Air Duct Installation and Standards Quiz
Test your knowledge on air duct materials, standards, and best practices with our HVAC engineering quiz!
#1
What is the recommended material for constructing air ducts?
Wood
Aluminum
Plastic
Cardboard
#2
Which of the following is NOT a common type of air duct?
Round
Rectangular
Hexagonal
Oval
#3
What is the recommended minimum clearance for air ducts in residential buildings?
2 inches
4 inches
6 inches
8 inches
#4
Which organization sets the standards for air duct installation?
American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)
International Code Council (ICC)
Occupational Safety and Health Administration (OSHA)
American National Standards Institute (ANSI)
#5
What is the typical velocity range for air flow in ducts used in residential HVAC systems?
10-30 feet per second
40-60 feet per second
70-90 feet per second
100-120 feet per second
#6
What is the purpose of an air duct sizing calculation?
To determine the appropriate material for duct construction
To ensure the ducts can handle the required airflow
To estimate the cost of duct installation
To regulate the temperature of the airflow
#7
Which of the following is a common method for sealing duct joints to prevent air leakage?
Using duct tape
Applying mastic sealant
Using caulking
Using metal straps
#8
What is the purpose of a fire damper in an air duct system?
To regulate airflow
To prevent the spread of fire
To filter out impurities
To control temperature
#9
Which type of ductwork material is best suited for high-temperature applications?
Fiberglass
PVC
Stainless Steel
Polyethylene
#10
What is the recommended maximum length for a straight run of flexible duct?
25 feet
50 feet
75 feet
100 feet
#11
Which of the following factors does NOT affect the efficiency of an air duct system?
Duct size
Insulation
Altitude
Air leakage
#12
Which type of air duct is typically used in high-velocity systems?
Flexible duct
Rectangular duct
Round duct
Spiral duct
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