Sources of Energy-Sample Papers

SOURCES OF ENERGY
TEST
Time: 1 hour Maximum Marks: 30
1.  What is the nuclear fission process?          [1]
2.  Name any two gases, which are major constituents of biogas.          [1]
3.  What is a solar cell panel?          [1]
4.  Give the names of any two devices that utilize solar energy.          [1]
5.  Outline the energy conversion that takes place in a hydro power plant.          [1]
6.  Why can CNG be considered as an environment friendly fuel?          [1]
7.  Define anaerobic degradation.          [1]
8.  What is the typical range of voltage and power of a solar cell, when exposed to the sun?          [1]
9.  What is the condition under which ocean thermal energy can be trapped and used?          [1]
10.  What is the cause of geothermal energy?          [1]
11.  Define bio�mass. Give two examples.          [2]
12.  What are the limitations of using wind energy?[2]
13.  Why is it difficult to use hydrogen as a source of energy?          [2]
14.  What is acid rain? What are its harmful effects?          [3]
15.  What characteristics should an ideal fuel possess?          [3]
16.  Give the advantages and disadvantages of solar cell panels.          [3]
17.  (i) What is the use of black painted surface in a solar cooker?          [5]
(ii) What is the unit in which nuclear energy is expressed? How is it related to joule?
(iii) Give the disadvantage of generating hydro�electricity.
OR
Discuss the working of a hydro power plant using a labeled diagram