MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Building Construction knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following constructions is effective against both air-borne and structure-borne sounds? |
| A. | Timber floor floating construction |
| B. | Use of resilient surface material |
| C. | Timber floor with suspended ceiling and air space |
| D. | Concrete floor floating construction |
| Answer» D. Concrete floor floating construction | |
| 2. |
Insulation of __________ over a base concrete floor is obtained by using resilient surface material on floors. |
| A. | 1-5 dB |
| B. | 5-10 dB |
| C. | 12-15 dB |
| D. | 17-25 dB |
| Answer» C. 12-15 dB | |
| 3. |
The sound insulation offered by rigid homogenous walls decreases with the increase in the thickness of the wall. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
In cavity wall construction for soundproofing, the width of the cavity should be at least _________ |
| A. | 3 cm |
| B. | 5 cm |
| C. | 8 cm |
| D. | 12 cm |
| Answer» C. 8 cm | |
| 5. |
In rigid homogeneous walls, the transmission loss of a one-brick wall is _________ |
| A. | 10 dB |
| B. | 20 dB |
| C. | 50 dB |
| D. | 70 dB |
| Answer» D. 70 dB | |
| 6. |
Felt and mineral wool are examples of ___________ |
| A. | Non-porous rigid partitions |
| B. | Porous rigid materials |
| C. | Non-rigid porous materials |
| D. | Non-rigid non-porous materials |
| Answer» D. Non-rigid non-porous materials | |
| 7. |
The sound insulation of plastered solid brick masonry walls varies as __________ |
| A. | Weight per unit volume |
| B. | Weight per unit area |
| C. | Log of weight per unit volume |
| D. | Log of weight per unit area |
| Answer» E. | |
| 8. |
Calculate the transmission loss given the sound levels measured on either side of the wall is 60 dB and 40 dB. |
| A. | 20 dB |
| B. | 100 dB |
| C. | 60 dB |
| D. | 2400 dB |
| Answer» D. 2400 dB | |