Correct AnswerB. To cool down the water from the condenser
Quick Explanation
A cooling tower rejects waste heat from the condenser cooling-water circuit to the atmosphere, lowering the water temperature so it can be recirculated through the condenser.
Detailed Explanation
Concept & Reasoning
The condenser transfers heat from exhaust steam to circulating cooling water. The cooling tower then cools that warmed water mainly by evaporative heat and mass transfer. Thus the condenser and cooling tower form two distinct stages of heat rejection.
How to Solve It in the Exam
Condenser cools/condenses steam; cooling tower cools condenser water.
Important Exam PointTrack which fluid each component acts on.
Related Revision Path
This question sits in the revision path Power Plant Engineering → Steam Power Plants → Cooling System .
