hearing safety
Which of the following is a symptom of tinnitus? Select all that apply and then click DONE. 1.Ringing in the ears 2.Migraine headaches 3.Muffled sounds 4.Difficulty understanding speech
1.3.4
If a shift of an average of _____ decibels or more occurs in your hearing at 2000, 3000, or 4000 _____, further testing may be required to determine of the results are temporary or permanent. Select the correct answer and then click DONE. a.10, hertz b.85, decibels c. 95, frequency d.20, feet
a
Which of the following statements about noise-induced hearing loss are correct? Select all that apply and then click DONE. 1.Noise-induced hearing loss is 95% preventable. 2.Noise-induced hearing loss occurs gradually over time. 3.Once noise-induced hearing loss occurs, it is permanent. 4.Noise-induced hearing loss is 100% preventable.
2.3.4
What are the main components of a Hearing Conservation Program? Select all that apply and then click DONE. 1.Noise monitoring 2.Hearing tests 3.Hearing protection devices and training 4.Insurance
1.2.3
Which of the following are examples of personal hearing protection? Select all that apply and then click DONE. 1.Earplugs 2.Earmuffs 3.Headphones 4.Full-face respirators
1.2
Which of the following statements are true about the fit of earmuffs? Select all that apply and then click DONE. 1.Because the seal of the earmuff is around the outside of the ear, anything that comes between the ear and the muff can reduce their effectiveness. 2. Safety glasses, long hair, and certain hats can all cause an improper seal. 3.Earmuffs can be worn in any situation, in combination with any other headwear or PPE. 4.Earmuffs are only to be worn by equipment operators.
1.2
What can you do today that will protect your hearing? Select all that apply and then click DONE. 1.Understand the effects noise has on the ear 2.Utilize engineering controls and adhering to warning signs such as tinnitus 3.Always wear ear protection in high noise environments. 4.Protect your hearing only while at work.
1.2.3
What causes hearing loss? Select all that apply and then click DONE. 1.Exposure to excessive noise in the workplace 2.Exposure to hazardous excessive noise, gradually, over time 3.Exposure to excessive noise off the job 4.By wearing hearing protection when it is required
1.2.3
Which of the following engineering controls can reduce the effects of high noise levels? Select all that apply and then click DONE. 1. Equipment enclosures 2.Mufflers 3.Sound-absorbing materials 4.Earplugs
1.2.3
Which of the following statements are correct about how noise-induced hearing loss can be prevented? Select all that apply and then click DONE. 1. Follow the guidelines of your facilities' hearing conservation program, which will address prevention methods specific to your workplace. 2.Use engineering controls such as mufflers and equipment enclosures. 3. Use sound absorbing materials. 4.Noise-induced hearing loss cannot be prevented.
1.2.3
Which of the following tasks are all above the permissible exposure level? Select all that apply and then click DONE. 1.Grinding 2.Stamping 3.Many operations that require heavy machinery 4.Many tasks involving the use of non-powered hand tools
1.2.3
Which of the following are examples of engineering controls to reduce the exposure to dangerous noise levels? Select all that apply and then click DONE. 1.Use mufflers on tools and machinery. 2.Move noisy machinery to an area of the plant away from employees. 3.Wear hearing protection devices. 4.Use sound absorbing-material.
1.2.4
Which of the following are warnings that a shift has occurred in your hearing? Select all that apply and then click DONE. 1.A constant ringing in the ear called tinnitus 2.Muffled sounds 3.Ability to hear a wider range of sounds 4.Difficulty understanding speech
1.2.4
Which of the following are ways you can eliminate or mitigate hazardous noise? 1.Find an alternate means of doing the job 2. Maintain a safe distance from the noise source 3.Raise your voice to be heard by the person right next to you 4.Reduce the noise to a safe level with engineering controls
1.2.4
Which of the following statements are best practices for inserting earplugs? Select all that apply and then click DONE. 1.Use your thumb and forefinger to roll them into small, crease-free cylinders. 2. Insert the plug into your ear and hold in place for at least ten seconds to give the plug time to expand and form a tight seal in the ear canal. 3. It is possible to push the earplug too deep into the ear. 4.Earplugs are too short to cause any damage to the eardrum.
1.2.4
Which of the following statements are true about sensorineural hearing loss? Select all that apply and then click DONE. 1. It is a type of impairment to the inner ear. 2.This type of hearing loss is permanent. 3. It causes low frequency sounds to become muffled. 4.It causes high frequency sounds to become muffled.
1.2.4
Which of the following statements are true about preventing noise-induced hearing loss? Select all that apply and then click DONE. 1. You should always use engineering controls to eliminate or reduce noise levels when possible. 2. It is only necessary to wear hearing protection on the job. 3. Wear hearing protection when exposed to excessive noise, both on and off the job. 4.It is only necessary to wear hearing protection when you think it is too noisy off the job.
1.3
What are the three tiny bones in the ear that are moved when sound waves cause the eardrum to vibrate? Select the correct answer and then click DONE. a.Hammer, anvil, and stirrup b.Iris, pupil, and lid c.Humerus, radius, and ulna d.Carpal, metacarpal, and phalange
a
What is the Hearing Conservation Program? Select the correct answer and then click DONE. a.It provides guidelines to limit the hazards associated with prolonged excessive noise in the workplace. b.It provides guidelines on how to discipline workers who do not use hearing protection off the job. c. It provides guidelines on how to conduct an Incident Investigation. d.It provides guidelines on building a Fishbone Diagram.
a
Which of the following is a rule of thumb that can indicate when hearing protection is required? Select the correct answer and then click DONE. a.If you have to raise your voice to be heard by someone else less than two feet away b.If you have to raise your voice to be heard by someone else less than five feet away c.If you must raise your voice for your coworker to hear you at any time during the operation of a machine d. If you must remove your safety glasses to see a fine detail of the machine you are working on
a
Which statement is backed by studies of employees who are properly protected in a Hearing Conservation Program? Select the correct answer and then click DONE. a.They generally feel better, have more energy, and have a more positive attitude. b.They have negative attitudes towards safety and prevention of hearing loss. c. They are apathetic towards safety programs. d.There is no link between Hearing Conservation Programs and worker attitudes.
a
Which statement is true about choosing a personal hearing protection device? Select all that apply and then click DONE. a. Choose a device that is both comfortable and provides the proper protection. b.Choose a device with the lowest NRR. c. Choose a device that has the lowest cost per unit. d.There is no link between Hearing Conservation Programs and worker attitudes.
a
Each sound is measured by the __________ of cycles per second, called __________. Select the correct answer and then click DONE. a.vibrations, frequency b.frequency, hertz c.duration, vibration d.decibels, hearing
b
How long should you allow the plug to expand in your ear to create a tight seal? Select the correct answer and then click DONE. a.At least five seconds b.At least ten seconds c.At least sixty seconds d.You do not need to hold the earplug in place at all.
b
If the plugs you are wearing are reusable, make sure they are properly ________ and ________ after each use. a.washed, dried b.cleaned, stored c.replaced, disposed d.dated, returned
b
Properly used hearing protection devices will allow you to ________ your machinery, co-workers, and warning signals more ________. Select the correct answer and then click DONE. a. block out, safely b. hear, effectively c.drown out, quietly d.understand, fluently
b
What should you do before inserting earplugs? Select the correct answer and then click DONE. a.Let your supervisor know you are about to put on your earplugs. b.Make sure your hands are clean and dry, to prevent any infectious material from entering the ear. c.Flatten the earplugs between your thumb and forefinger. d.Use gloves to insert earplugs into your ears safely.
b
When exposure to noise equals or exceeds an 8-hour Time-Weighted Average of 85 decibels, what must be implemented? Select the correct answer and then click DONE. a.A Fishbone Diagram b.A Hearing Conservation Program c.A Fault Tree Analysis d.A Cost-Benefit Analysis
b
Which types of sounds are of the most concern, because they cause the most damage to the nerve endings inside the cochlea? Select the correct answer and then click DONE. a.Low frequency sounds b. High frequency sounds c. Mid-range sounds d.Low register voices
b
If the plugs you are wearing are reusable, which of the following statements are true? Select all that apply and then click DONE. a.Make sure they are properly cleaned and stored after each week. b. If they show signs of wear, replace them immediately. c.Make sure they are properly cleaned and stored after each use. d.Cleaning and replacement frequency are a personal preference.
b.c
What is the name of the measurement that measures the frequency of cycles per second? Select the correct answer and then click DONE. a.Cycle b.Frequency c. Hertz d.Vibrations
c
What is the purpose of an audiometric evaluation? Select the correct answer and then click DONE. a.To check your vision without glasses b.To size your ears for muffs c.To check your response to tones of different frequencies in each ear. d.To choose which earplugs are best for you.
c
When is hearing protection used? Select the correct answer and then click DONE. a.When you are able to eliminate dangerous noise levels from the workplace b.Never when you are off the job c.When engineering controls cannot reduce hazardous noise to acceptable levels d.Every working day
c
Your first audiometric test is called the ________. a.hearing test b.evaluation c.baseline d.audio test
c
All earplugs and earmuffs are given a Noise Reduction Rating by the manufacturer. Make sure the hearing protection devices you are using effectively reduce the decibels to the ________. Select the correct answer and then click DONE. a.Threshold Shift b.Occupational Exposure Limit c.Time-Weighted Average d.Permissible Exposure Level
d
Sound is a series of __________ that ripple through the air. Each up and down movement of one sound wave is considered a __________. Select the correct answer and then click DONE. a.waves, frequency b.frequency, hertz c.decibels, sound d.vibrations, cycle
d
Which occupational illness or disease compares closest to noise-induced hearing loss? Select the correct answer and then click DONE. a.Compound fracture b.A laceration requiring stitches c.Concussion d.Carpal Tunnel Syndrome
d
________ work by forming a seal inside the ear canal to prevent high levels of noise from reaching the cochlea, where ________ cover the entire ear. a.Earmuffs, earplugs b.Mufflers, earplugs c.Sound absorbers, plugs d.Earplugs, earmuffs
d