Transportation Fuels from Biomass: Powering Vehicles with Biofuels

Question 1

What is a potential drawback of using biofuels in transportation?

Accepted Answer

Higher fuel prices

Answer

Lower greenhouse gas emissions

Answer

Enhanced air quality

Answer

Increased energy independence

Question 2

In the context of thermochemical conversion for transportation fuels, which of the following is an unsuitable feedstock material?

Accepted Answer

Fresh produce

Answer

Woody biomass

Answer

Agricultural residues

Answer

Municipal solid waste

Question 3

Which of the following substances is NOT a biomass feedstock used in the production of biofuels?

Accepted Answer

Coal

Answer

Algae

Answer

Corn

Answer

Waste vegetable oil

Question 4

What is the process by which ethanol is produced from biomass?

Accepted Answer

Fermentation

Answer

Combustion

Answer

Pyrolysis

Answer

Gasification

Question 5

Which type of biofuel is produced through a transesterification reaction?

Accepted Answer

Biodiesel

Answer

Butanol

Answer

Hydrogen

Answer

Ethanol

Question 6

What is a major environmental advantage of using biofuels over fossil fuels?

Accepted Answer

Reduced greenhouse gas emissions

Answer

Higher energy density

Answer

Improved engine performance

Answer

Lower cost

Question 7

What is the primary chemical component of biodiesel?

Accepted Answer

Fatty acid methyl esters

Answer

Hydrocarbons

Answer

Alcohols

Answer

Sugars

Question 8

Which of the following technologies is used to convert biomass into syngas?

Accepted Answer

Gasification

Answer

Fermentation

Answer

Pyrolysis

Answer

Hydrolysis

Question 9

Which of the following is NOT a primary feedstock for ethanol production?

Accepted Answer

Palm oil

Answer

Sugarcane

Answer

Corn

Answer

Wheat

Question 10

The primary method for biodiesel production is known as:

Accepted Answer

Transesterification

Answer

Fermentation

Answer

Gasification

Answer

Hydrolysis

Question 11

The primary environmental advantage of utilizing biofuels over fossil fuels is:

Accepted Answer

Reduced greenhouse gas emissions

Answer

Abundant availability of resources

Answer

Reduced cost per unit of energy

Answer

Enhanced energy efficiency

Question 12

A blend of biodiesel and petroleum diesel is generally referred to as:

Accepted Answer

BXX

Answer

EXX

Answer

GXX

Answer

FXX

Question 13

In gasoline blends, the most commonly utilized biofuel type is:

Accepted Answer

Ethanol

Answer

Biodiesel

Answer

Biojet fuel

Answer

Biogas

Question 14

The primary energy source for a biodiesel-powered vehicle is:

Accepted Answer

Chemical energy stored in vegetable oils or animal fats

Answer

Solar energy

Answer

Nuclear energy

Question 15

Which of the following factors does NOT affect the energy content of a biofuel?

Accepted Answer

The color of the feedstock material

Answer

The chemical composition of the final fuel

Answer

The type of feedstock material

Answer

The conversion process's efficiency

Question 16

The primary environmental advantage of using biofuels derived from agricultural waste is:

Accepted Answer

Reducing the need for land dedicated to fuel crops

Answer

Lowering biofuel production costs

Answer

Improving food crop availability

Answer

Eliminating greenhouse gas emissions

Question 17

In biofuel production, 'first-generation' refers to fuels made from:

Accepted Answer

Food crops

Answer

Algae

Answer

Synthetic processes

Answer

Waste materials

Question 18

What is a key advantage of using biodiesel as a transportation fuel compared to petroleum diesel?

Accepted Answer

Biodiesel produces significantly lower greenhouse gas emissions.

Answer

Biodiesel has a higher energy density than gasoline.

Answer

Biodiesel is readily available from unlimited feedstock sources.

Question 19

Which of the following is a primary source of biomass for ethanol production?

Accepted Answer

Corn and sugarcane

Answer

Algae

Answer

Animal fat

Answer

Wood chips

Question 20

A major challenge associated with widespread biofuel production is:

Accepted Answer

Competition with food crops for land and resources.

Answer

Significantly higher greenhouse gas emissions compared to fossil fuels.

Answer

Incompatibility with existing gasoline and diesel fuels.

Answer

Much lower energy density than fossil fuels.

Question 21

The process of converting vegetable oils or animal fats into biodiesel is called:

Accepted Answer

Transesterification

Answer

Gasification

Answer

Pyrolysis

Answer

Fermentation

Question 22

Compared to corn-based ethanol, cellulosic ethanol offers the potential advantage of:

Accepted Answer

Reduced reliance on food crops for feedstock.

Answer

Higher greenhouse gas emissions.

Answer

Lower energy yield per unit of feedstock.

Answer

Greater compatibility with existing vehicle engines.

Question 23

Which of the following ethanol-gasoline blends is NOT commonly used in the United States?

Accepted Answer

E50

Answer

E15

Answer

E10

Answer

E85

Question 24

What is the primary environmental benefit of using biodiesel compared to petroleum diesel?

Accepted Answer

Biodiesel is considered carbon-neutral, while petroleum diesel is a fossil fuel.

Answer

Biodiesel production requires less water than petroleum diesel refining.

Answer

Biodiesel has a higher energy density than petroleum diesel.

Question 25

Using high concentrations of ethanol in gasoline engines not designed for it can lead to:

Accepted Answer

Corrosion of engine components.

Answer

Increased fuel efficiency.

Answer

Reduced engine power.

Question 26

Which of the following government policies encourages the use of biofuels in the United States?

Accepted Answer

Renewable Fuel Standard (RFS)

Answer

Clean Air Act

Answer

Safe Drinking Water Act

Answer

Endangered Species Act

Question 27

A significant advantage of using algae as a feedstock for biofuel production is its:

Accepted Answer

High growth rate and oil yield per acre.

Answer

Low water requirements for cultivation.

Answer

Easy integration into existing agricultural systems.

Answer

No competition with food crops for land use.