum power capacity of a transmission line can be increased by

either 1 or 2

nether 1 nor 2

decreasing reactance value

increasing voltage level

either 1 or 2

nether 1 nor 2

decreasing reactance value

increasing voltage level

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Power Systems

Power Systems A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is

Power Systems A transmission line has self and mutual impedances of 0.8 pu and 0.2 pu. Find the positive, negative and zero sequence impedances respectively?

Power Systems Which of the following produces the radio interference in communication lines?

Power Systems Recovery voltage in CB is equal to

Power Systems Breaking current is a ------------------ value?

Power Systems Maximum power capacity of a transmission line can be increased by

Power Systems
A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is

Power Systems
A transmission line has self and mutual impedances of 0.8 pu and 0.2 pu. Find the positive, negative and zero sequence impedances respectively?

Power Systems
Which of the following produces the radio interference in communication lines?

Power Systems
Recovery voltage in CB is equal to

Power Systems
Breaking current is a ------------------ value?

Power Systems
Maximum power capacity of a transmission line can be increased by