Fuels And Combustion MCQ Questions & Answers

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Each section contains 100 MCQs on Fuels and Combustion .

Gross & net calorific value is the same for

A) Blast furnace gas B) Coke oven gas C) L.D. converter gas D) None of these

Discuss

Answer & Solution

Answer: Option C

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

Which of the following constituents of a fuel does not contribute to its calorific value on combustion?

A) Hydrogen B) Sulphur C) Carbon D) None of these

Discuss

Answer & Solution

Answer: Option D

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

Which of the following fuels has the highest calorific value per unit mass (kcal/kg)?

A) Coal B) Kerosene C) Natural gas D) Furnace oil

Discuss

Answer & Solution

Answer: Option D

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

Tar is a better fuel than furnace oil, because of its

A) Higher calorific value B) Lower sulphur content C) Higher emissivity (0.8 - 0.9) resulting in higher radiation heat transfer rate D) Both A & B

Discuss

Answer & Solution

Answer: Option D

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

When incomplete combustion loss is high, the flue gas analysis shows large amount of

A) CO₂ B) CO C) O₂ D) C

Discuss

Answer & Solution

Answer: Option B

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

High amount of sulphur and phosphorous in coke causes

A) Decrease in its calorific value B) Increase in its strength C) Brittleness of steel made by using it D) None of these

Discuss

Answer & Solution

Answer: Option C

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

Which of the following constituents of coal is the most important in the production of coke?

A) Moisture B) Ash C) Volatiles D) Carbon

Discuss

Answer & Solution

Answer: Option D

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

Benzol is used

A) As a motor fuel blend B) For producing benzene, tolune & xylene by its distillation C) Both A & B D) Neither A nor B

Discuss

Answer & Solution

Answer: Option C

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

Coking time in a commercial high temperature coal carbonisation plant is about __________ hours.

A) 6 B) 18 C) 28 D) 36

Discuss

Answer & Solution

Answer: Option B

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

Pick out the wrong statement.

A) Angle of repose of coal increases with its increasing size B) Specific gravity of coal increases with its increasing maturity C) Refractive index and reflectance of coal increases with the increasing rank of coal D) Specific heat of coal decreases with increases in the volatile matter and decrease in the C/H ratio of coal

Discuss

Answer & Solution

Answer: Option D

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

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Fuels And Combustion MCQ Questions & Answers | Chemical Engineering