BSE 12 LESSON 10 Quiz on HVAC Systems

What should learners be able to describe regarding the function of fans and pumps in a BSE system by the end of the session?

• The electrical requirements for fans and pumps

• How fans and pumps function within a BSE system

• The manufacturing process of fans and pumps

• The installation process of fans and pumps in a building

What operational principles are learners expected to explain by the end of the session?

• The operational principles of solar panels

• The operational principles of gas and oil burners

• The operational principles of wind turbines

• The operational principles of water filtration systems

By the end of the session, learners should be able to describe how heat pumps extract heat from which sources?

• The sun and the ocean

• The ground and air

• The atmosphere and space

• Rivers and lakes

What aspect of domestic heating controls should learners understand by the end of the session?

• The cost-effectiveness of domestic heating controls

• The logic of domestic heating controls

• The color coding of domestic heating controls

• The brand variety of domestic heating controls

What are centrifugal fans used for?

• Cooling electronic components

• Movement of air through ducting

• Water circulation

• Generating electricity

Why are centrifugal fans considered to have high operational efficiency?

• Because they are inexpensive to purchase

• Because they use high energy

• Because they have low energy efficiency

• Because they have low energy efficiency and high operational efficiency

What happens when the fan impeller of a centrifugal fan is rotated?

• It creates high positive pressure in the chamber

• It stops the air movement

• It creates low negative pressure in the chamber

• It generates electrical energy

What is the result of the air being slightly compressed and forced through the outlet into the ductwork in a centrifugal fan?

• It decreases the air pressure

• It maintains the same air pressure

• It increases the air pressure due to centrifugal action

• It purifies the air

What must the pressure generated by a centrifugal fan be sufficient to overcome?

• The total electrical resistance

• The total frictional resistance of the ductwork

• The gravitational pull

• The air's humidity levels

What happens if the centrifugal fan fails?

• The system continues to work at a lower efficiency

• The system increases the air pressure

• The system stops working

• The system switches to an alternative power source