Question:
What type of noise can be abated by providing lining on walls and ceiling with sound absorbing materials?
What type of noise can be abated by providing lining on walls and ceiling with sound absorbing materials?
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Sound absorbing materials are used to:
• Reduce reverberation.
• Control reflected sound.
• Improve room acoustics.
• Reduce reverberation.
• Control reflected sound.
• Improve room acoustics.
Updated On: Jul 23, 2026
- Source noise
- Reflection noise
- Structural noise
- Direct air-borne noise
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Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Concept:
Sound absorbing materials are provided on walls and ceilings to reduce reflected sound inside a room.
These materials absorb incident sound waves and reduce reverberation, thereby minimizing reflected noise.
They do not eliminate the noise generated at the source or structural vibrations.
Step 1: Understand the purpose of sound absorbing materials. Materials such as acoustic tiles, mineral wool, and perforated boards absorb sound energy instead of reflecting it. This reduces multiple reflections within enclosed spaces.
Step 2: Identify the type of noise controlled. Since the treatment reduces reflected sound, \[ \boxed{\text{Reflection noise is minimized}.} \] Therefore, the correct option is \[ \boxed{(B)\;\text{Reflection noise}.} \]
Step 1: Understand the purpose of sound absorbing materials. Materials such as acoustic tiles, mineral wool, and perforated boards absorb sound energy instead of reflecting it. This reduces multiple reflections within enclosed spaces.
Step 2: Identify the type of noise controlled. Since the treatment reduces reflected sound, \[ \boxed{\text{Reflection noise is minimized}.} \] Therefore, the correct option is \[ \boxed{(B)\;\text{Reflection noise}.} \]
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