Petroleum Refinery Engineering MCQs

Question 1

The general formula of naphthenes is

Accepted Answer

Same as that for olefins i.e. C n H 2n

Answer

C n H 2n + 2

Answer

C n H 2n - 6 (where, n ≥ 6)

Answer

C n H n - 4

Question 2

Diesel used in naval applications has a minimum cetane number of

Accepted Answer

45

Answer

25

Answer

35

Answer

65

Question 3

Catalyst used in the catalytic polymerisation is

Accepted Answer

Phosphoric acid on kieselghur

Answer

Aluminium chloride

Answer

Nickel

Answer

Vanadium pentaoxide

Question 4

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

Accepted Answer

°API gravity

Answer

Specific gravity

Answer

Viscosity

Answer

Flashpoint

Question 5

In catalytic alkylation, higher iso-butane to olefin ratio gives

Accepted Answer

Low final boiling point product

Answer

Higher yield

Answer

Both A & B

Answer

Neither A nor B

Question 6

Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic

Accepted Answer

Reforming

Answer

Cracking

Answer

Polymerisation

Answer

Isomerisation

Question 7

Which of the following has the minimum °API gravity of all?

Accepted Answer

Furnace oil

Answer

Diesel

Answer

Kerosene

Answer

Petrol

Question 8

Solvent used in duo-sol extraction for lube oil upgradation is a mixture of

Accepted Answer

Propane & phenol-cresol mixture

Answer

Methyl ethyl ketone & glycol

Answer

Phenol & furfural

Answer

Propane & liquid sulphur dioxide

Question 9

Complete removal of __________ from gasoline is done by Unisol process using caustic soda and methyl alcohol.

Accepted Answer

Mercaptans

Answer

Waxes

Answer

Asphalt

Answer

Diolefins