Question: Calorific value of of blast furnace gas is around __________ KCal/Nm3.
[A].850
1800
4200
6500
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Chemical Engineering
Calorific value of coke oven gas is around __________ Kcal/Nm3.
Question: Calorific value of coke oven gas is around __________ Kcal/Nm3.
[A].900
4200
7500
2000
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
A coal that softens and fuses on heating is
Question: A coal that softens and fuses on heating is
[A].classified
carbonised
caking
non-caking
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces
Question: Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces
[A].higher amount of methane.
lower amount of hydrogen.
both (a) and (b).
higher amount of both methane and hydrogen.
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases.
Question: With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases.
[A].hydrogen
methane
unsaturated hydrocarbons
all (a), (b) and (c)
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
With increases in carbonisation temperature
Question: With increases in carbonisation temperature
[A].coke even gas yield increases.
tar yield increases.
hydrogen percentage in the coke oven gas decreases.
methane percentage in the coke oven gas increases.
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Increase in ash content of blast furnace coke
Question: Increase in ash content of blast furnace coke
[A].reduces its consumption in the furnace.
increases its consumption in the furnace.
does not affect its consumption in the furnace.
decreases its hardness and abrasion resistance.
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
A coal having high ratio of volatile matter to fixed carbon as compared to a coal having low ratio of volatile matter to fixed carbon
Question: A coal having high ratio of volatile matter to fixed carbon as compared to a coal having low ratio of volatile matter to fixed carbon
[A].is less liable to spontaneous combustion on storage.
is more difficult to ignite and produces a shorter flame.
requires smaller combustion space and less secondary air.
none of these.
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Fusion point of coal ash increases with increase in its __________ content.
Question: Fusion point of coal ash increases with increase in its __________ content.
[A].iron sulphate
iron silicate
lime and magnesia
all (a), (b) and (c)
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Efficient burning of anthracite coal requires
Question: Efficient burning of anthracite coal requires
[A].low preheat of air.
fine grinding.
high excess air.
all (a), (b) and (c).
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.