265 East 400 South Box 291 Raymond Alberta T0K 2S0 Tel: 403 752-4585 Fax: 403 752-3643 Email: safetyctr@abfarmsafety.com Website: abfarmsafety.com Rural Safety Sense Contest Quiz DVD development and contest prizes made available through the generous support of:
Rural Safety Sense DVD Series Quiz 1. Any source of sound sends vibrations or through the air. (two words) 2. What are the names of the bones in your middle ear? a. Anvil b. Stirrup c. Cochlea d. Hammer 3. Each cochlea has approximately microscopic hair cells. 4. How are the hair cells lining the cochlea damaged? a. Continued unprotected exposure to soft noises b. Continued unprotected exposure to moderately loud noises c. Sudden blasts of moderately loud noises d. Sudden blasts of extremely loud noises 5. Damage to the hair cells lining the cochlea leads to which is permanent and irreversible. (four words) Page 2 of 8
6. Match the following sounds to their decibel levels. Answers may be used only once i. Idling tractor ii. Rustling grass iii. Operating baler iv. ipod at half volume v. ipod at full volume vi. Normal conversation vii. Swine operation at feeding time a. 20dB 30dB b. 50dB 60dB c. 70dB 80dB d. 75dB 90dB e. 85dB 101dB f. 108dB 125dB g. 120dB 133dB 7. What are some signs of a threshold shift? a. a ringing sound b. a buzzing sound c. sounds are muffled d. speech is hard to understand 8. For every increase of db over 85 db, the allowable daily safe listening period is in. 9. When you feel you need to in order to be heard from 1 meter away, noise levels are probably above db. Page 3 of 8
10. What can you do to reduce your risk of hearing loss? a. Turn down the volume b. Wear hearing protection c. Limit or avoid loud noises d. Move away from loud noises 11. Personal music devices like ipods and mp3 players deliver sound into your auditory canal. 12. What are some characteristics of hearing protection that works best? a. Costly b. Convenient c. Comfortable d. Close at hand 13. True or False: All forms of hearing protection will be labeled with a noise reduction rating. Page 4 of 8
14. Match the type of hearing protection to the following characteristics. Answers may be used more than once. i. Also called canal caps ii. Filled with foam or liquid iii. Flexible tips on a lightweight band iv. Seal around the ears to block noise v. Commonly made of expandable foam vi. Flexible material preformed to fit ear a. Foam earplugs b. Pre-molded earplugs c. Semi-insert earplugs d. Earmuffs 15. If kept dry and clean, foam ear plugs can be used up to times. 16. If fitted correctly, expandable foam ear plugs reduce noise by approximately db. 17. Pre-molded ear plugs are ideal if you have a need to or protection occasionally. 18. If fitted correctly, pre-molded ear plugs reduce noise by approximately db. 19. What type of ear plugs provide less protection than other plugs or ear muffs and are not recommended for long-term wearing? Choose only one answer a. Pre-molded b. Semi-insert c. Hard foam d. Soft foam Page 5 of 8
20. Which of the following are characteristics of earmuffs? a. Earmuffs come in adult and children s sizes b. Earmuff cushions can be washed with warm soapy water c. Earmuffs worn correctly will reduce noise by approximately 50 db d. Glasses, hats and hair can interfere with the cushion seal around the ear 21. If you re going to be exposed to very loud noises, it is a good idea to wear ear and ear together. Page 6 of 8
Personal Review Since completing this module, what behaviours have you changed? 1. I have turned down the volume on my ipod or mp3 player. a. Yes b. No c. I do not listen to music with earbuds or earphones 2. I wear hearing protection when working with loud noises. a. Yes b. No c. I do not work with loud noises 3. I have made sure that hearing protection is stored close to wherever it may be needed. a. Yes b. No c. We do not have anything that makes loud noises 4. I have made sure that I am inserting foam or preformed ear plugs properly or that my earmuffs fit tightly a. Yes b. No c. I do not work with loud noises Page 7 of 8
5. I have shared safety information from this DVD module with the following: a. Parents b. Siblings c. Friends d. Co-workers e. Other f. I have not shared any information Page 8 of 8