♡ Login
Home
Previous Papers
★
MCQs
Civil Engineering
Pollution (Air and Noise)
What type of noise can be abated ...
Que.
What type of noise can be abated by providing lining on walls and ceiling with sound absorbing materials ?
A.
Source noise
B.
Reflection noise
C.
Structural noise
D.
Direct air -borne noise
Right Answer is :
✓ B. Reflection noise
⚑ Report
Views 👍 :1.1K
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ Pollutant standards Index (PSI) value in between ...
➣ Main impact of Greenhouse effect is : ...
➣ Concentration of ozone in clean air is ...
➣ A shall discrete mass of solid or ...
➣ Concentration of krypton in clean air is ...
➣ For gravity settling chamber, settling velocity should ...
➣ Looping occurs when : ...
➣ When Environmental Lapse Rate equals to Adiabatic ...
➣ Carbon monoxide has more affinity with haemoglobin ...
➣ When Environmental Lapse Rate equals to Adiabatic ...
❖ Take a qick MCQ Test on
➤ Steel Structure
➤ Fluid Mechanics and Hydraulics
➤ Miscellaneous
➤ Water Supply
➤ Hydrology
➤ Soil Mechanics and Foundation
➤ Concrete Structure
➤ Concrete Technology