FUELS AND COMBUSTION QUIZ

The sequence of absorption in flue gas analysis by Orsat's apparatus is respectively

CO, O₂, CO₂

CO₂, CO, O₂

O₂, CO₂, CO

CO₂, O₂, CO

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not endothermic?

Partial oxidation

Cracking

Reforming

Gasification

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Lime and magnesia

Iron sulphate

Iron silicate

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ present in coal is not determined in its ultimate analysis.

Nitrogen

Fixed carbon

Total carbon

Hydrogen

TRUE ANSWER : ?
YOUR ANSWER : ?

Natural draft created by the chimney depends upon

Temperature of the flue gas

Its height

Both A & B

Neither A nor B

TRUE ANSWER : ?
YOUR ANSWER : ?

Calorific values of both the solid as well as the liquid fuels can be determined by __________ calorimeter.

Junkar's

None of these

Bomb

Boy's

TRUE ANSWER : ?
YOUR ANSWER : ?

Catalyst used in Fischer-Tropsch process is

Nickel

Thorium oxide

Alumina

Zinc oxide

TRUE ANSWER : ?
YOUR ANSWER : ?

The calorific value of producer gas is around __________ kcal/Nm³

500

9000

1300

4500

TRUE ANSWER : ?
YOUR ANSWER : ?

Deficiency of combustion air during combustion of a gaseous fuel

Shortens the flame

Both A & B

Causes heat loss of fuel by its partial combustion

Lengthens the flame

TRUE ANSWER : ?
YOUR ANSWER : ?

Benzene is used

As an explosive

As a motor fuel

As a perfume

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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