Fuels And Combustion MCQ Questions & Answers

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Each section contains 100 MCQs on Fuels and Combustion .

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

A) Incomplete combustion B) Dry gas/stack gas loss C) Moisture loss D) None of these

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Coking time in beehive coke oven is about

A) 12 hours B) 2-3 days C) One week D) Two weeks

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Too much of excess air in combustion results in high

A) Fuel consumption for the same heat load B) Stack gas temperature C) Percentage of oxygen in flue gases D) All of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Catalyst used in Fischer-Tropsch process is

A) Nickel B) Zinc oxide C) Alumina D) Thorium oxide

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The cuprous chloride used in orsat apparatus can absorb

A) Only CO B) Both CO and CO₂ C) Both CO and O₂ D) All of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Pick out the wrong statement.

A) Cokes of high reactivity are obtained from weakly coking coals B) Cokes of high reactivity are obtained from strongly coking coals C) Reactivity of coke is inversely proportional to its absolute density D) Abrasion index of the coke is a measure of its hardness

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The pyragallol solution used in orsat apparatus can absorb

A) Only O₂ B) Both O₂ and CO₂ C) Both O₂ and CO D) All of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Use of preheated air for combustion of fuel in the furnace, increases the

A) Scale losses of the furnace stock B) Calorific value of the fuel C) Flame temperature D) None of these

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

C.V. (kcal/Nm³) of gaseous fuels __________ with increase in molecular weight.

A) Decreases B) Increases C) Remains constant D) May increase or decrease, depends on combustibles

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

'Wobbe index' is a characteristic of

A) Solid fuels B) Gaseous fuels C) Liquid fuels D) Fat coals

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

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Fuels And Combustion MCQ Questions & Answers | Chemical Engineering