Related Questions

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
Calorific value of a typical dry anthracite coal may be around __________ Kcal/kg.
A 1000
B 4000
C 8000
D 15000
Initial pressure of oxygen introduced into the 'bomb' of the bomb calorimeter for determination of calorific value of coal/fuel oil may be around __________ atm.
A 3-5
B 25-30
C 60-65
D 95-100
Bomb calorimeter is used to determine the (where, GCV - Gross Calorific Value. NCV - Net Calorific Value.)
A GCV at constant pressure
B GCV at constant volume
C NCV at constant pressure
D NCV at constant volume
A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be
A More
B Less
C Same
D Data insufficient; can't be predicted
Gross calorific value will be equal to the net calorific value for
A H2
B C2H2
C CO
D C2H6
Calorific value of dry wood may be around __________ Kcal/kg.
A 5
B 50
C 500
D 5000
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
The bituminous coal is no caking if its carbon content is
A 78-81%
B 81-85%
C 85-90%
D 90-95%
Bituminous coal
A Ignites less easily than anthracite
B Is generally coking
C Burns with smoky yellow flame
D Both B and C

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