Fuels and Combustion

231.KOH solution used in Orsat apparatus absorbs

1. CO₂
2. SO₂
3. Both (A) & (B)
4. Neither (A) nor (B)

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232.Kopper-Totzek coal gasifier

1. Can give ammonia synthesis gas (H₂ + N₂)
2. Is a moving bed reactor
3. Cannot use coking coal
4. Operate at very high pressure

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233.Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an _________ bed gasifier.

1. Entrained
2. Moving
3. Fixed
4. Fluidised

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234.L.D. converter gas (produced in steel plant) comprises mainly of

1. CO (upto 65%) & CO₂
2. CO₂ & H₂
3. CO & O₂
4. CO₂ & O₂

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235.Laboratory gas is obtained by the cracking of

1. Gasoline
2. Diesel
3. Fuel oil
4. Kerosene

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236.Largest constituent of blast furnace gas is

1. N₂
2. CO
3. CO₂
4. H₂

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237.Largest constituent of coke oven gas is

1. N₂
2. H₂
3. CH₄
4. CO₂

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238.Light oil whose major component is Benzol, is obtained by the distillation of crude tar in the temperature range of _________ °C.

1. 80-170
2. 200-300
3. 250-270
4. 280-300

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239.Lignite is

1. A high rank coal
2. A coking coal
3. Can be used for gasification and steam generation
4. A black banded coal which burns with a non-smoky yellowish flame

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240.Low temperature carbonisation of coal produces

1. Metallurgical coke
2. Soft coke
3. Very low calorific value coke oven gas
4. No by-products

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