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Chemical Engineering - Fuels and Combustion

Exercise : Fuels and Combustion - Section 7
1.
The calorific value of natural gas is about __________ kcal/Nm3.
10, 000
2500
25, 000
35, 000
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Low temperature carbonisation of coal takes place at __________ °C.
300
1100
700
150
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
Critical Air Blast (CAB) value of coke is a direct measure of its
reactivity
hardness
strength
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
The function of secondary combustion air is to
pneumatically convey the pulverised coal.
completely burn the volatile matter.
burn the lumpy coal.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always
1
<1
> 1
unpredicatable
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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