A. Lignite
B. Bituminous coal
C. Anthracite coal
D. None of these
Related Mcqs:
- Which of the following is not used as a binder in coal briquetting ?
A. Tar
B. Molasses
C. Pitch
D. Line - Which of the following is not a binder for coal briquetting ?
A. Coal tar
B. Bitumen
C. Molasses
D. None of these - Method of maintaining fires in furnace during standby periods without undue consumption of fuel is called_________________?
A. Back draughting
B. Banking
C. Under pressurising
D. None of these - Which of the following is unsuitable fuel for producer gas manufacture ?
A. Coke
B. Anthracite
C. Coal having low fusion point of its ash
D. Coal having high fusion point of its ash - Which of the following has the highest gross calorific value ?
A. Blast furnace gas
B. Coke oven gas
C. Carburetted water gas
D. Oil refinery gas - Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing ?
A. Ash disposal problem
B. Excessive fly-ash discharge from the stack
C. High power consumption in its transportation
D. Erosion of induced draft fan blades - Which of the following has the highest flame speed ?
A. CO
B. H2
C. CH4
D. C2H6 - Which of the following fuel gases has the highest calorific value ?
A. Natural gas
B. Coal bed methane (CBM)
C. Liquefied petroleum gas (LPG)
D. Sewage gas - Out of the following fuels, the difference between the net and gross calorific value is maximum in case of_________________?
A. Pitch
B. Fuel oil
C. Blast furnace gas
D. Bituminous coal - The calorific value is the highest out of the following for__________________?
A. Producer gas
B. Water gas
C. Coke oven gas
D. Blast furnace gas
