solar energy utilization

Passive solar systems primarily rely on

• Mechanical devices

• Building design and natural processes

• Electrical pumps and fans

• Fuel-based heaters

Which building orientation is preferred in passive solar design (Northern Hemisphere)

• North-facing

• South-facing

• East-facing

• West-facing

Thermal mass in passive solar design is used to

• Reflect sunlight

• Store and release heat

• Reduce ventilation

• Block radiation

Solar PV panels work on which principle

An example of passive solar feature is

• Solar water heater

• Trombe wall

• Solar PV panel

• Solar pump

Passive systems are generally

• High cost and complex

• Dependent on pumps and blowers

• Low maintenance and cost-effective

• Suitable only for large industries

Active solar systems differ from passive systems because they

• Depend only on building design

• Use mechanical/electrical devices

• Do not store heat

• Require no investment

Which of the following is NOT a component of an active solar system

• Solar collector

• Heat exchanger

• Pump or fan

• Trombe wall

The main disadvantage of active solar systems is

• Low efficiency

• No control over heat

• High initial cost and maintenance

• Cannot be used in industries

A solar water heater primarily uses

• Solar collectors

• Photovoltaic effect

• Gas burners

• Reflectors only