CTD 221 EXAM QUESTIONS WITH VERIFIED SOLUTIONS LATEST UPDATE 2026
Which code focuses on the removal or evacuation of all persons from a building? - Answers NFPA 101
Life Safety Code
Flame resistance applies to: - Answers Finishes and applied materials
Which of the following is not one of the three basic types of regulations that will guide the
development of an interior project: - Answers laws
Which of the following is considered an Educational occupancy? - Answers Elementary school
classrooms
C3-Codes are published by the__________. - Answers NFPA
The life-cycle cost of a material includes all the following except ________________. - Answers Taxes
Which building type according to the IBC has the most restrictions on building materials? - Answers
Type I-A
According to the IBC building ___________ construction is defined as being comprised of exterior
walls composed of non-combustible materials and any material type is allowed on interior walls. -
Answers Type III
The Mission of ___________________ is to enhance both the global competitiveness of U.S. business
and the U.S. quality of life by promoting and facilitating voluntary consensus standards and
conformity assessment systems, and safeguarding their integrity. - Answers ANSI
Which occupancy group typically includes theaters, concert halls, and auditoriums? - Answers Group
A - Assembly
Which principle is emphasized in sustainable design? - Answers Select products with low carbon
footprint over their lifecycle
Standards are guidelines that are adopted by a governing entity to set minimum standards for the
development of particular aspects of a building. - Answers false
Which test measures fire-resistance of assemblies? - Answers ASTM E119
Which of the following is NOT one of the five core criteria for material selection? - Answers
Aesthetics
Which building type generally requires the highest fire-resistance rating? - Answers Type I
What is noise? - Answers An unwanted sound that can damage inner-ear hair cells
What does an STC rating measure? - Answers How much sound is stopped by building materials
Acoustics is an unwanted sound; its intensity ('loudness') is measured in decibels (dB). - Answers
False
Which of the following materials has the highest Noise Reduction Coefficient rating? - Answers
Plywood
Noise can be harmful in the workplace, so it is regulated by __________________. - Answers OSHA
Which of the following should be designed for the highest level of privacy? - Answers Conference
Rooms
55 isolation/impact insulation rating is below the international code rating, indicating impact vibration
noise is significantly reduced. - Answers False
When sound "bounces" off a surface it is considered to be a "live surface. - Answers True
NRC ratings are an established way to measure how much sound is stopped by building materials -
Answers False
_________________ measures speech intelligibility or how well occupants can hear and understand
speech in a space. - Answers Privacy Index
_______________ is defined as the science that deals with the production, control, transmission,
reception, and effects of sound - Answers Acoustics
Which of the following is not a factor in sound control? - Answers Reverberation
Which of the following hides imperfections and rough textures? - Answers Underbodies
_____________________hold back stains and substances on the wall from "bleeding" through to the
surface of the paint - Answers Sealers
According to the lecture which of the following is not a "key" factor in selecting paint? - Answers
Stain resistance
Which of the following type of oil paint dries harder, and faster than the other oil-based paints. -
Answers Alkyds
Type I is a light-duty wallcovering and is intended for use on interior commercial walls where a
combination of wall protection and design effect is desired. - Answers True
Which code focuses on the removal or evacuation of all persons from a building? - Answers NFPA 101
Life Safety Code
Flame resistance applies to: - Answers Finishes and applied materials
Which of the following is not one of the three basic types of regulations that will guide the
development of an interior project: - Answers laws
Which of the following is considered an Educational occupancy? - Answers Elementary school
classrooms
C3-Codes are published by the__________. - Answers NFPA
The life-cycle cost of a material includes all the following except ________________. - Answers Taxes
Which building type according to the IBC has the most restrictions on building materials? - Answers
Type I-A
According to the IBC building ___________ construction is defined as being comprised of exterior
walls composed of non-combustible materials and any material type is allowed on interior walls. -
Answers Type III
The Mission of ___________________ is to enhance both the global competitiveness of U.S. business
and the U.S. quality of life by promoting and facilitating voluntary consensus standards and
conformity assessment systems, and safeguarding their integrity. - Answers ANSI
Which occupancy group typically includes theaters, concert halls, and auditoriums? - Answers Group
A - Assembly
Which principle is emphasized in sustainable design? - Answers Select products with low carbon
footprint over their lifecycle
Standards are guidelines that are adopted by a governing entity to set minimum standards for the
development of particular aspects of a building. - Answers false
Which test measures fire-resistance of assemblies? - Answers ASTM E119
Which of the following is NOT one of the five core criteria for material selection? - Answers
Aesthetics
Which building type generally requires the highest fire-resistance rating? - Answers Type I
What is noise? - Answers An unwanted sound that can damage inner-ear hair cells
What does an STC rating measure? - Answers How much sound is stopped by building materials
Acoustics is an unwanted sound; its intensity ('loudness') is measured in decibels (dB). - Answers
False
Which of the following materials has the highest Noise Reduction Coefficient rating? - Answers
Plywood
Noise can be harmful in the workplace, so it is regulated by __________________. - Answers OSHA
Which of the following should be designed for the highest level of privacy? - Answers Conference
Rooms
55 isolation/impact insulation rating is below the international code rating, indicating impact vibration
noise is significantly reduced. - Answers False
When sound "bounces" off a surface it is considered to be a "live surface. - Answers True
NRC ratings are an established way to measure how much sound is stopped by building materials -
Answers False
_________________ measures speech intelligibility or how well occupants can hear and understand
speech in a space. - Answers Privacy Index
_______________ is defined as the science that deals with the production, control, transmission,
reception, and effects of sound - Answers Acoustics
Which of the following is not a factor in sound control? - Answers Reverberation
Which of the following hides imperfections and rough textures? - Answers Underbodies
_____________________hold back stains and substances on the wall from "bleeding" through to the
surface of the paint - Answers Sealers
According to the lecture which of the following is not a "key" factor in selecting paint? - Answers
Stain resistance
Which of the following type of oil paint dries harder, and faster than the other oil-based paints. -
Answers Alkyds
Type I is a light-duty wallcovering and is intended for use on interior commercial walls where a
combination of wall protection and design effect is desired. - Answers True
