Fuels And Combustion MCQ Questions & Answers

1

Coke oven gas consists mainly of

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

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Answer & Solution

Answer: Option A

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2

Kopper-Totzek coal gasifier

A) Can give ammonia synthesis gas (H₂ + N₂) B) Is a moving bed reactor C) Cannot use coking coal D) Operate at very high pressure

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Answer & Solution

Answer: Option A

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3

(64-132) rank coal (ASTM) means a coal with 64%

A) Fixed carbon and having a heat value of 13, 200 BTU/1b B) Ash and a heating value of 13, 200 BTU/1b C) Fixed carbon and a heating value of 132 BTU/1b D) None of these

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Answer & Solution

Answer: Option A

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4

(64-132) rank coal (ASTM) means a coal with 64%

A) Fixed carbon and having a heating value around 13, 200 BTU/1b B) Ash and heating value around 13, 200 BTU/1b C) Fixed carbon and heating value around 132 BTU/1b D) None of these

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Answer & Solution

Answer: Option A

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5

Mineral matter content (M) and ash content (A) in coal are approximately related as

A) M = 1.1A B) M = A C) M = 1.5A D) M = 2A

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Answer & Solution

Answer: Option A

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6

Calorific value of furnace oil is about __________ kcal/kg.

A) 10000 B) 15000 C) 5000 D) 20000

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Answer & Solution

Answer: Option A

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7

With increase in C/H ratio of a fuel, the dew point of flue gases

A) Increases B) Decreases C) Remains same D) May increase or decrease ; depends on the type of fuel

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Answer & Solution

Answer: Option B

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8

Which of the following petrological constitutes is responsible for bright and lustrous black band of bituminous coal?

A) Vitrain B) Clarain C) Durain D) Fussain

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Answer & Solution

Answer: Option A

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9

Pensky-Marten apparatus is used for those oils, whose flash points are __________ °F.

A) <120 B) >120 C) <90 D) 90-110

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Answer & Solution

Answer: Option B

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10

Percentage of nitrogen in blast furnace gas may be around

A) 5 B) 25 C) 55 D) 80

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Answer & Solution

Answer: Option C

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Fuels And Combustion MCQ Questions & Answers | Chemical Engineering