Economics of Power Generation

Which of the following plants is almost inevitably used as base load plant? A. Diesel engine plant B. Gas turbine plantC. Nuclear power plant D. Pumped storage plant

An over excited synchronous motor on no load is known as__________? A. synchronous condenser B. generator C. induction motor D. alternator

Which of the following source of power is least reliable? A. Solar energy B. Geothermal power C. Wind powerD. iMHD

Which of the following is not a method for estimating depreciation charges? A. Sinking fund method B. Straight line method C. Diminishing value methodD. Halsey’s 50—50 formula

For a diesel generating station the useful life is expected to be around_________Years? A. 15 to 20 years B. 20 to 50 years C. 50 to 75 years D. 75 to 100 years

Which of the following is not necessarily an advantage of interconnecting various power stations? A. Improved frequency of power supplied B. Reduction in total installed capacity C. Increased reliability D. Economy in operation of…

__________ will be least affected due to charge in supply voltage frequency. A. Electric clock B. Mixer grinder C. Ceiling fanD. Room heater

In an interconnected system, the diversity factor of the whole system: A. remains unchanged B. decreasesC. increases D. none of the above

For a consumer the most economical power factor is generally____________? A. 0.5 lagging B. 0.5 leadingC. 0.95 lagging D. 0.95 leading

Which of the following is the disadvantage of a synchronous condenser? A. High maintenance cost B. Continuous losses in motor C. NoiseD. All of the above