NIHL
Def.
Passive v. Active
How loud is loud
Time
The Ear
100
True or False. Noise Induced Hearing Loss (NIHL) can happen to anyone at any age.
True
100
What is the term we use for unwanted sound?
Noise
100
DAILY DOUBLE: Ear plugs are an example of _________ hearing protection.
Passive
100
DAILY DOUBLE: Name three ways to limit your exposure to loud sounds.
Lower the volume
Limit listening time
Move away from the noise
Use ear protection/noise cancelling headphones
100
True or False. You will notice the damage from noise exposure immediately.
False. Since the damage from noise exposure is gradual, it might not be noticed at first.
100
True or False: The ear contains three small bones
True...The OSSICLES: Malleus (hammer), Incus (anvil), Stapes (stirrup)
200
DAILY DOUBLE: What does NIHL stand for?
Noise Induced Hearing Loss
200
What measurement is used for sound?
Decibels (dB)
200
__________ hearing protection is the one that most people are familiar with. These ear products stop sound from getting through to the eardrum.
Passive
200
Normal Conversation is about how many decibels
60 dB
200
According to NIOSH: At 85 dB, the maximum recommended exposure time to noise is _____ hours.
8 hours
200
DAILY DOUBLE: The Pinna (auricle), Ear (auditory) Canal, and Eardrum (tympanic membrane) make up which part of the ear?
Outer Ear
responsible for collecting sound waves and funneling them toward the middle ear
300
Hearing loss that results in damage caused by noise from excessively loud sounds that cannot be medically corrected is known as?
Noise Induced Hearing Loss (NIHL)
300
DAILY DOUBLE: What is it called when you have a loud ringing, roaring, or buzzing in your ear due to NIHL?
Tinnitus
300
________ hearing protection is the kind that typically uses electric components to amplify or suppress sounds in the immediate environment. They allow non-harmful sounds to be heard while blocking out harmful sounds.
Active
300
What decibel number is considered the last "safe" listening level? (Hint: Conservation Program required by OSHA)
85 dB
300
What is the least amount of "quiet time" you should allow your ears after being exposed to loud noise?
10 Minutes
Aim for 10-20 minutes of quiet time after a loud job to reduce the risk of permanent damage.
300
The Ossicles (hammer, anvil, and stirrup) and the Eustachian Tube make up which part of the ear?
Middle Ear
amplifies sound vibrations and transmits them to the inner ear
400
OSHA: How long can you safely listen to sound that is about 100 decibels before it can start to cause NIHL?
2 hours
400
Two-word term for a noise exposure level at which an employer must implement a hearing conservation program
Action Level (AL)
OSHA's Action Level: 85 dB (8-hr TWA)
400
True or False. Passive hearing protection makes it hard to hear commands or other people talking to you.
True
400
Jet engine at takeoff or a shotgun blast is about how many decibels
140 dB
400
Because you may experience different noise levels throughout your day, use this method to calculate your overall daily exposure
Time-Weighted Average (TWA)
add up all your different noise levels and times, then calculate the average. If the TWA exceeds 85 dB, you need a hearing conservation program and hearing protection.
400
What is the snail-shaped organ in your inner ear called that contains hair cells
COCHLEA
500
NIOSH: How long can you safely listen to sound that is about 100 decibels (dB) before it can start to cause NIHL
15 minutes
500
The maximum allowable noise exposure limit according to OSHA.
Hint: PEL
Permissible Exposure Limit (PEL)
OSHA's PEL: 90 dB
Exposures above the PEL require engineering/administrative controls or hearing protection to reduce risk.
500
True or False. Passive hearing protection allows you to have a conversation, hear commands and the surrounding environment and exclude dangerous noises.
False. The correct answer is Active hearing protection.
500
DAILY DOUBLE: According to the Guinness World Record, this is the loudest stadium in the world at 142.2 dB
500
The safe listening level is cut in half for every ___dB rise in noise levels over 85 dB. (According to OSHA)
Also called Exchange Rate
5 dB 
500
Cochlea, Semicircular Canals, and Auditory (Cochlea) Nerve make up which part of the ear
Inner Ear
converts mechanical sound vibrations into electrical signals the brain can interpret, also used to maintain balance