Fuels And Combustion MCQ Questions & Answers

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Each section contains 100 MCQs on Fuels and Combustion .

In flue gas analysis by Orsat's apparatus, carbon dioxide is absorbed by

A) Potassium hydroxide B) Dilute potassium carbonate C) Cuporus chloride D) Alkaline pyragllol solution

Discuss

Answer & Solution

Answer: Option A

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

For maximum discharge through a chimney, its height should be

A) 200 meters B) Infinitely long C) More than 105.7 metres D) Equal to the height of the hot gas column producing draught

Discuss

Answer & Solution

Answer: Option D

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

Fuel consumption in coke making can be reduced by

A) Preheating, blending and de-ashing the coal B) Stamped charging of coal C) Dry quenching of coke D) All of the above

Discuss

Answer & Solution

Answer: Option D

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

Blast furnace gas compared to coke oven gas has

A) Lower ignition temperature B) Narrower limit of inflammability C) Higher calorific value D) Lower theoretical flame temperature

Discuss

Answer & Solution

Answer: Option D

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

Combustion of pulverised coal as compared to that of lump coal

A) Develops a non-luminous flame B) Develops a low temperature flame C) Can be done with less excess air D) Provides a lower rate of heat release

Discuss

Answer & Solution

Answer: Option C

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

Mott and Wheeler test is conducted on coke to find its

A) Reactivity with O₂ B) Abradability C) Phosphorus content D) Volatile matter content

Discuss

Answer & Solution

Answer: Option A

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

Main constituent of natural gas is

A) CH₄ (upto 90%) B) C₂H₆ C) C₃H₈ D) H₂

Discuss

Answer & Solution

Answer: Option A

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

Method of maintaining fires in furnace during standby periods without undue consumption of fuel is called

A) Back draughting B) Banking C) Under pressurising D) None of these

Discuss

Answer & Solution

Answer: Option B

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

Increase in ash content of blast furnace coke

A) Reduces its consumption in the furnace B) Increases its consumption in the furnace C) Does not affect its consumption in the furnace D) Decreases its hardness and abrasion resistance

Discuss

Answer & Solution

Answer: Option B

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

Pick out the wrong statement.

A) Main constituents of LPG are propane and butane B) C.V. of natural gas is about 10000 kcal/Nm³ C) C.V. of LPG is about 26000 kcal/Nm³ (11500 kcal/kg) D) LPG is lighter than air

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