Calorific value of coal middling generated in coal washeries during washing of coal may be around _____________ Kcal/kg?

Related Mcqs:

The maximum adiabatic flame temperature in air is _____________ the maximum flame temperature in pure oxygen?

A. Lower than B. Higher than C. Same as D. Not related to...

Catalyst used in Fischer-Tropsch process is_______________?

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

Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler ?

A. Multicyclones B. Bag filter C. Wet scrubber D. Hydrocyclones...

Hardgrove Grindability index of four coal samples are given below. Which of them is the easiest to grind ?

A. 50 B. 70 C. 85 D. 100...

Which of the following accentuates clinkering trouble on furnace grate burning coal ?

A. Low reactivity of carbonised residue containing high proportions of iron & sulphur B. Low forced draught and fuel bed temperature C. Thick fire bed and preheated primary air D. All A., B. and C....