Question

Which of the following could prevent earmuffs from providing your ears good protection from noise?

A. all of the answers choices are correct
B. ear rings
C. eye glasses
D. hair

Answer 1

The correct answer is A.

Ear muffs are supposed to sit flat against your ears to protect your ears from noise. Ear rings stick out from your ears and could slightly lift the ear muffs creating a gap between your ears and the ear muffs. Eye glasses have stems/arms that sit over the top of your ears that could also lift the ear muffs. Your hair could interfere with the ear muffs if it is over your ears.

Answer 2

Ear-rings, eyeglasses, and hair may prevent earmuffs from providing good protection to ears from the noise.

Further Explanation:

Earmuffs are designed to protect the ear from noise or to provide warmth.They consist of metal or thermoplastic headband that can easily fit over the back or top of the head. At each end,the cup or cushion is present. Earmuffs are of two types based on their function:

• Thermal earmuffs: This type of earmuffs is used in a cold environment to provide warmth to ear.

• Acoustic earmuffs: These earmuffs are also called as ear defenders made up of sound deadening material to protect the ear from noise. For extra protection from noise, earmuffs are used in conjugation with earplugs. They absorb sound waves by increasing the resistance to air and decrease the amplitude of the wave. Hearing protection is necessary to avoid any ear damage.

If an individual is wearing the earmuff, then hair, earrings, and eyeglasses hinder the purpose of wearing earmuffs. This is because ear muffs require a flat surface to protect the ear from noise. These substances create a gap between the ear and earmuffs.

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Answer Details:

Grade: High School

Subject: Health

Topic: Earmuffs

Keywords:

Earmuffs, thermal, acoustic, wave, headband, warmth, thermoplastic, avoid damage, flat surface, noise, earring, eyeglasses.