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Petroleum Refinery Engineering

Petroleum Refinery Engineering
Reid vapour pressure of gasoline is the measure of its

Cloud point
Vapour locking tendency
Carbon residue
Pour point

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Petroleum Refinery Engineering
Though increased pressure has a retarding effect on cracking reaction, yet in actual process, a positive pressure of 10-15 kgf/cm² is maintained during cracking mainly to

Increase the yield of light distillates
Suppress coke formation
Enhance the octane number of gasoline
Reduce gum content in gasoline

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Petroleum Refinery Engineering
Higher viscosity of lubricating oil usually signifies

Higher flash point and fire point
Lower Reid vapour pressure
Lower flash point and fire point
Higher acid number

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Petroleum Refinery Engineering
Which is an anticing compound?

Mercaptans
Amyl nitrate
Pyridine
Alcohals

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Petroleum Refinery Engineering
Crude oils containing more than __________ kg of total salts (expressed in terms of NaCl) per thousand barrel is called a 'salty crude'.

5
15
1
25

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Petroleum Refinery Engineering
Aniline point is the

Characteristic property of diesel & lubricating oils
Neither A nor B
Both A & B
Measure of aromatic content of oil

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