FUELS AND COMBUSTION QUIZ

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

Nuclear fusion

Combustion

All of these

Nuclear fission

TRUE ANSWER : ?
YOUR ANSWER : ?

Highly reactive coke have lower

Critical air blast (CAB) value

Both B and C

Coke reactivity index (CRI)

Porosity

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Alkaline pyragllol solution

Cuprous chloride

Potassium hydroxide

None of these

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

Helpful in estimation of its rank

Both A and B

TRUE ANSWER : ?
YOUR ANSWER : ?

Too much of excess air in combustion results in high

Fuel consumption for the same heat load

Percentage of oxygen in flue gases

Stack gas temperature

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Coking time in beehive coke oven is about

One week

12 hours

Two weeks

2-3 days

TRUE ANSWER : ?
YOUR ANSWER : ?

If oxygen content in the flue gas rises too high, fuel is being wasted by

Moisture loss

Dry gas/stack gas loss

Incomplete combustion

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following has the highest heat of combustion?

H₂

CO

CH₄

C₂H₆

TRUE ANSWER : ?
YOUR ANSWER : ?

Catalyst used in Fischer-Tropsch process is

Zinc oxide

Nickel

Thorium oxide

Alumina

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the maximum coal producing state in India?

Orissa

Assam

West Bengal

Jharkhand

TRUE ANSWER : ?
YOUR ANSWER : ?

↑