WorksheetsRefrigeration and Air Conditioning Quiz
Total questions: 15
Worksheet time: 8mins
What are the properties of air that affect air distribution system design or installation?
All of the above
Manner in which air absorbs heat
Weight of air
Air separation into layers
What are the basic types of air duct systems?
Round ducts
Square ducts
All of the above
Rectangular ducts
What is the purpose of an air curtain?
All of the above
To stop flow of conditioned air out
To direct air across an opening
To block infiltration of outside air
What is the purpose of a fire damper?
To stop flow of conditioned air out
To block infiltration of outside air
To close automatically on detection of heat
All of the above
What is the purpose of a damper in a forced-air system?
To control temperature
All of the above
To balance airflow
To allow or stop airflow
What is the purpose of a whole house fan?
To provide free cooling
To manage indoor temperature
To blow out hot air and draw in cool air
All of the above
What is the purpose of a heat recovery ventilator (HRV)?
All of the above
To provide energy recovery
To control fresh-air intake
To maintain positive pressure
What is the purpose of a fresh air damper?
To provide energy recovery
To maintain positive pressure
To control fresh-air intake
All of the above
What is the purpose of a gravity circulation system?
To circulate warm air
To circulate cool air
All of the above
To circulate air intermittently
What is the purpose of a variable speed blower in an air circulation system?
To vary airflow
To adjust temperature
All of the above
To control humidity
What is the purpose of a heat in air system?
All of the above
To compare moisture level of air at a given temperature
To store heat or energy within moisture in air
To increase or decrease dry-bulb temperature
What is the purpose of a stratification system?
All of the above
To settle air at different heights according to temperature
To maintain proper placement of components
To prevent air separation into layers
What is the purpose of a positive pressure system?
All of the above
To control fresh-air intake
To keep air at reasonable temperature
To maintain oxygen content
What is the purpose of a fire damper?
To stop flow of conditioned air out
To block infiltration of outside air
To close automatically on detection of heat
All of the above
What is the purpose of a friction loss system?
All of the above
To calculate airflow rates
To measure pressure drop
To determine size of ducts
