A. As a motor fuel blend
B. For producing benzene, toluene & xylene by its distillation
C. Both A. & B.
D. Neither A. nor B.
Related Mcqs:
- Light oil whose major component is Benzol, is obtained by the distillation of crude tar in the temperature range of _____________ °C?
A. 80-170
B. 200-300
C. 250-270
D. 280-300 - Main constituents of Benzol are ____________________?
A. Benzene, toluene & xylene
B. Tar & creosote
C. Ammonia & phenol
D. Anthracene & phenol - Which of the following would require least amount of secondary air for combustion ?
A. Coke breeze containing 25% ash and 2% volatile matter
B. Anthracite containing 10% volatile matter and 8% ash
C. Bituminous coal containing 20% ash and 25% volatile matter
D. Semi-bituminous coal containing 25% ash and 20% volatile matter - Very ______________ coals are completely devoid of cokability i.e., it is non-coking ?
A. Young
B. Mature
C. Both A & B
D. Neither A nor B - In general, the limit of inflammability/explosion limit of fuel gases is widened by the__________________?
A. Increase in gas pressure
B. Increase in temperature (i.e. preheating)
C. Use of pure oxygen for combustion instead of air
D. All A., B. & C. - Calorific value of a typical dry anthracite coal may be around _____________ Kcal/kg?
A. 1000
B. 4000
C. 8000
D. 15000 - Naphthalene is removed from coke oven gas by________________?
A. Scrubbing with wash oil (a petroleum product)
B. Adsorbing on bog iron bed
C. Absorbing in vetro-coke solution
D. None of these - Which of the following fuel gases is heavier than air ?
A. Blast furnace gas
B. Coke oven gas
C. Natural gas
D. Water gas - Ratio of primary air to secondary air increases with increase in the rank of coal, because the__________________?
A. High rank coals have higher amount of volatile matter
B. Ratio of fixed carbon to volatile matter increases
C. Oxygen content progressively decreases
D. Calorific value of the coal increases - Kopper-Totzek coal gasifier_________________?
A. Can give ammonia synthesis gas (H2 + N2)
B. Is a moving bed reactor
C. Cannot use coking coal
D. Operate at very high pressure
