Fuels And Combustion MCQ Questions & Answers

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Each section contains 100 MCQs on Fuels and Combustion .

Ignition temperature of a fuel in air is __________ that in pure oxygen.

A) More than B) Less than C) Equal to D) Either more or less; depends on the type of fuel

Discuss

Answer & Solution

Answer: Option A

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

The average molecular weight of a flue gas having the composition by volume as CO₂ = 25%, O₂ = 25%, N₂ = 50% will be

A) 27.6 B) 23 C) 47.3 D) 42.9

Discuss

Answer & Solution

Answer: Option B

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

High sulphur (4-6%) coal in India are found in

A) Assam B) Andhra Pradesh C) Bengal D) Madhya Pradesh

Discuss

Answer & Solution

Answer: Option A

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

Which of the following is not used as a binder in coal briquetting?

A) Tar B) Molasses C) Pitch D) Line

Discuss

Answer & Solution

Answer: Option D

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

A coal with high ash content

A) Has higher calorific value B) Is harder and stronger C) Is not subjected to washing D) Has low quantity of mineral matter

Discuss

Answer & Solution

Answer: Option B

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

Artificial draught produced by a fan can be controlled by the

A) Speed of the fan B) Damper C) Variation in the pitch of the fan blades D) All of the above

Discuss

Answer & Solution

Answer: Option D

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

A good metallurgical coke

A) Should have high porosity B) Should be brittle C) Must contain moderate quantities of ash, moisture, sulphur and volatile matters D) Should have low fusion point of its ash

Discuss

Answer & Solution

Answer: Option A

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

Fuel for a nuclear reactor (thermal) is

A) Uranium B) Plutonium C) Radium D) None of these

Discuss

Answer & Solution

Answer: Option A

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

Pick out the wrong statement.

A) High concentration of oxygen in flue gas means high stack loss B) Gaseous fuels require the least % excess air for complete combustion C) The ratio of fixed carbon to volatile matter percentage in coal is called its 'fuel ratio' D) Calorific value of natural gas is more than that of LPG

Discuss

Answer & Solution

Answer: Option D

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

Very __________ coals are completely devoid of cokability i.e, it is non coking.

A) Young B) Mature 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

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Fuels And Combustion MCQ Questions & Answers | Chemical Engineering