,What is the primary purpose of using a moisture barrier on
a subfloor before installing hardwood flooring?
A) To support structural integrity
B) To enhance acoustic properties
C) To prevent moisture migration
D) To improve aesthetic appeal
Answer: C) To prevent moisture migration
Rationale: Moisture barriers are crucial for preventing
moisture from migrating upward from the subfloor, which
can damage hardwood flooring over time.
---
Question 2:
Which of the following is the most effective method for
testing moisture content in concrete subfloors?
A) Visual inspection
B) Calcium chloride test
C) Thermal imaging
D) Acoustic testing
Answer: B) Calcium chloride test
Rationale: The calcium chloride test is widely used for
accurately measuring the moisture vapor emission rate from
concrete subfloors.
, plywood subfloors under hardwood flooring?
A) 0-3%
B) 4-7%
C) 8-12%
D) 13-15%
Answer: C) 8-12%
Rationale: Hardwood flooring installations require an
appropriate moisture balance; plywood subfloors should
typically be within 8-12% moisture content to minimize
issues.
---
Question 4:
Which substrate preparation technique is essential before
installing luxury vinyl tiles?
A) Sanding
B) Acid etching
C) Leveling
D) Sealing
Answer: C) Leveling
Rationale: Ensuring that the substrate is level is crucial for
the proper installation of luxury vinyl tiles to prevent uneven
wear and appearance issues.
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