Economics of power generation

21. Which of the following is not a method for estimating depreciation charges?

Sinking fund method
Straight line method
Diminishing value method
Halsey

Detailed SolutionWhich of the following is not a method for estimating depreciation charges?

22. Which of the following generating station has minimum ruiyiing cost ?

Nuclear
Hydro
Thermal
Diesel

Detailed SolutionWhich of the following generating station has minimum ruiyiing cost ?

23. The increased load during summer months is due to

increased business activity
increased water supply
increased use of fans and air conditioners
none of the above

Detailed SolutionThe increased load during summer months is due to

24. A synchronous condenser is virtually which of the following?

Induction motor
Under excited synchronous motor
Over excited synchronous motor
D.C. generator

Detailed SolutionA synchronous condenser is virtually which of the following?

25. A company can raise funds through

fixed deposits
shares
bonds
any of the above

Detailed SolutionA company can raise funds through

26. The load factor of domestic load is usually

10 to 15%
30 to 40%
50 to 60%
60 to 70%

Detailed SolutionThe load factor of domestic load is usually

27. Which of the following, in a thermal power plant, is not a fixed cost?

Fuel cost
Interest on capital
Depreciation
Insurance charges

Detailed SolutionWhich of the following, in a thermal power plant, is not a fixed cost?

28. In a power plant if the maximum demand on the plant is equal to the plant capacity, then

Plant reserve capacity will be zero
Diversity factor will be unity
Load factor will be unity
Load factor will be nearly 60%

Detailed SolutionIn a power plant if the maximum demand on the plant is equal to the plant capacity, then

29. An induction motor has relatively high power factor at

rated r.p.m.
no load
20 percent load
near full load E. none of the above

Detailed SolutionAn induction motor has relatively high power factor at

30. Which of the following is not an operating cost ?

Maintenance cost
Fuel cost
Salaries of high officials
Salaries of operating staff

Detailed SolutionWhich of the following is not an operating cost ?

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