Free Agricultural/Bioengineering Renewable Energy Questions and Answers

Question 1

Energy Resources are categorized into ____ based on usefulness.

Accepted Answer

primary, intermediate and secondary resources

Answer

Energy resources are commonly categorized based on their state of processing and origin. Primary resources are found directly in nature (e.g., crude oil, coal, solar radiation). Secondary resources are derived from primary resources through conversion processes (e.g., electricity, gasoline). The term 'intermediate resources' can refer to energy forms that have undergone some initial processing but are not yet final energy carriers, serving as inputs for further transformation within the energy supply chain.

Question 2

What category of resource is not one of the ones listed below?

Accepted Answer

Hydrogen Energy

Answer

Sunlight, coal, and crude oil are all classified as primary energy resources because they are found naturally in the environment and can be directly harvested or extracted. Hydrogen, however, is not a primary energy source; it does not occur freely in significant quantities on Earth. Instead, hydrogen must be produced from other compounds (like water or natural gas) using energy, making it an energy carrier or a secondary energy resource rather than a naturally occurring primary resource.

Question 3

The energy gained from a raw energy source divided by the energy required to access the source is known as the ____ ratio.

Accepted Answer

energy yield ratio

Answer

The energy yield ratio, also known as Energy Return On Energy Invested (EROEI), quantifies the amount of usable energy gained from a source relative to the energy expended to obtain it. A higher ratio indicates a more efficient and sustainable energy source. This metric is crucial for evaluating the net energy contribution and economic viability of different energy production methods.

Question 4

Energy Resources are those that have been in use for a long time.

Accepted Answer

conventional energy sources

Answer

Conventional energy sources are those that have been widely used for a long time and are well-established in global energy infrastructure. These typically include fossil fuels like coal, oil, and natural gas, as well as large-scale hydropower and nuclear energy. They are characterized by their historical prevalence and significant contribution to the world's energy supply.

Question 5

Which of the following claims about solar energy is true?

Accepted Answer

It is a renewable and non-conventional source of energy

Answer

Solar energy is classified as a renewable source because it harnesses energy from the sun, which is inexhaustible on a human timescale. It is also considered non-conventional because, despite its potential, it has not been a primary, widespread energy source for as long as fossil fuels and large-scale hydropower, and its widespread adoption is a more recent development. This distinguishes it from traditional, conventional sources.

Agricultural/Bioengineering Practice Test

Agricultural/Bioengineering Practice Test

Free Agricultural/Bioengineering Renewable Energy Questions and Answers