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Petroleum Refinery Engineering

Petroleum Refinery Engineering
Which of the following is an additive used for improving the cetane number of diesel?

Ethyl nitrate or acetone
Tetraethyl lead
Tetramethyllead
None of these

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Petroleum Refinery Engineering
95% (by volume) of LPG at 760 mm Hg pressure will evaporate at __________ °C.

2
30
-40
55

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Petroleum Refinery Engineering
__________ treatment is done for appreciable improvement in viscosity index of lubricating oil.

Acid
Solvent extraction
Alkali
Clay

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Petroleum Refinery Engineering
Performance number of a liquid fuel is related to its

Wax content
Sulphur content
Knocking tendency
Spontaneous ignition temperature

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Petroleum Refinery Engineering
Boiling range of motor gasoline is an indication of the

All of these
Rate of acceleration
Case of starting
Vapour locking tendency

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Petroleum Refinery Engineering
Glycol added to petrol acts as a/an __________ agent.

Anti-gum forming
Dewaxing
Anti-icing
Anti-knocking

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