75) A rectangular park is 55m by 45m. A path 2.5m wide is built all around inside it. The cost of grassing the remaining park at Rs 10 per sq.m is

Rs. 20,000

Rs. 22,000

Rs. 17,200

Rs. 24,000

Answer is:

Rs. 20,000

difference in temperature of the cold water and atmospheric temperature

difference in temperature of hot water entering and cold water leaving

difference in temperature of the cold water leaving the cooling tower and the wet bulb temperature off surrounding air

None of the above

Answer is:

air becomes wetter

atmospheric temperature decreases

atmospheric temperatu re rises

air becomes drier

Answer is:

Increases

decreases

remain same

increases exponentially

Answer is: