5.1 3d part

Choose the incorrect option

• volatile matters are those components of fuel which are readily burnt in the presence of oxygen. This is usually a mixture of aromatic hydrocarbons, Short and Long-Chain hydrocarbons, and Sulfur.

• volatile matters are those components of fuel which are readily burnt in the presence of carbon monoxide. This is usually a mixture of aromatic hydrocarbons, short and long-chain hydrocarbons, and sulfur.

• volatile matters are those components of fuel which are readily burnt in the presence of oxygen. This is usually a mixture of aromatic benzenes, short and long-chain hydrocarbons, and sulfur.

• volatile matters are those components of fuel which are readily burnt in the presence of oxygen. This is usually a mixture of aromatic hydrocarbons, only long-chain hydrocarbons, and sulfur.

• volatile matters are those components of fuel which are readily burnt in the presence of oxygen. This is usually a mixture of aromatic hydrocarbons, short and long-chain hydrocarbons, and magnesium.

What is aromatic hydrocarbons?

• containing one or more six- carbon rings characteristic of the benzene series

• containing no six-carbon rings characteristic of the benzene series

• numerous organic compounds, such as benzene, methane

• chemical compounds in which the carbon atoms are linked in open chains

• all above

To which types classified the fuel based on physical state?

• solid fuel

• liquid fuel

• gaseous fuel

• all above

• none above

As what energy is usually wasted?

• sound, gravitational

• electrical, kinetic

• electrical, sound

• heat, sound

What is non renewable energy resources?

• the artificially occurring resources

• the naturally occurring resource that cannot be replaced and will end one day

• the naturally occurring resource that cannot be replaced and will not end one day

• resources made by modification in natural resource artificially in a lab

• the artificially and naturally occurring energy resources

Which coal has 2...10% of trapped water?

• anthracite

• bituminous

• lignite

• peat

• sub-bituminous

Choose the disadvantage of solid fuels

• their ash content is high

• their cost of production is high

• they are hard to transport

• they are unconvenient to store

• their cost of handling is low

How much % weight of ash content in lignite?

• 10-20%

• 45-85%

• 85-98%

• 10-50%

• 30-60%

Choose the non-renewable energy source

• fossil fuel

• solar energy

• biomass

• wind energy

• geothermal energy

How is heat primarily transferred through the collision of particles in a material?

• conduction

• convection

• radiation

• compression

• expansion