NATE Air Distribution Test (Latest Update 2026 / 2027) Questions with Correct Answers | Grade A

NATE Air Distribution Test (Latest
Update ) Questions with
Correct Answers | Grade A


Question:
How many holes must be made in a round duct in order to take a series of
traverse readings?
Answer:
Two




Question:
A thermo-anemometer measures
Answer:
FPM directly




Question:
Dehumidification occurs when an air conditioning coil
Answer:
Operates at or below the dew point of the air moving across it

,Question:
Who usually determines if a duct leakage test is to be performed and the test
pressure at which it will be performed?
Answer:
The design engineer




Question:
When the dry bulb temperature increases, the relativity humidity of air
Answer:
Decreases




Question:
When the dry bulb temperature increases, the specific volume of the air
Answer:
Increases




Question:
When the dry bulb temperature increases, the density of air
Answer:
Decreases

,Question:
The cfm per ton rate for normal comfort cooling is approximately
Answer:
400 CFM per Ton




Question:
Cooling air raises its
Answer:
Relative humidity




Question:
Air with a dry bulb temperature of 60 degrees and a wet bulb temperature of
60 degrees has a relative humidity of
Answer:
100%




Question:
Air with a dry bulb temperature of 60 degrees and a wet bulb temperature of
60 degrees has a dew point temperature of
Answer:
70 degrees

, Question:
Return air grilles are not to be installed in
Answer:
Bathrooms or kitchens




Question:
The proper amount of air in CFM for each room is determined by
Answer:
A detailed room-by-room heat load calculation




Question:
On residential duct installations the accepted method of attaching duct
sections to each other is?
Answer:
Using the slip and drive method




Question:
Which of the following is not an acceptable location for a thermostat?
Answer:
Five feet off the floor on an outside wall