Which of the following plant have highest life span?

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PGCIL NER DT (Electrical) 27 Feb 2022 Official Paper
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  1. Nuclear 
  2. Coal power 
  3. Hydro power 
  4. Diesel generating station 

Answer (Detailed Solution Below)

Option 3 : Hydro power 
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The hydropower plant has the highest life span of about 50-60 years.

Comparison between the thermal, hydro, and nuclear power plant

Parameter

Thermal

Hydro

Nuclear

Location

Near coal fields

Hilly areas

Remote areas generally desert

Fuel

Coal

Water

Uranium

Initial cost

Lowest

High

Highest

Running cost

Highest

Lowest

High

Life span

Moderate (25-30 years)

Highest (50-60 years)

Lowest (15-20 years)

Stand by loss

Highest

Lowest

High

Efficiency

Lowest

High

Moderate

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