In which'of the following power plants the maintenance cost is usually high?
Correct answer: C. Thermal power plants
- A. Nuclear power plant
- B. Hydro-electric power plants
- C. Thermal power plants
- D. Diesel engine power plants
Explanation
Thermal plants contain boilers, turbines, coal-handling systems and auxiliaries that require frequent servicing, so their maintenance cost is generally high. Diesel plants usually have high fuel costs, while hydro plants usually have lower routine maintenance costs.
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