Q. With reference to ‘Coal-fired Thermal Power Plants’, which of the following statements is/are correct?
Select the correct answer using the code given below:
Q. With reference to ‘Coal-fired Thermal Power Plants’, which of the following statements is/are correct?
Select the correct answer using the code given below:
The correct option is D 1, 2 and 3
Explanation:
Statement 1 is correct: Fly ash can be used as prime material in many cement-based products, such as poured concrete, concrete block, and brick. One of the most common uses of fly ash is in Portland cement concrete pavement or PCC pavement.
Statement 2 is correct: The waste heat from the boilers and heating processes increases the temperature of the cooling water. Discharge of hot water may increase the temperature of the receiving water by 10 to 15 °C above the ambient water temperature. This is thermal pollution. An increase in water temperature decreases dissolved oxygen in the water which adversely affects aquatic life.
Statement 3 is correct: Thermal power plants are major contributors to anthropogenic carbon emission, hence these are a major cause of global warming.
Explanation:
Statement 1 is correct: Fly ash can be used as prime material in many cement-based products, such as poured concrete, concrete block, and brick. One of the most common uses of fly ash is in Portland cement concrete pavement or PCC pavement.
Statement 2 is correct: The waste heat from the boilers and heating processes increases the temperature of the cooling water. Discharge of hot water may increase the temperature of the receiving water by 10 to 15 °C above the ambient water temperature. This is thermal pollution. An increase in water temperature decreases dissolved oxygen in the water which adversely affects aquatic life.
Statement 3 is correct: Thermal power plants are major contributors to anthropogenic carbon emission, hence these are a major cause of global warming.
