Energy is a basic need in the present scenario.Water is the primary source used for generating the electricity. But now a day some non conventional energy resources are required. In this post I am presenting some objective questions from NCER Subject

1. Which of the following system is an application of solar thermal energy?

 (a) Internal combustion engine (b) Biogas generation (c) Solar water heating (d) Solar lighting

2. Which of the following appliances use solar photovoltaic technology?

 (a) Solar lantern (b) Biogas plant (c) Solar water heater (d) Solar air heater

3. The value of solar constant is approximately

 (a) 6.5 kW/m2 (b) 1.36 kW/m2 (c) 3.64 kW/m2 (d) 10 kW/m2

4. A typical insulation material used in a solar collector is

(a) Fibre glass (b) Cotton (c) Glass wool (d) None of the above

5. In a box type solar cooker, the solar radiations that enter and leave the box are of

(a) Short & long wavelength respectively (b) Long & short wavelength respectively (c) Similar wavelengths (d) None of the above

6. Pyranometer is an instrument used for measuring the

(a) Temperature of solar photovoltaic cell (b) Solar irradiance of a solar photovoltaic cell (c) Wind speed of a solar photovoltaic cell (d) Efficiency of a solar photovoltaic cell

7. A solar still is device used for

 (a) Heating water (b) Cooling water (c) Distilling water (d) Production of electricity

8. Which of the following solar energy devices is designed to reflect & concentrate energy from sunlight?

(a) Solar cooker (b) Solar cell (c) Solar water heater (d) Solar concentrator

 9. A pyrheliometer is an instrument used to measure the

(a) Temperature of solar photovoltaic cell (b) Intensity of direct solar radiation at normal incidence (c) Intensity of indirect solar radiation (d) Efficiency of a solar photovoltaic cell

10. The term beam solar radiation is related to

(a) Small hydropower (b) Flat plate solar collector (c) Turbine (d) Coal extraction mechanism 21. Which of the following.

Answer - 1 C   2 A  3B  4C  5 A  6 B   7 C  8 D 9 B  10 B