AAO-HNSF Certificate Program for Otolaryngology Personnel

35. An increase from 10 dB to 20dB HL, is in effect, doubling the intensity.

a. True b. False

36. The longer wavelengths of lower frequency sounds of vowels move more easily around obstructions than do the shorter wavelengths of higher frequencies contained in many of the consanants of speech.

a. True b. False

37. Vowels have higher frequency sound waves than consanants.

a. True b. False

38. 0 dB represents:

a. A just audible sound b. No sound c. A soft rustle of leaves d. A whisper at 10 feet

Basic Causes of Hearing Loss and Audiometric Patterns (Questions: 39-53)

39. Which of the following is not a cause of obstruction of the external auditory canal?

a. Cerumen b. Exostosis c. Otosclerosis d. Treacher Collins Syndrome

40. Otolsclerosis can be associated with all of the following symptoms except:

a. Hearing loss b. Tinnitus c. Dizziness d. Paracusis willisii

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