Use of preheated air for combustion of fuel in the furnace, increases the___________________?

Related Mcqs:

The gas which contributes maximum to the heating value of natural gas is __________________?

A. CO B. CO2 C. H2 D. CH4...

Percentage of carbon monoxide in blast furnace gas may be around ____________________ ?

A. 8 B. 14 C. 22 D. 52...

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...

Calorific value of coke even gas produced by low temperature carbonisation of coal is about ____________ Kcal/Nm3?

A. 4000 B. 2500 C. 6500 D. 10000...

Presence of nitrogen in combustion air does not reduce the ____________________?

A. Amount of heat liberated B. Flame temperature C. Flue gas temperature D. Any of the above...