The draught produced, for a given height of the chimney and given mean temperature of chimney gases________?
Aremains the same irrespective of outside air temperature
Bdecreases with increase in outside air temperature
Cmay increase or decrease with increase in outside air temperature
Dincreases with increase in outside air temperature
Correct answer
B. decreases with increase in outside air temperature
Explanation
The correct answer is decreases with increase in outside air temperature.