FUELS AND COMBUSTION QUIZ

The shift conversion reaction taking place during water gas manufacture is given by

C + 2H₂O ⟷ CO₂ + 2H₂

C + H₂O ⟷ CO + H₂

None of these

CO + H₂O ⟷ CO₂ + H₂

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the most poisonous gas?

L.D. converter gas

Coke oven gas

Blast furnace gas

Producer gas

TRUE ANSWER : ?
YOUR ANSWER : ?

A coal having higher volatile matter content, has lower

Chance of catching fire during storage in open space

Smoking tendency on burning

Ignition temperature

Coke oven gas yield on carbonisation

TRUE ANSWER : ?
YOUR ANSWER : ?

Laboratory gas is obtained by the cracking of

Diesel

Gasoline

Kerosene

Fuel oil

TRUE ANSWER : ?
YOUR ANSWER : ?

Rate of low temperature oxidation of coal due to bad storage conditions

Is accelerated by storage in large heaps with small surface to volume ratio

Is more for low volatile coal compared to high volatile coal

Does not vary with increase in surface area

Decreases with increase in surface area

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following has the highest gross calorific value?

Blast furnace gas

Oil refinery gas

Coke oven gas

Carburetted water gas

TRUE ANSWER : ?
YOUR ANSWER : ?

Coke oven gas after passing through return electrostatic tar precipitator (RETP) is used for the

Coke oven battery heating

Steel ladle drying

Hot scarfing of steel slabs

Mixing with blast furnace gas

TRUE ANSWER : ?
YOUR ANSWER : ?

Supply of excess air for complete combustion of fuel is necessitated to facilitate

None of these

Attainment of chemical equilibrium

Its thorough mixing with air

Attainment of high temperature

TRUE ANSWER : ?
YOUR ANSWER : ?

Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis.

1100

950

750

500

TRUE ANSWER : ?
YOUR ANSWER : ?

Prime coking coal is always blended with medium or non- coking coal before ear-bonisation

Neither A nor B

Because, it alone produces unreactive coke

To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls

Both A & B

TRUE ANSWER : ?
YOUR ANSWER : ?