Preheating of combustion air is done to ___________________?

Related Mcqs:

To avoid fire by spontaneous combustion of coal due to its low temperature oxidation, it should be stored in___________________?

A. Shallow and small piles B. Fine sizes without the presence of any lump C. Closed space without any ventilation facility D. Large heaps with small surface to volume ratio...

Catalyst used in Fischer-Tropsch process is_______________?

A. Nickel B. Zinc oxide C. Alumina D. Thorium oxide...

A sample of natural gas containing 80% methane (CH4) and rest nitrogen (N2) is burnt with 20% excess air. With 80% of the combustibles producing CO2 and the remainder going to CO, the Orsat analysis in volume percent is_________________?

A. CO2 : 6.26, CO : 1.56, O2 : 3.91, H2O :15.66, N2 : 72.60 B. CO2 : 7.42, CO : 1.86, O2 : 4.64, N2:86.02 C. CO2 : 6.39, CO : 1.60, O2 : 3.99, H2O:25.96, N2:72.06 D. CO2 : 7.60, CO : 1.90, O2 : 4.75, N2 : 85.74...

High pressure coal gasification is employed in ________________ process?

A. Lurgi B. Kopper-Totzek C. Winkler D. None of these...

Fossil fuels mean___________________?

A. Solid fuels B. Liquid fuels C. Those fuels which are found in the crust of earth D. Premature fuels with low calorific value...