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Building & Construction Practice Test: Acoustics
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Acoustics topics include: Audible sound characteristics, reflection, reverberation and absorption, common acoustical defects, halls and studios acoustical design, auditorium acoustic design and defects Acoustics is a branch of physics that studies mechanical waves in solids, liquids, and gases. It includes topics such as vibration, ultrasound, sound, and infrasound. Acoustics is not limited to phenomena that can be heard by humans and animals. It also includes phenomena with frequencies so low (infrasound) or so high (ultrasound) that cannot be heard by a normal person.  Acoustics is an... Show more
Building & Construction Practice Test: Acoustics
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25 Questions

1. The intensity of sound is proportional to __________ of amplitude.
2. Felt and mineral wool are examples of ___________
3. ______________ of sound is affected by frequency of sound.
4. In rigid homogeneous walls, the transmission loss of a one-brick wall is _________
5. _______________ defect is due to the lack of reflecting surfaces near the source of sound and excessive absorption of sound in the hall.
6. The ________________ is the degree of sensation.
7. The defect of ___________ results in confusion with the sound created next.
8. The speed of sound is taken as __________
9. The intensity of sound depends on the ear of the listener.
10. In the acoustical design of a studio, the ratio of height, breadth and length of the studio should be _________
11. Which of the following is not a characteristic of sound?
12. _________ is the number of cycles made by a sounding body per unit time.
13. For lecture halls, large volumes are beneficial for weak sounds.
14. Rock wool comes under which of the following classifications of absorbents?
15. Concrete floor floating construction provides good insulation against __________ sounds.
16. The term __________ is used to indicate a big room or a hall where sound is picked up by a microphone and it includes the radio broadcasting station, television station, etc.
17. Rotatable cylinders are provided in the ceiling of a studio in order to obtain variable __________
18. The unit of absorption is ____________
19. The adequate absorbing surfaces should be provided in the hall to control the ____________
20. Reverberation time is independent of the shape of the room.
21. Insulation of __________ over a base concrete floor is obtained by using resilient surface material on floors.
22. The sound insulation offered by rigid homogenous walls decreases with the increase in the thickness of the wall.
23. ____________ is a very important consideration in the acoustic design of an Auditorium and it involves geometrical aspects of the hall.
24. According to International agreement, the frequency is measured in ________
25. The formation of echoes can take place when the reflecting surfaces are located at a distance greater than __________