- (A) less smoke
- (B) more draught
- (C) less chimney gas temperature
- (D) all of the above
Electrical Engineering Mcqs
- (A) air fans
- (B) steam jet
- (C) fan or steam jet
- (D) all of the above
- (A) less
- (B) more
- (C) same
- (D) not predictable
- (A) forced fan
- (B) chimney
- (C) steam jet
- (D) only motion of locomotive
- (A) induced fan
- (B) forced fan
- (C) induced and forced fan
- (D) all of the above
- (A) to produce draught to accelerate the combustion of fuel
- (B) to discharge gases high up in the atmosphere to avoid hazard
- (C) to reduce the temperature of the hot gases discharged
- (D) none of the above
- (A) less
- (B) more
- (C) same
- (D) may be more or less
- (A) decreases if the chimney gas temperature increases
- (B) increases if the chimney gas temperature increases
- (C) remains same irrespective of chimney gas temperature
- (D) may increase or decrease
- (A) decreases with increase in outside air temperature
- (B) increases with increase in outside air temperature
- (C) remains the same irrespective of outside air temperature
- (D) may increase or decrease with increase in outside air temperature
- (A) due to the fact that furnace gases being light go through the chimney giving place to cold air from outside to rush in
- (B) due to the fact that pressure at the grate due to cold column is higher than the pressure at the chimney base due to hot column
- (C) due to the fact that at the chimney top the pressure is more than its environmental pressure
- (D) all of the above
