Acoustics quiz

Please answer the following 10 multiple choice questions, then click 'submit' to check the result. The pass mark for a CPD certificate is 8 out of 10, and you may retake the quiz as many times as you wish, but the questions will vary! Please note that one, two, three or all of the possible answers presented for each question may be right, and to gain a mark for that question all correct answers must be identified.

Good luck

Acoustics

To the human ear a 10 dB increase in sound 'feels' like an increase in loudness of how many times?

1
2
3
4

The online acoustic performance prediction tool is ...?

Based on an empirical approach derived from acoustic test results
Intended for estimating purposes only
Intended to provide precise predictions
Only part of the solution, exact specification of materials and quality of workmanship are also important

Which of these statements is correct?

It is generally easier to provide sound insulation for high frequency sound
It is generally easier to provide sound insulation for low frequency sound
Sound insulation materials have the same effect on high frequency and low frequency sound
Sound insulation is only required for low frequency sound

For walls within the same dwelling (internal walls) which of these statements is true?

Internal walls must be at least 150 mm thick
Two layers of plasterboard must be used on both sides of an internal wall
For internal walls it is not necessary to demonstrate compliance with regulations by PCT or using Robust Details
Specially designed 'acoustic' studs must be used for internal wall construction

In England and Wales the impact sound requirement for a separating floor between purpose built dwellings is ...?

L'nT,w < 52 dB
L'nT,w > 62 dB
L'nT,w > 52 dB
L'nT,w < 62 dB

For demonstrating compliance with the acoustic regulations which of these statements is correct?

Robust Details must be used for construction of new dwellings
Dwellings must either be constructed using Robust Details or on-site acoustic testing must be carried out
A qualified acoustic engineer must assess the details used for constructing dwellings
All dwellings must undergo on-site acoustic testing

Sound insulation requirements are included in which part of the England and Wales Building Regulations?

E
B
A
L

Impact sound insulation is generally important for what?

Floors only
Walls only
Floors and walls
Neither walls nor floors

For integration of elements which of these statements are correct?

It is necessary to consider the detailing for integration of elements to maintain acoustic performance
Only structural elements such as beams and columns are significant to sound insulation
Domestic scale pipes and electric cables are insignificant to sound insulation
Pipes and cables cannot be included in a domestic separating wall

For separating floors between dwellings which of these statements are true?

Separating floors must include structural concrete
The ceiling part of the floor can have a significant effect on the acoustic performance
The floor treatment applied is usually insignificant to the acoustic performance
There is a wide range of separating floor solutions that can be used in steel framed buildings