Hydroelectric Energy (easy Questions)

2.

What is a main power of the plant of a hydroelectric energy?

Dams
Canals
Rivers
Lakes

Correct Answer

A. Dams

Explanation

Dams are the main power of a hydroelectric plant because they are used to store water in a reservoir. The water is then released from the dam, flowing through turbines which generate electricity. Dams provide a controlled and consistent supply of water, allowing for a reliable source of energy. Canals, rivers, and lakes are not the main power of a hydroelectric plant as they do not have the same ability to store and control water flow.

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3.

How does hydroelectric energy work?

It uses the power of the sun to turn work
The water heats up and it turns into water vapor to power
Water turns a piece similar to a propeller to power
Water freezes and then is thrown to power it

Correct Answer

A. Water turns a piece similar to a propeller to power

Explanation

Hydroelectric energy works by using the force of flowing water to turn a turbine, which is connected to a generator. The flowing water rotates the turbine blades, similar to a propeller, which then spins the generator to produce electricity. This process harnesses the kinetic energy of moving water to generate power.

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4.

Hydroelectric energy converts gravitational potential energy of water into

Kinetic energy
Power energy
Pressure energy
Velocity energy

Correct Answer

A. Kinetic energy

Explanation

Hydroelectric energy converts the gravitational potential energy of water into kinetic energy. As water flows down from a higher elevation to a lower elevation, it gains speed and kinetic energy. This kinetic energy is then harnessed by turbines, which convert it into mechanical energy, and ultimately into electrical energy. Therefore, the correct answer is kinetic energy.

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5.

The currently ranked one in hydroelectric energy producing worlwide.

China
United States
Europe
Philippines

Correct Answer

A. China

Explanation

China is the correct answer because it is currently the top-ranked country in hydroelectric energy production worldwide. China has a significant number of hydroelectric power plants and has made substantial investments in this renewable energy source. The country's large rivers and mountainous terrain provide ample opportunities for the development of hydroelectric projects, allowing China to generate a substantial amount of its electricity from hydropower. As a result, China has surpassed other countries, including the United States, Europe, and the Philippines, in hydroelectric energy production.

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2

6.

Which of the following is NOT AN ADVANTAGE hydroelectric power.

Its renewable
Low maintenance cost
Its costs very little to construct
Fuel is not burned

Correct Answer

A. Its costs very little to construct

Explanation

The correct answer is "its costs very little to construct." This statement suggests that the construction cost of hydroelectric power plants is low. However, this is not true as hydroelectric power plants require significant investment for construction, including the building of dams, installation of turbines, and transmission infrastructure. Therefore, this option is not an advantage of hydroelectric power.

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7.

What principle pulls water into the penstock?

Gravity
Force of the volume of water
Turbine
Pressure

Correct Answer

A. Gravity

Explanation

Gravity is the force that pulls objects towards each other. In the context of the question, gravity is responsible for pulling water into the penstock. As water is higher in elevation than the penstock, gravity causes it to flow downwards, creating a pressure difference that allows the water to enter the penstock. This gravitational force is essential for the functioning of hydroelectric power plants, as it enables the movement of water through the system, ultimately driving the turbines and generating electricity.

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8.

Componet of the plant that is powering and making the energy.

Penstock
Shafting
Turbines
Generator

Correct Answer

A. Turbines

Explanation

Turbines are the components of a plant that convert the kinetic energy of a moving fluid (such as water, steam, or gas) into mechanical energy. In the context of a power plant, turbines are used to generate electricity by rotating a generator. The rotating motion of the turbines is powered by the energy from the fluid, which is typically obtained from a water source or steam produced by burning fossil fuels. Therefore, turbines play a crucial role in powering and generating energy in a plant.

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9.

What is true for hydroelectric energy?

Can be used for a lifetime
It does not costs to build
Water everywhere, it can be used everywhere
It rains all the time

Correct Answer

A. Water everywhere, it can be used everywhere

Explanation

Hydroelectric energy is generated by harnessing the power of flowing or falling water. This form of renewable energy is not limited to specific geographical locations as water is available in abundance worldwide. Unlike other energy sources, hydroelectric power can be generated wherever there is a water source, such as rivers, dams, or oceans. This makes it a versatile and widely accessible form of energy. However, it is important to note that the construction of hydroelectric power plants does incur costs, and the availability of water is not constant everywhere, as it depends on factors like rainfall patterns and water sources.

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4

10.

In the Philippines, how much percent utilized from hydroelectric energy as to the total available energy production?

35
15
25
7

Correct Answer

A. 35

Explanation

Hydroelectric energy is a significant source of energy production in the Philippines, contributing 35% to the total available energy production. This indicates that a considerable portion of the country's energy needs are met through the utilization of hydroelectric power, which is generated by harnessing the energy from flowing or falling water. This high percentage suggests that the Philippines has invested in developing hydroelectric power plants and has recognized the importance of renewable energy sources in meeting its energy demands.

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Hydroelectric Energy (Easy Questions)

Hydroelectric energy is considered as nonrenewable resources?

Quiz Preview

What is a main power of the plant of a hydroelectric energy?

How does hydroelectric energy work?

Hydroelectric energy converts gravitational potential energy of water into

The currently ranked one in hydroelectric energy producing worlwide.

Which of the following is NOT AN ADVANTAGE hydroelectric power.

What principle pulls water into the penstock?

Componet of the plant that is powering and making the energy.

What is true for hydroelectric energy?

In the Philippines, how much percent utilized from hydroelectric energy as to the total available energy production?