Hydroelectric Power Plant

Q.

Name two sources of AC and DC.

Q.

In a hydroelectric power plant, the amount of electric power generated can be increased if water falls from a greater height as:

1. its temperature increases with height.

2. available potential energy increases with height.

3. the electricity content of water increases with height.

4. more water molecules dissociate into ions at greater height.

Q.

Why are dams constructed at greater heights?

Q.

If I build a turbine in a fast flowing stream of a river without building a dam.What kind of an energy conversion will happen for power generation?

1. potential energy to electrical energy

2. heat energy to electrical energy

3. wind energy to electrical energy

4. kinetic energy to electrical energy

Q.

If a turbine is build in a fast flowing stream of river without building dam, what energy conversion will happen for power generation?

1. heat energy to electrical energy

2. wind energy to electrical energy

3. kinetic energy to electrical energy

4. potential energy to electrical energy

Q. What are the main benefits in big projects like construction of dams?

1. Relocation of habitats
2. Generating Electricity
3. Small investments
4. Both A and B

Q.

In a hydel station, the motion produced in turbines is due to the

1. burning of coal

2. burning of diesel

3. flow of water

4. production of steam

Q.

If I build a turbine in a fast flowing stream of the river without building a dam. What energy conversion will happen for power generation?

1. heat energy to electrical energy

2. kinetic energy to electrical energy

3. potential energy to electrical energy

4. wind energy to electrical energy

Q. What energy conversion takes place in hydro power plants?

1. Kinetic energy $\to$ Potential energy $\to$ Electrical energy
2. Potential energy $\to$ Chemical energy $\to$ Electrical energy
3. Thermal energy$\to$ Kinetic energy $\to$ Electrical energy
4. Potential energy $\to$ Kinetic energy $\to$ Electrical energy

Q.

If a turbine is build in a fast flowing stream of river without building dam, what energy conversion will happen for power generation?

1. potential energy to electrical energy

2. heat energy to electrical energy

3. wind energy to electrical energy

4. kinetic energy to electrical energy

Q.

What is the significance of building a dam in hydro power plants?

1. Dams convert potential energy of water to kinetic energy.

2. Large amount of water stored in the dams have higher potential energy.

3. Dams are used to store drainage water.

4. Dams are used for rain water harvesting.

Q.

Which of the following statement is true regarding the hydropower plant?

1. The potential energy possessed by the stored water is converted into electricity.

2. Kinetic energy possessed by the stored water is converted into potential energy.

3. Electricity is extracted from the chemical energy possessed by water.

4. Water is converted into steam to produce electricity.