Undercharging of coal in the by-product coke ovens results in ____________________?

Related Mcqs:

A coal having high volatile matter content will ________________?

A. Give less yield of tar and gas on carbonisation B. Burn with a small non-smoky flame C. Have a very high calorific value D. None of these...

Correct viscosity of furnace oil at the burner tip for proper atomisation is about 25 centistokes. To reduce the viscosity of high viscosity furnace oil (250 centistokes) to the correct atomisation viscosity (i.e. 25 cst), it should be preheated to about ______________°C?

A. 70 B. 85 C. 105 D. 145...

Initial pressure of oxygen introduced into the ‘bomb’ of the bomb calorimeter for determination of calorific value of coal/fuel oil may be around _____________ atm?

A. 3-5 B. 25-30 C. 60-65 D. 95-100...

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

A. Higher than B. Lower than C. Same as D. Either A. or B.; depends on the type of coal...

The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always___________________?

A. 1 B. < 1 C. > 1 D. Unpredictable...