BSE UNIT 12 LESSON 8 Refrigeration Systems Quiz

What should learners be able to describe by the end of the session?

• The principle of the heat pump cycle

• The principle of the vapour compression cycle

• The components of a heating system

• The layout of a heating plant

Which of the following is one of the session objectives for learners?

• Sketch the layout of a heating system plant

• List the main components in a vapour compression system

• Discuss the principles of solar panel installation

• Explain the workings of a geothermal heating system

What principle related to air systems using refrigeration should learners be able to explain?

• The principle of humidity control

• The principle of heat recovery

• The principle of air purification

• The principle of air circulation

What are learners expected to sketch by the end of the session?

• The layout of a solar power system plant

• The layout of a chilled water system plant

• The layout of a wind energy system plant

• The layout of a hydroelectric power system plant

What topic regarding refrigeration systems should learners be able to discuss?

• The environmental impact

• The cost-effectiveness

• The advantages and disadvantages

• The energy efficiency standards

Why are natural refrigerants like hydrocarbons considered highly reliable for refrigeration systems?

• They are less expensive than synthetic refrigerants.

• They have lower running costs for refrigeration units.

• They don't deplete the ozone layer.

• They reduce the risk of fire from leakages.

What is one of the environmental downsides of refrigeration units that are not economically repairable?

• They increase the risk of fire hazards.

• They contribute to ozone layer depletion.

• They lead to an increased amount of waste due to replacement.

• They are more expensive to operate than new units.

What is a disadvantage of using air as a refrigerant in terms of operational costs?

• It has a high fire risk.

• It is not readily available.

• It has high running costs.

• It contributes to pollutant contamination.

What is a characteristic of a chemical that qualifies it as a refrigerant according to the text?

• It has unfavourable thermodynamic properties.

• It is corrosive to mechanical components.

• It contributes to climate change.

• It has favourable thermodynamic properties.

Which of the following is NOT a requirement for refrigerants as mentioned in the text?

• Non-corrosive to mechanical components

• Safe and non-toxic

• High flammability

• Does not contribute to ozone depletion