Fuels And Combustion MCQ Questions & Answers

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Each section contains 100 MCQs on Fuels and Combustion .

High ash containing coke

A) Produces more slag when used in the blast furnace B) Has poor strength and abrasion resistance C) Is desirable in producer gas manufacture D) None of these

Discuss

Answer & Solution

Answer: Option A

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

Presence of free moisture in coal during its high temperature carbonisation

A) Reduces the coking time B) Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls C) Increases the loss of fine coal dust from the ovens when charging D) None of these

Discuss

Answer & Solution

Answer: Option B

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

Which of the following gaseous fuels is likely to have the highest gross calorific value?

A) Sewage gas B) LPG C) Producer gas D) Natural gas

Discuss

Answer & Solution

Answer: Option B

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

Highly caking coals

A) Produce weak coke B) Produce strong coke C) May damage the coke oven walls during carbonisation D) Both B and C

Discuss

Answer & Solution

Answer: Option D

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

Flue gas obtained on complete combustion of pure acetylene (a hydrocarbon fuel) will contain

A) CO B) CO₂ C) H₂O D) Both B & C

Discuss

Answer & Solution

Answer: Option D

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

For the case of a fuel gas undergoing combustion with air, if the air/fuel ratio is increased, the adiabatic flame temperature will

A) Increase B) Decrease C) Increase or decrease depending on the fuel type D) Not change

Discuss

Answer & Solution

Answer: Option B

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

Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces

A) Higher amount of methane B) Lower amount of hydrogen C) Both A & B D) Higher amount of both methane and hydrogen

Discuss

Answer & Solution

Answer: Option C

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

Out of the following fuels, the difference between the net and gross calorific value is maximum in case of

A) Pitch B) Fuel oil C) Blast furnace gas D) Bituminous coal

Discuss

Answer & Solution

Answer: Option B

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

A good metallurgical coke should have very low

A) Sulphur & phosphorous content B) Porosity C) Fusion point of its ash D) Hardness & strength

Discuss

Answer & Solution

Answer: Option A

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

Which is the most matured coal?

A) Lignite B) Bituminous C) Semi-anthracite D) Anthracite

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