NCIDQ IDFX final Exam | Questions and Answers |
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Terms in this set (244)
What is a safety data sheet (SDS)? Document provided by a manufacturer containing
info about the physical makeup of a substance,
proper storage and handling procedures, and
other safety issues.
Define composite wood veneer. Product made by slicing readily available, fast-
growing trees into veneers, dyeing the veneers,
and then gluing them together to create an
artificial log. The log is then re sliced to produce a
variety of wood veneers.
Define clerestory. Vertically glazed area placed between 2 different
roof levels to admit natural light.
What is the unit of measure for the The hertz is the unit of measure for this and is equal
frequency of sound? to one cycle per second (Hz)
What is the unit of measure for sound The decibel (dB) is the unit of measure for this.
intensity, based on a logarithmic
scale?
What do most people perceive When a sound increases by this amount, most
when a sound increases by 10 dB? people perceive a doubling in loudness.
, What frequency range can be heard This range is 20 Hz to 20,000 Hz.
by most healthy young people?
What is the coefficient of This is the ratio of the sound intensity absorbed by
absorption? a material to the total sound intensity reaching the
material.
What is the noise reduction This is a single-number average of a material's
coefficient (NRC)? coefficients of absorption at 250 Hz, 500 Hz, 1000
Hz, and 2000 Hz, rounded to the nearest 0.05.
What is reverberation time? This is the time it takes for the sound level in a
space to decrease 60 dB after the source has
stopped producing the sound.
What is the ceiling attenuation class This is a single-number measure of the transmission
(CAC)? loss through ceiling tiles between two closed
rooms where there is no barrier above the
suspended ceiling.
What percentage range of a 30% to 40% of a commercial buildings total energy
commercial building's total energy use is typically devoted to this.
use is typically devoted to electric
lighting and the cooling it requires?
What are the 3 most common types The 3 most common types are: Float, Tempered,
of interior glazing? and Laminated
What are the primary elements used Copper and tin are used to make this material.
to make bronze?
What is a concrete masonry unit? This building product, abbreviated CMU, is also
commonly known as concrete block.
Verified Solutions | 2026 Edition | Pass
Guaranteed
Save
Terms in this set (244)
What is a safety data sheet (SDS)? Document provided by a manufacturer containing
info about the physical makeup of a substance,
proper storage and handling procedures, and
other safety issues.
Define composite wood veneer. Product made by slicing readily available, fast-
growing trees into veneers, dyeing the veneers,
and then gluing them together to create an
artificial log. The log is then re sliced to produce a
variety of wood veneers.
Define clerestory. Vertically glazed area placed between 2 different
roof levels to admit natural light.
What is the unit of measure for the The hertz is the unit of measure for this and is equal
frequency of sound? to one cycle per second (Hz)
What is the unit of measure for sound The decibel (dB) is the unit of measure for this.
intensity, based on a logarithmic
scale?
What do most people perceive When a sound increases by this amount, most
when a sound increases by 10 dB? people perceive a doubling in loudness.
, What frequency range can be heard This range is 20 Hz to 20,000 Hz.
by most healthy young people?
What is the coefficient of This is the ratio of the sound intensity absorbed by
absorption? a material to the total sound intensity reaching the
material.
What is the noise reduction This is a single-number average of a material's
coefficient (NRC)? coefficients of absorption at 250 Hz, 500 Hz, 1000
Hz, and 2000 Hz, rounded to the nearest 0.05.
What is reverberation time? This is the time it takes for the sound level in a
space to decrease 60 dB after the source has
stopped producing the sound.
What is the ceiling attenuation class This is a single-number measure of the transmission
(CAC)? loss through ceiling tiles between two closed
rooms where there is no barrier above the
suspended ceiling.
What percentage range of a 30% to 40% of a commercial buildings total energy
commercial building's total energy use is typically devoted to this.
use is typically devoted to electric
lighting and the cooling it requires?
What are the 3 most common types The 3 most common types are: Float, Tempered,
of interior glazing? and Laminated
What are the primary elements used Copper and tin are used to make this material.
to make bronze?
What is a concrete masonry unit? This building product, abbreviated CMU, is also
commonly known as concrete block.
