NATE AIR DISTRIBUTION EXAM STUDY GUIDE
Ductwork in an unconditioned space - Answers- must be insulated and have a vapor
barrier
Drive cleats - Answers- Are installed on the shorter side of the duct
Superheat - Answers- is sensible heat that is added to a vapor
A drain lines diameter from a drain pan must be - Answers- no smaller than 3/4'
A drain line from an emergency drain pan must be terminated - Answers- In a location
where occupants can see water draining
COP= - Answers- output watts/input watts
Ventilation requirements are - Answers- .35AC/H or 20CFM per person
Main trunk line velocity is - Answers- 700-900 FPM
700-900FPM - Answers- Main trunk line velocity
sewage vent - Answers- Economizers should not be located near a
Should not be located near a sewage vent - Answers- Economizers
A duct traverse - Answers- will give you an average cfm using multiple velocity reading
and mathematically converting them
As media filter efficiency increases - Answers- the particulate size decreases and the
pressure drop increases
decreases - Answers- As media filter efficiency increases particulate size
increases - Answers- As media filter efficiency increases pressure drop
S clips and drive cleats - Answers- a traverse joint is joined using
Oil burners use a - Answers- combustion air fan and oil pump for operation
Combustion air fan and oil pump for operation - Answers- oil burners use a
On 1 inch thick duct board an edging tool will cut - Answers- 1/2 inch in depth
Heat recovery ventilator warms air - Answers- from outside
Ductwork in an unconditioned space - Answers- must be insulated and have a vapor
barrier
Drive cleats - Answers- Are installed on the shorter side of the duct
Superheat - Answers- is sensible heat that is added to a vapor
A drain lines diameter from a drain pan must be - Answers- no smaller than 3/4'
A drain line from an emergency drain pan must be terminated - Answers- In a location
where occupants can see water draining
COP= - Answers- output watts/input watts
Ventilation requirements are - Answers- .35AC/H or 20CFM per person
Main trunk line velocity is - Answers- 700-900 FPM
700-900FPM - Answers- Main trunk line velocity
sewage vent - Answers- Economizers should not be located near a
Should not be located near a sewage vent - Answers- Economizers
A duct traverse - Answers- will give you an average cfm using multiple velocity reading
and mathematically converting them
As media filter efficiency increases - Answers- the particulate size decreases and the
pressure drop increases
decreases - Answers- As media filter efficiency increases particulate size
increases - Answers- As media filter efficiency increases pressure drop
S clips and drive cleats - Answers- a traverse joint is joined using
Oil burners use a - Answers- combustion air fan and oil pump for operation
Combustion air fan and oil pump for operation - Answers- oil burners use a
On 1 inch thick duct board an edging tool will cut - Answers- 1/2 inch in depth
Heat recovery ventilator warms air - Answers- from outside
