Renewable Energy Mock Test 4

10%

Question 1 of 10

1. Why is a transparent cover used in a flat plate collector?

To maximize transmission of the incident sunlight into the box

To minimize transmission of the incident sunlight into the box

To entirely reflect the incident sunlight back

To ensure partial transmission of the incident sunlight into the box

Question 1 of 10

Question 2 of 10

2. Why does flat plate collector perceived to have higher efficiency than evacuated tube solar collector in terms of area?

Because evacuated tube collector is compact

Because of the vacuum gap in flat plate collectors

Because flat plate collector has a large installation area

Because of the vacuum gap in evacuated tube collectors

Question 2 of 10

Question 3 of 10

3. Which of the following are used as absorbers in evacuated-tube solar collectors?

Carbon tubes

Plastic or glass tubes

Metallic or glass tubes

Wooden or metallic tubes

Question 3 of 10

Question 4 of 10

4. Which of the following is required as a parameter in a parametric model?

Solar insolation constant

Type of measuring instrument

Cloud cover

Material of measuring instrument

Question 4 of 10

Question 5 of 10

5. How does a photovoltaic refrigeration system work?

By converting sun’s thermal energy into electricity which is used to drive a motor coupled to a compressor

By converting sunlight into DC current to drive a DC motor which is coupled to a compressor of a vapour compression system

By converting sun’s thermal energy into electricity which is used to drive an AC motor coupled to a compressor of a vapour compression system

By converting sunlight into DC current which is used to drive an AC motor coupled to a compressor of a vapour compression system

Question 5 of 10

Question 6 of 10

6. Which of the following is used to regulate temperature in solar heating and cooling system?

Specific building systems

Room heaters

Water heaters

Air conditioners

Question 6 of 10

Question 7 of 10

7. What is aperture area in a solar collector?

Area in the receiver that receives the solar radiation

Area occupied by the system after installation

Cross-sectional area of the receiver

Area of the system

Question 7 of 10

Question 8 of 10

8. What is a heat pipe?

A pipe made of heat

A pipe that consists of heat

A heat-transfer device

A heat pumping device

Question 8 of 10

Question 9 of 10

9. What is a solar cooling technology?

Sun’s thermal energy is transferred to a heat transfer fluid which passes through a cold exchanger

Sun’s nuclear energy is transferred to a heat transfer fluid which passes through a cold exchanger

Sun’s thermal energy is transferred to a heat transfer solid which passes through a heat exchanger

Sun’s thermal energy is transferred to a heat transfer fluid which passes through a heat exchanger

Question 9 of 10

Question 10 of 10

10. Which of the following is extremely important with respect to a passive solar heating and cooling system?

Mechanical systems used to perform heating/cooling operation

Electrical systems used to perform heating/cooling operation

Materials used to construct the building

Material used to build heating/cooling systems

Question 10 of 10