A. Vitrain
B. Clarain
C. Durain
D. Fussain
Related Mcqs:
- Safe condition for storage of high V.M. bituminous coal is that ___________________?
A. Height of the coal heap should be < 3 metres
B. Maximum 200 tons should be stored in a heap
C. Both A. and B.
D. Neither A. nor B. - Calorific value of bituminous coal may be around ______________ Kcal/kg?
A. 500
B. 1500
C. 6500
D. 20000 - Calorific value of coal middling generated in coal washeries during washing of coal may be around _____________ Kcal/kg?
A. 1000
B. 4000
C. 6000
D. 8000 - 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 - Bituminous coal___________________?
A. Ignites less easily than anthracite
B. Is generally coking
C. Burns with smoky yellow flame
D. Both B. and C. - (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 these - 64-132) rank coal (ASTM) means a coal with 64%___________________?
A. Fixed carbon and having a heating value around 13, 200 BTU/1b
B. Ash and heating value around 13, 200 BTU/1b
C. Fixed carbon and heating value around 132 BTU/1b
D. None of these - A coal containing very high percentage of durain is called ______________ coal?
A. Bright
B. Splint
C. Non-banded
D. Boghead - Yield of coke oven gas in low temperature carbonisation of coal is about ______________ Nm3 /ton of dry coal?
A. 60
B. 160
C. 500
D. 750 - Commercial production of petrol from coal (as practised in a factory at Sasol in South Africa) is done by the ________________ of coal?
A. Hydrogenation
B. Gasification
C. Carbonisation
D. None of these
