Related Questions

Black smoke coming out of the chimney of a furnace is an indication of the use of __________ in the furnace.
A Low amount of excess combustion air
B Large quantity of excess combustion air
C Hydrocarbon fuel
D Pulverised coal as fuel
White flue gas (resembling steam) coming out of the chimney of a thermal power plant indicates that the fuel used in the boiler furnace is
A Tar
B Coke oven gas
C Pitch
D Pulverised coke
Draught produced by a tall chimney due to density difference between hot flue gas inside the Chimney and atmospheric air outside the chimney is more appropriately known as the __________ draught.
A Natural
B Induced
C Forced
D Chimney
Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of
A Less air for combustion
B Correct amount of air for combustion
C Too much air for combustion
D Pulverised coal in boilers
The draught produced by steel chimney as compared to that produced by brick chimney for the same height is
A Less
B More
C Same
D May be more or less
The draught produced, for a given height of the chimney and given mean temperature of chimney gases
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
The maximum discharge through a chimney occurs when the height of chimney is
A Infinitely long
B Around 200 meters
C Equal to the height of the hot gas column producing draught
D Outside temperature is very low
Smoke density of the flue gas going out of the chimney is measured by a
A Polarograph
B Thermal conductivity meter
C Photo electric cell
D Chromatograph
Flue gas outlet temperature from the chimney of any furnace should be ideally about __________ °C.
A 50
B 100
C 150
D 250
"is helen really going to start a journey to climb Mount Everest or is she just blowing smoke?" here 'blowing smoke' means ----
A talking about action without intent to follow throuth
B boasting with prejudice
C declaring particular target
D nonchalant expression of action

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