Question: Air/gas ratio for complete combustion will be the highest for
[A].LPG
gobar gas
coke oven gas
carburetted water gas
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Chemical Engineering
Calorific value of both the solid & liquid fuels can be determined by using __________ calorimeter.
Question: Calorific value of both the solid & liquid fuels can be determined by using __________ calorimeter.
[A].Junker’s
Bomb
Boy’s
none of these
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
__________ process is meant for direct hydrogenation of coal to produce liquid fuel.
Question: __________ process is meant for direct hydrogenation of coal to produce liquid fuel.
[A].Fischer-Tropsch
Bergius
Lurgi
None of these
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Main use of soft coke is as __________ fuel.
Question: Main use of soft coke is as __________ fuel.
[A].domestic
blastfurnace
foundary
none of these
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Advantages of fluidised bed combustion are
Question: Advantages of fluidised bed combustion are
[A].reduced NOx formation in flue gas.
lower furnace operating temperature.
high heat transfer rate.
all (a), (b) & (c).
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Orsat apparatus
Question: Orsat apparatus
[A].gives flue gas analysis on dry basis.
determines N2 in flue gas indirectly.
can’t determine CO in flue gas, if it is < 0.2%.
all (a), (b) & (c).
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Bunsen burner is an example of a/an __________ burner.
Question: Bunsen burner is an example of a/an __________ burner.
[A].inside mixing/premix type
outside mixing/diffusion flame/nozzle mix type.
rotary cup.
submerged combustion.
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Combustion of pulverised coal compared to the lumpy coal
Question: Combustion of pulverised coal compared to the lumpy coal
[A].provides better control of furnace temperature.
facilitates combustion with lower excess air.
provides higher thermal efficiency & flame temperature.
all (a), (b) & (c).
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Deficiency of combustion air during combustion of a gaseous fuel
Question: Deficiency of combustion air during combustion of a gaseous fuel
[A].lengthens the flame.
causes heat loss of fuel by its partial combustion.
both (a) & (b).
shortens the flame.
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
In general, the limit of inflammability/explosion limit of fuel gases is widened by the
Question: In general, the limit of inflammability/explosion limit of fuel gases is widened by the
[A].increase in gas pressure.
increase in temperature (i.e. preheating).
use of pure oxygen for combustion instead of air.
all (a), (b) & (c).
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.