FUELS AND COMBUSTION QUIZ

Coke oven gas constitutes mainly of

H₂ & CO

H₂ & CH₄

CH₄ & CO

H₂ & CO₂

TRUE ANSWER : ?
YOUR ANSWER : ?

Calorific value of coke even gas produced by low temperature carbonisation of coal is about __________ Kcal/Nm³.

4000

10000

2500

6500

TRUE ANSWER : ?
YOUR ANSWER : ?

Main use of soft coke is as __________ fuel.

Foundary

None of these

Blastfurnace

Domestic

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Colour

Volatile matter

Ash content

Moisture content

TRUE ANSWER : ?
YOUR ANSWER : ?

Benzene is used

For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR)

As a motor fuel

As a perfume

As an explosive

TRUE ANSWER : ?
YOUR ANSWER : ?

Calorific value of pitch creosote mixture (PCM) i.e., C.T.F.-200 is about

8800 kcal/kg

25000 kcal/kg

Same as that of coal middling

8800 kcal/m³

TRUE ANSWER : ?
YOUR ANSWER : ?

Blast furnace gas constitutes mainly of

N₂ & CH₄

N₂ & H₂

CH₄ & CO₂

N₂ & CO

TRUE ANSWER : ?
YOUR ANSWER : ?

In flue gas analysis by Orsat's apparatus, carbon monoxide is absorbed by

None of these

Potassium hydroxide

Cuprous chloride

Alkaline pyrogallol solution

TRUE ANSWER : ?
YOUR ANSWER : ?

The calorific value of natural gas is about __________ kcal/Nm³.

25, 000

35, 000

10, 000

2500

TRUE ANSWER : ?
YOUR ANSWER : ?

Soft coke is not

Used in blast furnaces

A domestic fuel

None of these

Produced by low temperature carbonisation of coal

TRUE ANSWER : ?
YOUR ANSWER : ?

↑