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Chemical Engineering - Fuels and Combustion

Exercise : Fuels and Combustion - Section 8
11.
Coke compared to the coal from which it has been made, contains
less volatile matter.
more carbon.
greater percentage of ash.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
A gaseous fuel in order to develop luminousity on burning, must contain
carbon monoxide
hydrocarbons
hydrogen
oxygen
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Nitrogen present in the flue gas is determined in the orsat apparatus by absorbing it in
KOH
ammoniacal cuprous chloride
pyrogallol solution
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
The lowest temperature, at which a solid fuel produces enough vapors to support continuous combustion, is called
fire point
smoke point
burning temperature
kindling temperature
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
A coal having high volatile matter content will
give less yield of tar and gas on carbonisation.
burn with a small non-smoky flame.
have a very high calorific value.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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