Fuels And Combustion MCQ Questions & Answers

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Each section contains 100 MCQs on Fuels and Combustion .

Percentage of hydrogen in coke oven gas may be around

A) 10 B) 25 C) 45 D) 60

Discuss

Answer & Solution

Answer: Option D

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

Percentage of methane in coke oven gas may be around

A) 5 B) 15 C) 25 D) 50

Discuss

Answer & Solution

Answer: Option C

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

In Lurgi coal gasifier,

A) Coking coals cannot be used B) Low carbon conversion efficiency is achieved C) Entrainment of solids is higher D) Larger quantity of coal can be processed

Discuss

Answer & Solution

Answer: Option D

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

During coal carbonisation process, the conversion of semi-coke to coke is accompanied by an increase in the __________ of the mass.

A) Density B) Porosity C) Electrical resistivity D) None of these

Discuss

Answer & Solution

Answer: Option A

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

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

A) Fixed carbon B) Total carbon C) Hydrogen D) Nitrogen

Discuss

Answer & Solution

Answer: Option A

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

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

A) To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls B) Because, it alone produces unreactive coke 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

Which of the following is not a by-product fuel?

A) Pitch B) Blast furnace gas C) Petrol D) Refinery gas

Discuss

Answer & Solution

Answer: Option C

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

Which of the following is the most reactive (as regards the formation of CO + H₂ from C + H₂O)?

A) Blast furnace coke B) Low temperature coke C) Anthracite coal D) Sub-bituminous coal

Discuss

Answer & Solution

Answer: Option B

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

The combustion reaction, C + O₂ = CO₂, is

A) Exothermic B) Endothermic C) Autocatalytic D) None of these

Discuss

Answer & Solution

Answer: Option A

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

For long flame and easy ignition, the coal used should have

A) High volatile matter B) Low ash C) High calorific value D) High ash

Discuss

Answer & Solution

Answer: Option A

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

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Fuels And Combustion MCQ Questions & Answers | Chemical Engineering