Volumetric ratio of N2 to O2 in dry atmospheric air is ______________?

Related Mcqs:

Calorific value of blast furnace gas is around _____________ KCal/Nm3?

A. 850 B. 1800 C. 4200 D. 6500...

Which is the most matured coal ?

A. Lignite B. Bituminous C. Semi-anthracite D. Anthracite...

Low temperature oxidation of stored coal results in the________________?

A. Decrease in its caking power & calorific value B. Decrease in its carbon & hydrogen content C. Increase in its oxygen content D. All A., B. and A....

A carbonaceous fuel (containing no H2 or hydrocarbons) is burnt and the resulting flue gas contains 21% CO2. It means that___________________?

A. 21% excess air has been used for combustion B. 21% excess oxygen has been used for combustion C. Complete combustion of fuel has taken place D. No excess air has been used for combustion...

Calorific value of tar is about _____________ Kcal/kg?

A. 8800 B. 12000 C. 14000 D. 16000...