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WorksheetsCrescendo
Total questions: 11
Worksheet time: 7mins
Exposure to very loud sound for long period of time will damage hair cells in the ear and leads to noise-induced hearing loss.
True
False
People who works in setting where noise level is very high should have hearing check annually.
True
False
Earmuff is the only hearing protection device that can help to reduce noise.
True
False
Which of the following is/are components of Crescendo hearing protection?
Acoustic chamber
Tuned membrane
Sound damping mesh
TPE earpiece
Different filter is used in each type of Crescendo hearing protection depending on the use cases.
True
False
What are the benefits of Crescendo?
Blocks all sounds to avoid conversation
Allows air ventilation of the ear
Reduces noise and loud sound to safe level
Filters and ear tips are washable and reusable
How is the amount of attenuation expressed?
Signal to Noise Ratio
Single Number Rating
Noise Reduction Ratio
Noise Reduction Rating
Choose the true statements :
All products use the same filter
The shape of the frequency curve can be affected by the filter
Different filters will have different number of NRR
One can use sound level meter to measure the environmental sound level at the workplace
Choose the true statement :
Crescendo product cannot be used in conjunction with earmuff
Crescendo Music 20 is suitable to used by violinist who often perform in orchestra
Crescendo FLY cannot be used throughout the flight, it should only be used during take-off and landing
Crescendo Office 15 helps reduce office sound and noise so that you do not need to response to your boss
Choose the true statements :
Crescendo Sleep 25 is suitable to wear to sleep for whole night
One has to be careful while using Swim & Surf as it will sink deep in the pool
Swim & Surf prevents water from going into the ear while not blocking the sound from going in
Signal to Noise Ratio is used to express the number of attenuation of a hearing protection device
What are include in one Crescendo ear plugs package?
2 Small universal eartips
2 Medium universal eartips
2 Large universal eartips
1 Aluminum carrying case
Manual guide
