Define air mass. Why is it advisable to tilt a non-tracking solar system at an angle equal to the latitude angle?

What is a solar still? Explain its working with the help of a suitable diagram.

Explain solar photovoltaic system. Also, write the advantages and limitations of photovoltaic systems.

Explain the construction and working of a solar street lighting system with a neat sketch.

Draw a schematic diagram of a bio-gas plant and explain its working.

What is pyrolysis? Also, explain the types of pyrolysis.

Draw the block diagram of a solar drying system. Also, write the functions of each component.

Define and explain any two of the following with the help of an example:

Payback period

Capital recovery factor

Salvage fund factor

Fixed cost and Variable cost

Describe the importance of ventilation in heating and cooling of the buildings.

Explain Trombe wall with a neat sketch.

Explain the different features of three main types of buildings.

Describe the concentrating type of collector with its advantages and disadvantages.

Describe the solar pumping system with a neat sketch.

7. Write short notes on any two of the following;

Solar Heating Systems

Mix Mode Dryer

Solar Pond