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प्रश्न
What are the advantages of hydroelectric power generation ?
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उत्तर
- No fuel is burnt in hydroelectric plant so no air pollution.
- If the dam has enough water storage capacity, it is possible to generate electricity as needed.
- Hydroelectric power generation is environment friendly which do not lead to environmental problems.
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संबंधित प्रश्न
Write the energy conversion that takes place in a hydropower plant.
There are four fuels which all contain only carbon and hydrogen. The fuel having highest calorific value will be one which has:
(a) more of carbon but less of hydrogen
(b) less of carbon but more of hydrogen
(c) equal proportions of carbon and hydrogen
(d) less of carbon as well as less of hydrogen
State two disadvantages of producing hydroelectricity.
At a hydro power plant:
(a) kinetic energy possessed by stored water is converted into electrical energy
(b) electrical is extracted from water
(c) water is converted into steam to turn turbines and produce electricity.
(d) potential energy possessed by stored water is converted into electricity.
The harnessing of which of the following leads to the destruction of large eco-systems?
(a) thermal power
(b) tidal power
(c) hydro power
(d) geothermal power
The harnessing of which of the following leads to the destruction of large eco-systems?
(a) thermal power
(b) tidal power
(c) hydro power
(d) geothermal power
Describe the working of a hydrogen bomb.
What is common between the sun and a hydrogen bomb?
Which of the two is a cleaner fuel: hydrogen of CNG? Why?
Describe how hydro-energy can be converted into electrical energy.
Explain with a diagram of step-by-step energy conversion in a hydroelectric power plant.
Give scientific reasons:
It is possible to produce energy from mW to MW using solar photovoltaic cells.
Write whether true or false
Electrical energy can be generated.
Complete the following flow chart.
Explain the stages in electric generation from the given schematic diagram.
Hydropower plants are located in the ____________.
In a hydroelectric power plant more electrical power can be generated if water falls from a greater height because ______.
______ have long economic lives and low operating cost.
The Hydroelectric capacity of Koyna dam is ______.
