Quiz answers: Reducing noise transmission

Correct answers are in bold text.

1. Which of the following statements is true?

a. All noise control work must have a building consent.
b. The performance requirements for sound insulation are set out in Clause G6 of the Building Code.
c. All building work must have a building consent and comply with the Building Code.

2. For sound insulation, which are typically weak elements in an external wall assembly?

a. A window or door opening.
b. A hot-point/light switch/power socket.
c. A fire collar.
d. All of the above.

3. Can you interchange building products specified as part of a wall assembly system?

a. Yes, there are no real issues.
b. Sometimes, but it depends if it is an external or internal wall. It is not recommended, but the product must meet the Building Code to the same extent as the substituted product in all respects.
c. No, changing any part of a building system is not permitted.

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