FUELS AND COMBUSTION QUIZ

Main constituent of natural gas is

CH₄ (upto 90%)

C₃H₈

C₂H₆

H₂

TRUE ANSWER : ?
YOUR ANSWER : ?

Main constituent of the gas produced from a gobar gas plant is

CH₄

CO₂

H₂

CO

TRUE ANSWER : ?
YOUR ANSWER : ?

The fuel ratio of a coal is

Neither A nor B

The ratio of its percentage of fixed carbon to that of volatile matter

Both A and B

Helpful in estimation of its rank

TRUE ANSWER : ?
YOUR ANSWER : ?

Commercial production of petrol from coal (as practised in a factory at Sasol in South Africa) is done by the __________ of coal.

Hydrogenation

Carbonisation

None of these

Gasification

TRUE ANSWER : ?
YOUR ANSWER : ?

Number of macrocomponents present in coal according to Stopes are

Five

Four

Two

Six

TRUE ANSWER : ?
YOUR ANSWER : ?

The calorific value of L.D. converter gas is about __________ Kcal/Nm³ .

800

1800

4500

10000

TRUE ANSWER : ?
YOUR ANSWER : ?

Degree of carbonisation of coal during coke making can be roughly judged by the __________ of the coke produced.

Volatile matter

Ash content

Moisture content

Colour

TRUE ANSWER : ?
YOUR ANSWER : ?

Shatter index of the coke is a measure of its

Reactivity

None of these

Bulk density

Strength

TRUE ANSWER : ?
YOUR ANSWER : ?

In high temperature carbonisation (as compared to low temperature carbonisation) of coal

All of these

Coke oven gas yield is more

Tar yield is less but free carbon in tar is more

Calorific value of coke oven gas is less

TRUE ANSWER : ?
YOUR ANSWER : ?

High sulphur (4-6%) coal in India are found in

Assam

Bengal

Andhra Pradesh

Madhya Pradesh

TRUE ANSWER : ?
YOUR ANSWER : ?

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