Environmental Studies ยท Science General

Energy Resources and Storage

3,051 Questions

Energy Resources questions explore conventional and renewable energy sources, including wind, hydropower, and biomass technologies. These concepts are crucial for SSC, UPSC, and state competitive exams. Practice these questions to understand energy generation and storage technologies better.

Renewable energy sourcesWind turbine componentsHydropower plant basicsBiomass energy generationOcean wave technology

Energy Resources and Storage Questions

Multiple choice

Which component of a hydropower system generates electricity?

  1. Water Turbine

  2. Generator

  3. Transformer

  4. Power Lines
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Generators convert the mechanical energy from the water turbine into electrical energy.

Multiple choice

What is the term for the energy stored in a body of water due to its elevation?

  1. Potential Energy

  2. Kinetic Energy

  3. Electrical Energy

  4. Thermal Energy
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The potential energy of water is determined by its height and volume.

Multiple choice

Which type of hydropower system utilizes the natural flow of a river without the need for a dam?

  1. Run-of-the-River

  2. Pumped-Storage

  3. Tidal

  4. Micro-Hydro
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Run-of-the-river hydropower systems use the natural flow of a river without requiring a dam.

Multiple choice

Which type of hydropower system utilizes the energy of ocean tides?

  1. Run-of-the-River

  2. Pumped-Storage

  3. Tidal

  4. Micro-Hydro
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Tidal hydropower systems harness the energy of ocean tides.

Multiple choice

What is the term for a small-scale hydropower system that typically generates electricity for a single household or community?

  1. Run-of-the-River

  2. Pumped-Storage

  3. Tidal

  4. Micro-Hydro
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Micro-hydro systems are small-scale hydropower systems that generate electricity for local use.

Multiple choice

Which type of hydropower system involves pumping water uphill during times of low electricity demand and releasing it downhill through a turbine during times of high demand?

  1. Run-of-the-River

  2. Pumped-Storage

  3. Tidal

  4. Micro-Hydro
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Pumped-storage hydropower systems store energy by pumping water uphill and releasing it downhill when needed.

Multiple choice

What is the term for the maximum theoretical efficiency of a hydropower system?

  1. Carnot Efficiency

  2. Rankine Efficiency

  3. Brayton Efficiency

  4. Betz Limit
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Betz Limit represents the maximum theoretical efficiency of a wind turbine or a water turbine.

Multiple choice

Which type of hydropower system utilizes the energy of waves?

  1. Run-of-the-River

  2. Pumped-Storage

  3. Tidal

  4. Wave
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Wave hydropower systems harness the energy of ocean waves.

Multiple choice

What is the term for the energy stored in a body of water due to its motion?

  1. Potential Energy

  2. Kinetic Energy

  3. Electrical Energy

  4. Thermal Energy
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The kinetic energy of water is determined by its velocity and mass.

Multiple choice

Which type of hydropower system utilizes the energy of flowing water in small streams or rivers?

  1. Run-of-the-River

  2. Pumped-Storage

  3. Tidal

  4. Micro-Hydro
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Run-of-the-river hydropower systems use the natural flow of small streams or rivers without requiring a dam.

Multiple choice

Which country leads the world in installed solar photovoltaic (PV) capacity?

  1. China

  2. United States

  3. Germany

  4. India
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

China is the world leader in installed solar PV capacity, with over 300 gigawatts (GW) of installed capacity as of 2021.

Multiple choice

Which renewable energy source is the fastest-growing globally?

  1. Solar PV

  2. Wind energy

  3. Hydropower

  4. Geothermal energy
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Solar PV is the fastest-growing renewable energy source globally, with an annual growth rate of over 20% in recent years.

Multiple choice

Which renewable energy technology has the lowest cost per kilowatt-hour (kWh)?

  1. Solar PV

  2. Wind energy

  3. Hydropower

  4. Geothermal energy
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Solar PV has the lowest cost per kWh among renewable energy technologies, with costs falling rapidly in recent years.

Multiple choice

Which renewable energy project is the largest in the world?

  1. Three Gorges Dam (China)

  2. Itaipu Dam (Brazil/Paraguay)

  3. Longyangxia Dam (China)

  4. Hoover Dam (United States)
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

The Three Gorges Dam in China is the largest renewable energy project in the world, with a total installed capacity of 22,500 megawatts (MW).

Multiple choice

Which renewable energy technology is used to generate electricity from the movement of water?

  1. Solar PV

  2. Wind energy

  3. Hydropower

  4. Geothermal energy
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hydropower is a renewable energy technology that uses the movement of water to generate electricity.