Petroleum Refinery Engineering MCQs

Question 1

The average boiling point of aviation turbine fuel is closest to that of

Accepted Answer

Kerosene

Answer

Lubricating oils

Answer

LPG

Answer

Diesel

Question 2

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

Accepted Answer

52

Answer

6

Answer

18

Answer

38

Question 3

Presence of aromatics in

Accepted Answer

Petrol increases its octane number

Answer

Diesel increases its cetane number

Answer

Kerosene increases its smoke point

Answer

All of the above

Question 4

Pick out the wrong statement.

Accepted Answer

An oil having high susceptibility to change in viscosity with temperature changes, has a high viscosity index

Answer

Pensky-Marten apparatus is used for determining flash points above 50°C

Answer

Characterisation factor of paraffinic crude oil is more than 12

Answer

Abel apparatus is used for determining flash points below 50°C

Question 5

Smoke volatility index is equal to smoke point plus

Accepted Answer

0.42 × (% distilled at 204°C)

Answer

5 mm

Answer

0.84 × (% distilled at 204°C)

Answer

10 mm approximately

Question 6

Maximum use of petroleum coke is in

Accepted Answer

Carbon electrode manufacture

Answer

Adsorption refining operation

Answer

Fuel gas manufacture

Answer

Iron ore reduction

Question 7

The most widely used crude topping column in refineries is the __________ column.

Accepted Answer

Bubble-cap

Answer

Packed bed

Answer

Fluidised bed

Answer

Perforated plate

Question 8

Polymerisation

Accepted Answer

Causes olefins to combine with each other

Answer

Produces i-octane from cracked gases containing i-butane and butene

Answer

Causes aromatics to combine with each other

Answer

Is aimed at producing lubricating oil

Question 9

Which of the following is used as a catalyst in fluidised bed catalytic cracking?

Accepted Answer

All of the above

Answer

Silica-magnesia

Answer

Silica-alumina

Answer

Bentonite clays