FUELS AND COMBUSTION QUIZ

The pyragallol solution used in orsat apparatus can absorb

Both O₂ and CO₂

All of these

Only O₂

Both O₂ and CO

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following fuels is the best for burning on chain grate stoker?

Coking coal

Caking coal

Non-caking coal

Pulverised coal

TRUE ANSWER : ?
YOUR ANSWER : ?

Naphthalene recovered from coke oven gas is used

As a fuel in furnaces

For making electrodes

As moth balls (insecticides)

As moisture proof coating on fibres

TRUE ANSWER : ?
YOUR ANSWER : ?

'Fuel' can be defined as a substance which produces heat by

All of these

Nuclear fission

Nuclear fusion

Combustion

TRUE ANSWER : ?
YOUR ANSWER : ?

Flue gas from the heating chamber of byproduct coke ovens is removed by

Forced draft fan

Natural draft

Induced draft fan

Steam ejector

TRUE ANSWER : ?
YOUR ANSWER : ?

Anthracite can be used for

All of these

Making carbon electrodes

Recarbonising steel

Blending with highly coking coal to check its swelling which helps in saving coke even walls from damage and to produce high strength coke

TRUE ANSWER : ?
YOUR ANSWER : ?

Percentage of carbon monoxide in blast furnace gas may be around

22

14

8

52

TRUE ANSWER : ?
YOUR ANSWER : ?

Caking coal is desirable for

All of these

Burning on travelling grate

Burning on firebars

Coke making

TRUE ANSWER : ?
YOUR ANSWER : ?

Fusion point of coal ash increases with increase in its __________ content.

Iron sulphate

Iron silicate

All of these

Lime and magnesia

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not a product of tar distillation?

Phenol & naphthalene

None of these

Benzol & pitch

Anthracene & creosote

TRUE ANSWER : ?
YOUR ANSWER : ?