Related Questions

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
Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C.
A 400-500
B 900-1000
C 1400-1500
D 1700-1800
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
Gross calorific value will be equal to the net calorific value for
A H2
B C2H2
C CO
D C2H6
Presence of __________ in a dry gaseous fuel does not contribute to its calorific value.
A Sulphur
B Oxygen
C Hydrogen
D Carbon
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
Which of the following constituents of a fuel does not contribute to its calorific value on combustion?
A Hydrogen
B Sulphur
C Carbon
D None of these
The calorific value of gaseous fuel is expressed in
A kJ
B kJ/kg
C kJ/m2
D kJ/m3
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
Temperature of a furnace fired with low calorific value fuel gas (i.e. lean gas) can be increased by
A Preheating the combustion air
B Oxygen enrichment of combustion air
C Preheating the fuel gas
D All of the above

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