Which of the following petrographic constituents of coal is non-coking ?
Which of the following petrographic constituents of coal is non-coking ?
A. Vitrain
B. Clarain
C. Durain
D. Fussain
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‘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.
(64-132) rank coal (ASTM) means a coal with 64%___________________?
(64-132) rank coal (ASTM) means a coal with 64%___________________?A. Fixed carbon and having a heat value of 13, 200 BTU/1b
B. Ash and a heating value of 13, 200 BTU/1b
C. Fixed carbon and a heating value of 132 BTU/1b
D. None of theseQuantity of coke produced from metallurgical coal may be around _____________ percent?
Quantity of coke produced from metallurgical coal may be around _____________ percent?A. 30
B. 50
C. 75
D. 95Coking time in narrow by-product coke ovens is around ______________ hours?
Coking time in narrow by-product coke ovens is around ______________ hours?A. 18
B. 48
C. 8
D. 80By-products recovery process from coal carbonisation is termed as direct, indirect and semi direct process depending upon the method of recovery of
Question: By-products recovery process from coal carbonisation is termed as direct, indirect and semi direct process depending upon the method of recovery of
[A].tar [B].
benzol [C].
ammonia [D].
none of these Answer: Option C
Explanation:
No answer description available for this question.
Lurgi coal gasifier is a pressurised ______________ bed reactor?
Lurgi coal gasifier is a pressurised ______________ bed reactor?A. Moving
B. Fixed
C. Fluidised
D. Entrained