A. Ignites less easily than anthracite
B. Is generally coking
C. Burns with smoky yellow flame
D. Both B. and C.
Related Mcqs:
- In high temperature carbonisation (as compared to low temperature carbonisation) of coal___________________?
A. Coke oven gas yield is more
B. Tar yield is less but free carbon in tar is more
C. Calorific value of coke oven gas is less
D. All A., B. and C. - Which of the following petrological constitutes is responsible for bright and lustrous black band of bituminous coal ?
A. Vitrain
B. Clarain
C. Durain
D. Fussain - 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 - In flue gas analysis by Orsat’s apparatus, carbon monoxide is absorbed by__________________?
A. Cuprous chloride
B. Potassium hydroxide
C. Alkaline pyrogallol solution
D. None of these - A gaseous fuel in order to develop luminosity on burning, must contain __________________?
A. Carbon monoxide
B. Hydrocarbons
C. Hydrogen
D. Oxygen - Lurgi coal gasifier is a pressurised ______________ bed reactor?
A. Moving
B. Fixed
C. Fluidised
D. Entrained - Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler ?
A. Multicyclones
B. Bag filter
C. Wet scrubber
D. Hydrocyclones - Which of the following has the highest heat of combustion ?
A. H2
B. CO
C. CH4
D. C2H6 - Which of the following will generate maximum volume of product of complete combustion (Nm3/Nm3 of fuel) ?
A. Carburetted water gas
B. Blast furnace gas
C. Natural gas
D. Producers’ gas
