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SSC JE EE: Power System Booster Quiz-8

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Question 1

An electric machine consumes a power of 500 W per hour. What will be cost of energy consumption in a year. (cost per unit = 4.5 Rs) (Assume non-leap year)

Question 2

A power station has a maximum demand of 10000 KW. The annual load factor is 60% and plant capacity factor is 50%. What is the reserve capacity of the plant?

Question 3

Water hammer occurs in

Question 4

In a power network, 380 kV is recorded at a 400 kV bus. A 60 MVAR, 400 kV bus. A 60 MVAR, 400 kV shunt reactor is connected to the bus. What is the reactive power absorbed by the shunt reactor?

Question 5

Which among the following are suitable for improving the transient stability limits of a power system?

_{i. Increase system voltage by AVR}
_{ii. Use high sped excitation systems}
_{iii. Use high sped reclosing breakers}
_{iv. Increase system frequency}

Question 6

MHO relays are used for protection of

Question 7

Which of the following statement is true for a power system with lagging power factor?

Question 8

The voltage stress will be maximum in an underground cable at

Question 9

The insulation resistance for 100km is 10MΩ, then calculate insulation resistance for 500 km is ____?

Question 10

A reactance relay is

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