Fuels And Combustion MCQ Questions & Answers

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Each section contains 100 MCQs on Fuels and Combustion .

Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis.

A) 500 B) 750 C) 950 D) 1100

Discuss

Answer & Solution

Answer: Option B

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

During its calorific value determination by bomb calorimeter, coal is combusted by

A) Air B) Oxygen C) Oxygen enriched air D) None of these

Discuss

Answer & Solution

Answer: Option B

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

Orsat apparatus

A) Gives flue gas analysis on dry basis B) Determines N₂ in flue gas indirectly C) Can't determine CO in flue gas, if it is < 0.2% D) All of the above

Discuss

Answer & Solution

Answer: Option D

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

Orsat apparatus is meant for

A) Gravimetric analysis of flue gas B) Finding out combustion efficiency C) Direct determination of nitrogen in flue gas by absorbing it in ammoniacal cuprous chloride D) None of these

Discuss

Answer & Solution

Answer: Option D

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

'Fat coals' are those coals which have very high

A) Caking capacity B) Volatile matter content C) Fusion point of its ash D) Inherent moisture content

Discuss

Answer & Solution

Answer: Option A

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

__________ has the widest inflammability limit (explosion limit) of all the gases.

A) Hydrogen B) Carbon monoxide C) Acetylene D) Methane

Discuss

Answer & Solution

Answer: Option C

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

Presence of force moisture in coal is most disadvantageous during its

A) Transportation and handling B) Washing C) Pulverisation D) Storage

Discuss

Answer & Solution

Answer: Option C

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

Producer gas containing least amount of tar is produced by the

A) Partial combustion of coal B) Partial combustion of large size (< 50 mm) coke C) High pressure gasification of coal (e.g. in Lurgi gasifier) D) Atmospheric pressure gasification of coal (e.g., in Kopper-Totzek gasifier)

Discuss

Answer & Solution

Answer: Option B

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

Coke oven gas constitutes mainly of

A) H₂ & CO B) H₂ & CH₄ C) CH₄ & CO D) H₂ & CO₂

Discuss

Answer & Solution

Answer: Option B

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

100

Which of the following is a poisonous fuel gas?

A) Coke oven gas B) Blast furnace gas C) Natural gas D) None of these

Discuss

Answer & Solution

Answer: Option B

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

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Fuels And Combustion MCQ Questions & Answers | Chemical Engineering