Advantanges and Disadvantages of Hydroelectric Power Plant

Q.

Explain the working of a hydroelectric power plant with schematic diagram. [5 MARKS]

Q.

A cheap, conventional, commercial and inexhaustible source of energy is:

1. Hydropower

2. Solar energy

3. Wind energy

4. Thermal energy

Q. Which of the following method(s) of generating electricity is/are clean and ecofriendly?

1. Hydroelectric power plant
2. Thermal power plant
3. Wind mills
4. Natural gas power plant

Q.

Write three main disadvantages of the construction of the larger dam for generating hydroelectric power.

Q.

Which of these can be considered as disadvantage of hydropower generation?

1. Dams can be constructed only in limited areas.

2. Large areas of land get submerged within water when dams are erected.

3. All of these

4. Submerged vegetation rots under anaerobic conditions and produce methane, a green house gas.

Q. Which of the following is not among the advantages of hydropower generation?

1. It produces electricity with minimal pollution.
2. It does not reduce quality of water.
3. It causes rehabilitation of people.
4. It is renewable source of energy.

Q. Which of following sources does not cause pollution?

1. Coal
2. Uranium
3. Sun
4. Natural gas

Q. Which of these can be considered as disadvantages of hydropower generation?

1. Dams can be constructed only in limited areas.
2. Submerged vegetation rots under anaerobic conditions and produce methane, a green house gas.
3. It generates smoke.
4. Large areas of land get submerged within water when dams are erected.

Q.

Which of these are not the advantages of hydel power generation?

1. Clean electricity with minimal pollution

2. Comparatively less maintenance cost

3. Rehabitation of people

4. Renewable source of energy

Q.

Mention one advantage of setting up a mini or micro-hydroelectric power station.

Q. Today, which renewable energy source provides India with the most energy?

1. Wind
2. Hydropower
3. Solar
4. Geothermal

Q. Match the following characteristics of hydroelectric power plant corresponding to their causes.

1. No harmful gases
2. Generate electricity as per demand
3. Tourist attraction
4. Generate electricity for many years

Q. What are the drawbacks of hydroelectric power plant?

1. It takes a lot of time to build dams.
2. Villages and towns submerge due to backwater storage.
3. Shortage of water down the river.
4. Waste is difficult to dispose.

Q.

Give two advantages of a dam.