11CH2 Fuel Fractions and Their Uses

Which fraction is used for industrial heating systems?

• LPG gases

• Petrol

• Fuel oil

• Naphtha

What is the carbon range for naphtha?

• 1-4

• 8-10

• 16-20

• 20-50

What does crude oil contain?

• Different metals

• Different hydrocarbons

• Different minerals

• Different gases

What is the primary purpose of the fractional distillation column?

• To mix different hydrocarbons

• To separate hydrocarbons based on boiling points

• To burn crude oil

• To freeze hydrocarbons

What is the state of hydrocarbons when they enter the column?

• Solid

• Liquid

• Gas

• Plasma

What is the temperature at the bottom of the fractional distillation column?

• 150°C

• 200°C

• 370°C

• 400°C

What is the main purpose of a furnace in the fractional distillation process?

• To cool the crude oil

• To heat the crude oil

• To separate the fractions

• To condense the hydrocarbons

Which fraction is collected at 300°C in the fractional distillation column?

• Gasoline

• Kerosene

• Diesel oil

• Fuel oil

Name the fraction with the largest molecules.

• A) Bitumen

• B) Gasoline

• C) Kerosene

• D) Diesel

Describe the relationship between size of molecules and boiling point.

• A) Larger molecules have lower boiling points.

• B) Smaller molecules have higher boiling points.

• C) Larger molecules have higher boiling points.

• D) Size of molecules does not affect boiling point.