Which of the following is not used as a binder in coal briquetting ?
Which of the following is not used as a binder in coal briquetting ?
A. Tar
B. Molasses
C. Pitch
D. Line
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The bright glow of a combustion process is the characteristic of __________ temperature oxidation of coal.
Question: The bright glow of a combustion process is the characteristic of __________ temperature oxidation of coal.
[A].fast & high [B].
slow & low [C].
slow & high [D].
fast & slow Answer: Option A
Explanation:
No answer description available for this question.
Critical Air Blast (CAB) value of coke is a direct measure of its__________________?
Critical Air Blast (CAB) value of coke is a direct measure of its__________________?A. Reactivity
B. Hardness
C. Strength
D. None of theseA coal having higher volatile matter content will necessarily have lower____________________?
A coal having higher volatile matter content will necessarily have lower____________________?A. Ash fusion temperature
B. Calorific value
C. Ignition temperature
D. Caking indexWhich of the following is coking ?
Which of the following is coking ?A. Vitrain
B. Fussain
C. Both A. & B.
D. Neither A. nor B.Oxygen percentage (by weight) in atmospheric air is
Question: Oxygen percentage (by weight) in atmospheric air is
[A].19 [B].
21 [C].
23 [D].
29 Answer: Option C
Explanation:
No answer description available for this question.
‘Fat’ coal means a coal having
Question: ‘Fat’ coal means a coal having
[A].low calorific value. [B].
high volatile matter, [C].
low ash content. [D].
non smoking tendency. Answer: Option B
Explanation:
No answer description available for this question.