The main function of primary air in pulverised coal fired burner is to_________________?

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...

With increase in the oxygen content of the coal, its ______________ decreases?

A. Calorific value B. Caking power C. Both A. & B. D. Neither A. nor B....

In low temperature carbonisation (as compared to high temperature carbonisation) of coal__________________?

A. Ammonia yield is more B. Aliphatic tar is produced C. Free carbon in tar is more D. All A., B. and C....

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...

Increase in ash content of blast furnace coke_________________?

A. Reduces its consumption in the furnace B. Increases its consumption in the furnace C. Does not affect its consumption in the furnace D. Decreases its hardness and abrasion resistance...