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Chemical Engineering - Fuels and Combustion

Exercise : Fuels and Combustion - Section 9
41.
Octane number of 2, 2, 4 - trimethyl pen-tane is
0
100
in between 0 and 100
more than 100
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
Which of the following has the highest flame speed ?
CO
H2
CH4
C2H6
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
Coke ovens in steel plant are heated by
electricity
coke oven gas
mixed gas
both(b) & (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
Coke oven gas is a better fuel than blast furnace gas, because of its higher
calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity).
adiabatic flame temperature.
heat release rate (thus requiring smaller combustion chamber).
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
Short/intense flame is produced during combustion of gaseous fuel by using
high amount/current of combustion air.
low amount/current of combustion air.
preheated secondary air.
very little excess air.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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