‘Fat coals’ are those coals which have very high____________________?

Related Mcqs:

In flue gas analysis by Orsat’s apparatus, carbon monoxide is absorbed by__________________?

A. Cuprous chloride B. Potassium hydroxide C. Alkaline pyrogallol solution D. None of these...

Dry air required to burn 1 kg of carbon completely may be around ______________ kg?

A. 11 B. 2 C. 20 D. 38...

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...

Gross heating value of coal is ______________ the net heating value?

A. Higher than B. Lower than C. Same as D. None of these...

Removal of hydrogen from coke oven gas ___________________?

A. Increases its calorific value B. Decreases its calorific value C. Does not alter its calorific value D. Is not possible on commercial scale...