Petroleum Refinery Engineering

161. Percentage of straight run gasoline in a typical crude oil may be around

1. 6
2. 18
3. 38
4. 52

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162. Performance number of a liquid fuel is related to its

1. Wax content
2. Spontaneous ignition temperature
3. Knocking tendency
4. Sulphur content

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163. Petrolatum is

1. Same as petroleum ether
2. Petroleum coke
3. A mixture of microcrystalline wax in viscous hydrocarbon liquids
4. None of these

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164. Petroleum

1. Is optically active
2. Constitutes mainly of olefins
3. Does not contain asphalt
4. Does not contain aromatics

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165. Petroleum coke is used mainly in the

1. Discoloration of yellow glycerine
2. Sugar refining
3. Manufacture of carbon electrode
4. Blast furnace for reduction of iron ore

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166. Petroleum is believed to have originated from _________ sources.

1. Vegetable
2. Animal
3. Both (A) and (B)
4. Neither (A) nor (B)

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167. Petroleum liquid fuels having flash point greater than 66°C is considered as safe during storage and handling. Which of the following has flash point"66°C?

1. Naphtha
2. Petrol
3. Kerosene
4. Heavy fuel oil

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168. Phenols are added in gasoline to

1. Improve the octane number
2. Act as an antioxidant
3. Reduce its viscosity
4. Increase its pour point

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169. Pick out the additive property of lube oil out of following.

1. °API gravity
2. Specific gravity
3. Viscosity
4. Flashpoint

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170. Pick out the correct statement about catalytic polymerisation.

1. H₂SO₄ polymerisation process gives gasoline rich in unsaturates
2. In H₂SO₄ polymerisation, H3PO4 is always used with 2% steam to prevent meta & ortho H3PO4 formation, which are inactive
3. Both (A) and (B)
4. Neither (A) nor (B)

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