A. Mufflers (silencers)
B. Acoustic absorbent
C. Lagging of noisy duct
D. None of these
Correct Answer: Mufflers (silencers) ✔
Last Updated: March 11, 2019
A. Mufflers (silencers)
B. Acoustic absorbent
C. Lagging of noisy duct
D. None of these
Correct Answer: Mufflers (silencers) ✔
Last Updated: March 11, 2019