Petroleum Refinery Engineering MCQs

Question 1

Molecular weight of petrol may be about

Accepted Answer

100-130

Answer

40-60

Answer

250-300

Answer

350-400

Question 2

Good quality kerosene should have

Accepted Answer

High smoke point

Answer

Low smoke point

Answer

High aromatics content

Answer

Low paraffins content

Question 3

Mercaptans is represented as (where R and R' are alkyl groups)

Accepted Answer

R-S-H

Answer

R-COOH

Answer

R-S-R

Answer

R-S-R'

Question 4

Hydrogen content in petroleum products varies from 12 to 15% (by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of __________ kcal/kg.

Accepted Answer

600-750

Answer

250-350

Answer

1000-1500

Answer

2000-2500

Question 5

Catalyst used in the catalytic cracking is

Accepted Answer

Silica-alumina

Answer

Silica gel

Answer

Vanadium pentoxide

Answer

Nickel

Question 6

Viscosity index of a lubricating oil

Accepted Answer

Is the measure of variation of viscosity with temperature

Answer

Is the measure of its flash point

Answer

Should be low

Answer

None of these

Question 7

Petroleum deposits are detected by the.

Accepted Answer

All of the above

Answer

Oil seepage at the surface of the earth

Answer

Measuremet of density, elasticity and magnetic & electric properties of the rock in the crust of the earth

Answer

Age & nature of rocks inside the crust of the earth

Question 8

Cetane number of high speed diesel must be?

Accepted Answer

45

Answer

30

Answer

75

Answer

95

Question 9

Preheating temperature of medium viscosity furnace oil for better atomisation through burner is about __________ °C.

Accepted Answer

90

Answer

50

Answer

70

Answer

140