Free NJATC Renewable Energy Training Questions and Answers

Question 1

Which of the following is a conversion from chemical energy to thermal energy?

Accepted Answer

All of the above.

Answer

All of the given options involve the process of burning a substance, which is a chemical reaction that releases energy in the form of heat. When coal is burned at a power plant, gasoline is burned in a car engine, or charcoal is burned in a barbeque pit, the chemical energy stored in these substances is converted into thermal energy, resulting in the production of heat. Therefore, all of the options mentioned involve the conversion of chemical energy to thermal energy.

Question 2

Which of the following is the best example of increasing an object's potential energy?

Accepted Answer

Stretching a rubber band.

Answer

Stretching a rubber band is the best example of increasing an object's potential energy because when a rubber band is stretched, work is done to store potential energy in the stretched rubber band. The potential energy is stored in the form of elastic potential energy, which is released when the rubber band is allowed to return to its original shape. This is a clear example of increasing an object's potential energy through the application of external force.

Question 3

A Solar cell is an electrical device that converts the energy of light directly into electricity by the

Accepted Answer

Photovoltaic effect

Answer

A solar cell is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect. This effect occurs when photons from sunlight hit the solar cell and transfer their energy to electrons in the semiconductor material of the cell. This causes the electrons to become energized and creates an electric current. The photovoltaic effect is the fundamental principle behind the operation of solar cells and allows them to generate electricity from sunlight.

Question 4

The main composition of biogas is

Accepted Answer

Methane

Answer

Biogas is primarily composed of methane, which is a flammable gas and the main component responsible for its energy content. Methane is produced through the anaerobic decomposition of organic matter, such as animal waste, sewage, or agricultural residues. Carbon dioxide is also present in biogas, along with small amounts of other gases like nitrogen and hydrogen. However, methane is the dominant component, making up a significant portion of the biogas composition.

Question 5

Which has a large amount of installed grid-interactive renewable power capacity in India?

Accepted Answer

Wind power

Answer

Wind power has a large amount of installed grid-interactive renewable power capacity in India. This is because India has favorable wind conditions in many regions, making it a suitable choice for harnessing renewable energy. Wind power projects have been implemented extensively across the country, leading to a significant installed capacity. Additionally, the Indian government has also provided incentives and policy support to promote wind power generation, further contributing to its large capacity.

NJATC - National Joint Apprenticeship and Training Committee Practice Test

NJATC - National Joint Apprenticeship and Training Committee Practice Test

Free NJATC Renewable Energy Training Questions and Answers