Economics of power generation Archives - MCQ and Quiz for Exams

1. Load curve helps in deciding

total installed capacity of the plant

sizes of the generating units

operating schedule of generating units

all of the above

Detailed SolutionLoad curve helps in deciding

2. Which of the following should be used for extinguishing electrical fires?

Water

Carbon tetrachloride fire extinguisher

Foam type fire extinguisher

CO2 fire extinguisher

Detailed SolutionWhich of the following should be used for extinguishing electrical fires?

3. The area under a load curve gives

average demand

energy consumed

maximum demand

none of the above

Detailed SolutionThe area under a load curve gives

4. Which of the following is the essential requirement of peak load plant?

It should run at high speed

It should produce high voltage

It should be small in size

It should be capable of starting quickly

Detailed SolutionWhich of the following is the essential requirement of peak load plant?

5. The expected useful life of an hydroelectric power station is around

15 years

30 years

60 years

100 years

Detailed SolutionThe expected useful life of an hydroelectric power station is around

6. Power plant is expected to have the longest life.

Steam

Diesel

Hydroelectric

Any of the above

Detailed SolutionPower plant is expected to have the longest life.

7. Which of the following is not necessarily an advantage of interconnecting various power stations?

Improved frequency of power supplied

Reduction in total installed capacity

Increased reliability

Economy in operation of plants

Detailed SolutionWhich of the following is not necessarily an advantage of interconnecting various power stations?

8. Generating capacity connected to the bus bars and ready to take load when switched on is known as

firm power

cold reserve

hot reserve

spinning reserve

Detailed SolutionGenerating capacity connected to the bus bars and ready to take load when switched on is known as

9. The primary reason for low power factor is supply system is due to installation of

induction motors

synchronous motors

single phase motors

d.c. motors

Detailed SolutionThe primary reason for low power factor is supply system is due to installation of

10. Which of the following power plants need the least period for installation ?

Thermal power plant

Diesel power plant

Nuclear power plant

Hydro-electric power plant

Detailed SolutionWhich of the following power plants need the least period for installation ?

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