FUELS AND COMBUSTION QUIZ

The cooling medium used in dry quenching of coke is

Carbon dioxide

Phenolic water

Nitrogen

Air

TRUE ANSWER : ?
YOUR ANSWER : ?

The heat of combustion of a fuel

Is always negative

Is always positive

Can't be known without calculating it

Is equal to the heat of formation

TRUE ANSWER : ?
YOUR ANSWER : ?

KOH solution used in orsat apparatus absorbs

CO₂

Neither A nor B

SO₂

Both A & B

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following petrological constitutes is responsible for bright and lustrous black band of bituminous coal?

Clarain

Fussain

Vitrain

Durain

TRUE ANSWER : ?
YOUR ANSWER : ?

Coke oven gas is stripped of its H₂S and mercaptans content by

Bubbling it through dilute sulphuric acid

Absorption in wash oil

Adsorption on silica gel

Adsorption on bog iron bed

TRUE ANSWER : ?
YOUR ANSWER : ?

Gobar gas is produced by the __________ of cown dung.

None of these

Oxidation

Hydrogenation

Fermentation

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following has the highest calorific value?

Sub-bituminous coal

Lignite

Peat

Anthracite

TRUE ANSWER : ?
YOUR ANSWER : ?

Caking index of a coal is a measure of its

Reactivity

Porosity

Agglutinating (binding) properties

Abradability

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a poisonous fuel gas?

Coke oven gas

None of these

Natural gas

Blast furnace gas

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not a micro component present in coal?

Clarain

Micrinite

Liptinite

Fusinite

TRUE ANSWER : ?
YOUR ANSWER : ?

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