A. Aromatic compounds
B. Aliphatic compounds
C. Paraffins
D. Olefins
Submitted by: Muhammad Mutsadiq Umer
Related Mcqs:
- Coal tar (produced by high temperature carbonisation) is the main source of_________________?
A. Aromatic compounds
B. Aliphatic compounds
C. Paraffins
D. Olefins - Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively ______________ percent?
A. 3 & 10
B. 10 & 3
C. 10 & 20
D. 15 & 8 - Coke oven gas produced by high temperature carbonisation of coal (as compared to that produced by low temperature carbonisation), has_________________?
A. Higher calorific value
B. Lower hydrogen content
C. Both A. and B.
D. Neither A. nor B. - In low temperature carbonisation of coal as compared to high temperature carbonisation _____________ produced is less?
A. Difference in gross & net calorific value of the coke oven gas
B. Free carbon content in tar
C. Yield percentage of coke
D. Yield of ammonia present in coke oven gas - Of the total tar present in raw coke oven gas, the tar recovered in primary cooler is about _______________ percent?
A. 5
B. 25
C. 55
D. 75 - Yield of pitch from distillation of high temperature tar is around _____________ percent?
A. 10
B. 25
C. 65
D. 90 - Quantity of coke oven gas produced by high temperature carbonisation of one ton of dry coal may be around ______________ Nm3?
A. 30
B. 300
C. 3,000
D. 30,000 - The main product of high temperature carbonisation of coal is__________________?
A. Coke
B. Ammonia
C. Tar
D. Coke oven gas - 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 - In high temperature carbonisation of coal compared to low temperature carbonisation ?
A. Yield of ammonia is less
B. Aromatic content of tar is low
C. H2 content in the coke oven gas is more
D. Calorific value of the coke oven gas is lower
