CNST Exam #2 (Test File) Questions
and Answers (Latest Update 2026)
Ventilation of an attic space is generally considered important in... -
correct answer ✅all climates
Factor(s) that directly affect air leakage in a building are the... -
correct answer ✅a. area of the envelope prone to leakage
c. air pressure differential between inside and outside
*A and C
The rate at which water vapor diffuses through an assembly is a
function of... -
correct answer ✅the vapor permeance of the assembly
of the following assemblies/materials, which is most vapor
impermeable? -
correct answer ✅a concrete masonry wall (8 in thick)
Which of the following types of construction generally has the
greatest air infiltration rate? -
correct answer ✅wood light frame
, CNST Exam #2 (Test File) Questions
and Answers (Latest Update 2026)
An air retarder is generally placed... -
correct answer ✅on the exterior face of an exterior wall assembly
The best way to maintain good air quality in a tightly sealed
building is to... -
correct answer ✅use a system of controlled mechanical ventilation
such as HRV or ERV air-to-air heat exchangers
The phenomenon that kills the largest number of building
occupants in the US is -
correct answer ✅building fires
Which factor(s) affect fire safety in buildings? -
correct answer ✅All of the above
The primary purpose of sealants and weather stripping is to... -
correct answer ✅reduce air leakage through envelope
The material used to seal an opening in a building assembly where
a pipe penetrates a fire rated floor is called... -
correct answer ✅fire stopping
and Answers (Latest Update 2026)
Ventilation of an attic space is generally considered important in... -
correct answer ✅all climates
Factor(s) that directly affect air leakage in a building are the... -
correct answer ✅a. area of the envelope prone to leakage
c. air pressure differential between inside and outside
*A and C
The rate at which water vapor diffuses through an assembly is a
function of... -
correct answer ✅the vapor permeance of the assembly
of the following assemblies/materials, which is most vapor
impermeable? -
correct answer ✅a concrete masonry wall (8 in thick)
Which of the following types of construction generally has the
greatest air infiltration rate? -
correct answer ✅wood light frame
, CNST Exam #2 (Test File) Questions
and Answers (Latest Update 2026)
An air retarder is generally placed... -
correct answer ✅on the exterior face of an exterior wall assembly
The best way to maintain good air quality in a tightly sealed
building is to... -
correct answer ✅use a system of controlled mechanical ventilation
such as HRV or ERV air-to-air heat exchangers
The phenomenon that kills the largest number of building
occupants in the US is -
correct answer ✅building fires
Which factor(s) affect fire safety in buildings? -
correct answer ✅All of the above
The primary purpose of sealants and weather stripping is to... -
correct answer ✅reduce air leakage through envelope
The material used to seal an opening in a building assembly where
a pipe penetrates a fire rated floor is called... -
correct answer ✅fire stopping
