SOLAR TECHNICIAN

Direct Solar energy is used for

• Water heating

• Distillation

• Drying

• All of above

The following is indirect method of solar energy utilization.

• Wind energy

• Biomass energy

• Wave energy

• All of the above

A liquid flat plate collector is usually held tilted in a position, facing ........................... if located in the northern hemisphere.

• North

• South

• East

• West

The collection efficiency of flat plate collector can be improve by.

• Putting a selective on the plate

• Evacuating the space above the absorber plate

• Both (a) and (b)

• None of the above

The efficiency of various type of collectors....................... with ..................... temperature.

• Increase, decreasing`

• decreases, increasing

• remains same, increasing

• depends upon type of collector

Maximum efficiency is obtained

• Flat plate collector

• Evacuated tube collector

• Line focussing collector

• Paraboloid dish collector

The following type of energy is stored as latent heat

• Thermal energy

• Chemical energy

• Electrical energy

• Mechanical energy

Which of the following type of collector is used for low temperature system?

• Flat plate collector

• Line focussing parabolic collector

• Paraboloid dish collector

• All of the above

The sun subtends an angle of .......................... minutes at the earth"s surface.

• 22

• 32

• 42

• 52

The value of solar Constant is

• 1347 W/m2

• 1357 W/m2

• 1367 W/m2

• 1377 W/m2