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Chemical Engineering - Fuels and Combustion

Exercise : Fuels and Combustion - Section 7
36.
Removal of hydrogen from coke oven gas
increases its calorific value.
decreases its calorific value.
does not alter its calorific value.
is not possible on commerical scale.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
If oxygen content in the flue gas rises too high, fuel is being wasted by
incomplete combustion.
dry gas/stack gas loss.
moisture loss.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
Increase in ash content of blast furnace coke
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.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
Safe condition for storage of high V.M. bituminous coal is that
height of the coal heap should be < 3 metres.
maximum 200 tons should be stored in a heap.
both (a) and (b).
neither (a) nor (b).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
Ignition temperature of a fuel in air is __________ that in pure oxygen.
more than
less than
equal to
either more or less; depends on the type of fuel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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