CHEMENG - SW4 - Fuels

Nuclear Fuel

Which of the following is NOT included in the definition of fuel?

a. Wood

b. Diesel

c. Nuclear Fuel

d. Coal

Wood

The first known fuel used by Homo erectus nearly two million years ago was:

a. Coal

b. Wood

c. Petroleum

d. Kerosene

Wood

Which of the following is a primary or natural fuel?

a. Petrol

b. Kerosene

c. Wood

d. Diesel

Charcoal

Which fuel was commonly used in Europe before the 18th century but later replaced due to deforestation?

a. Coke

b. Charcoal

c. Peat

d. Tar

Slow Pyrolysis

Charcoal is primarily produced by which process?

a. Fermentation

b. Fractional distillation

c. Slow pyrolysis

d. Destructive hydrogenation

Burns at Higher Temperatures with Less Smoke

Which of the following is an advantage of charcoal over wood as a fuel?

a. Produces more smoke

b. Contains more water

c. Burns at higher temperatures with less smoke

d. Releases more unburnt carbon

Coal Through Destructive Distillation

Coke is obtained mainly from:

a. Petroleum refining

b. Coal through destructive distillation

c. Biomass fermentation

d. Fractional distillation of natural gas

Abraham Gesner

Petroleum was first distilled into kerosene by:

a. Marco Polo

b. Muhammad ibn Zakariya Rāzi

c. Abraham Gesner

d. Al-Mas'üdi

Abraham Gesner

The term "kerosene" was registered as a trademark by:

a. Abraham Gesner

b. Ibn Razi

c. Thomas Edison

d. James Watt

Coal Gas

In the 19th century, which fuel was widely used for street lighting in London?

a. Petroleum

b. Natural Gas

c. Coal Gas

d. Diesel

Petrol

Which of the following is a secondary or derived fuel?

a. Coal

b. Petrol

c. Wood

d. Peat

Gaseous Fuel

Producer gas belongs to which category of fuel?

a. Solid fuel

b. Liquid fuel

c. Gaseous fuel

d. Primary fuel

Natural Gas

Which of the following is a gaseous primary fuel?

a. Producer Gas

b. Coke Oven Gas

c. Natural Gas

d. Water Gas

Kerosene

Which of the following is a liquid secondary fuel?

a. Crude Oil

b. Coal Tar

c. Kerosene

d. Vegetable Oil

Coke Production from Coal

Tar is commonly obtained as a by-product of:

a. Petroleum refining

b. Coke production from coal

c. Pyrolysis of wood only

d. Combustion of peat

Coal

Which fossil fuel became prominent during the Industrial Revolution due to being more concentrated than water power?

a. Peat

b. Coal

c. Kerosene

d. Tar

Iron Ore Smelting

Which of the following was a major industrial use of coke?

a. Aviation fuel

b. Street lighting

c. Iron ore smelting

d. Cooking

Fractional Distillation

Petroleum is separated into different components using:

a. Pyrolysis

b. Fractional distillation

c. Gasification

d. Catalytic cracking

Generating Electricity

By the 20th century, the primary use of coal shifted towards:

a. Heating homes

b. Generating electricity

c. Smelting iron ore

d. Fuel for locomotives

Renewable Fuels like Biofuels

The modern trend in fuels emphasizes:

a. Increased coal use

b. Nuclear fuels only

c. Renewable fuels like biofuels

d. More wood burning

Kerosene

Which of the following is NOT an example of a solid fuel?

a. Coal

b. Charcoal

c. Kerosene

d. Wood

Rocket Propellants

Solid fuels are extensively used in which special application?

a. Street lighting

b. Rocket propellants

c. Lubricants

d. Automobile engines

The Fumes or Vapors

The flammable part of a liquid fuel is:

a. The liquid itself

b. The fumes or vapors

c. The container

d. The impurities in it

Biodiesel

Which of the following is a liquid biofuel?

a. Natural Gas

b. Biodiesel

c. Coke

d. Producer Gas

Natural Gas

Which gaseous fuel is supplied directly from nature?

a. Producer gas

b. Water gas

c. Coal gas

d. Natural gas

Water Gas

Which gaseous fuel is a mixture of carbon monoxide and hydrogen?

a. Water gas

b. Natural gas

c. Coal gas

d. Producer gas

Calorific Value

The amount of heat produced by complete combustion of 1 kg of fuel is called:

a. Flame temperature

b. Calorific value

c. Ignition temperature

d. Flash point

Ignition Temperature

The lowest temperature at which a fuel begins to burn is its:

a. Flash point

b. Fire point

c. Ignition temperature

d. Aniline point

Flame Temperature

The temperature of the flame produced when a fuel burns completely is called:

a. Flash point

b. Cloud point

c. Flame temperature

d. Pour point

Lowest Temperature at which Vapors form an Ignitable Mixture

The flash point of a fuel is defined as:

a. Lowest temperature at which vapors form an ignitable mixture

b. Temperature at which fuel ignites without flame

c. Maximum burning temperature of fuel

d. Temperature at which liquid fuel solidifies

Octane Rating

Which property of liquid fuels indicates their tendency to form engine knocking?

a. Aniline point

b. Octane rating

c. Calorific value

d. Viscosity

Viscosity

Which property of a fuel refers to the ease of flow of liquid?

a. Specific gravity

b. Viscosity

c. Pour point

d. Coke number

The Temperature at which Wax Crystals First Appear

The cloud point of a fuel refers to:

a. The temperature at which fuel begins to vaporize

b. The temperature at which wax crystals first appear

c. The maximum burning temperature

d. The temperature of flame

Oxygen reacts with Elements or Compounds to release Heat

Combustion is a chemical process in which:

a. Carbon dioxide reacts with water

b. Oxygen reacts with elements or compounds to release heat

c. Fuel decomposes without oxygen

d. Heat is absorbed to form new compounds

Sulfur

Which of the following is an example of an element that reacts in combustion

a. Oxygen

b. Nitrogen

c. Sulfur

d. Helium