FUELS AND COMBUSTION QUIZ

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

Total carbon

Fixed carbon

Nitrogen

Hydrogen

TRUE ANSWER : ?
YOUR ANSWER : ?

Naphthalene is removed from coke oven gas by

None of these

Scrubbing with wash oil (a petroleum product)

Absorbing in vetro-coke solution

Adsorbing on bog iron bed

TRUE ANSWER : ?
YOUR ANSWER : ?

Gobar gas is produced by the __________ of 'gobar' (cow dung).

Hydrolysis

Oxidation

Fermentation

Dehydration

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Mixing with blast furnace gas

Coke oven battery heating

Steel ladle drying

Hot scarfing of steel slabs

TRUE ANSWER : ?
YOUR ANSWER : ?

Octane number of 2, 2, 4 - trimethyl pen-tane is

100

More than 100

In between 0 and 100

TRUE ANSWER : ?
YOUR ANSWER : ?

Bunsen burner is an example of a/an __________ burner.

Outside mixing/diffusion flame/nozzle mix type

Rotary cup

Inside mixing/premix type

Submerged combustion

TRUE ANSWER : ?
YOUR ANSWER : ?

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

500

1300

4500

9000

TRUE ANSWER : ?
YOUR ANSWER : ?

'Fat' coal means a coal having

Non smoking tendency

Low calorific value

Low ash content

High volatile matter

TRUE ANSWER : ?
YOUR ANSWER : ?

Calorific value of of blast furnace gas is around __________ KCal/Nm³.

1800

850

6500

4200

TRUE ANSWER : ?
YOUR ANSWER : ?

The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to

None of these

Minimise its corrosion

Make it look attractive

Avoid radiation heat loss

TRUE ANSWER : ?
YOUR ANSWER : ?

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