Which of the following is not a by-product recovered in a high temperature coal carbonisation plant ?

A. Flame length
B. Flame temperature
C. Quantity of flue gas
D. Ignition temperature

A. CO & H2
B. CO & N2
C. CO2 & H2
D. CH4 & H2

A. Increases
B. Decreases
C. Remain same
D. Either A. or B., depends on other factors

A. Lengthens the flame
B. Tends to shorten the flame
C. Does not affect the flame length
D. Increases the flame temperature

A. Abradability
B. Reactivity
C. Agglutinating (binding) properties
D. Porosity

A. Blast furnace gas
B. Coke oven gas
C. Sewage gas
D. Natural gas