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CMP 124 final Exams| 63 Solved Questions with Verified Answers
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CMP 124 final Exams| 63 Solved Questions with Verified Answers
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CMP 124 final Exams| 63 SolvedQuestions with Verified Answers
How to prevent nail pops? - ✔✔-Use
shorter nails -Use screws
-Use dry lumber
-Use steel studs
-Use adhesives on walls and ceilings
Drywall functions : - ✔✔Low cost, Fire control, sound control
"NRC" - "STC" Stands for? - ✔✔(Noise reduction coefficient) &
(Sound transmission class)
Sound control - ✔✔*Hard, flat surfaces (masonry, glass) can reflect up
to 98% of the sound .
Sound control:
-Amount of sound absorption depends on? - ✔✔-
Thickness -Size and # of pores
- Frequency of the sound
, STC # rating meaning? - ✔✔The higher the # rating the better
How to improve STC of light weight assemblies? - ✔✔-Adding fibrous
insulation in stud cavaties
-Use multiple gypsum board materials
-Stagger studs on 2x6 plates
Caulk - ✔✔Designed to fill gaps, prevent moisture
Sealant - ✔✔Caulk with higher adhesive qualities
Urethane - ✔✔Usually brick / exterior work
Where can you not use silicone? - ✔✔Bathroom because it can mold
Caulk bases - ✔✔Oil base: lower cost
Latex base: dry out - crack
Acrylic latex: Painters caulk
Silicone: highest cost
Urethane: long life but cannot paint
Construction adhesive purposes - ✔✔-Increase material
strength -saves labor
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