Noise reduction - Study guides, Class notes & Summaries

MRSO prep exam IEC DB/DBA limits for MRI - correct answer 140 DB 99 DBA parameters to reduce noise in MRI - correct answer -thicker slices -larger FOV -smaller matrix -parallel imaging -reducing bandwidth (increasing TE) -active noise reduction -Low SAR RF mode (increase in echo spacing)-thicker slices MRI sequence that produces the most and least noise in MRI - correct answer Most noise EPI/DWI least noise spin echo sequence an increase in slew rate and gradient amplitude ca...

CAOHC Exam Questions with Answers Latest Update (100% Solved) NIHL (Noise Induced Hearing Loss) - ANSWER 22 - 28 million US workers exposed to harmful levels of noise. Manufacturing accounts for most . Noise exposure - ANSWER major cause of tinnitus. Tinnitus - ANSWER is usually a high pitched sound that person hears, others usually cannot hear. Major warning sign of NIHL. What are the auditory effects of noise (NIHL)? - ANSWER - hearing loss, high freq, usually bilateral, 1st seen at 3kH...

The technical rescue disciplines identified in NFPA 1006 can be separated into two general categories which are? correct answers Land-based and water-based rescues What are the different PPE types and selections correct answers Head protection (helmets must conform to NFPA 1951) Face and eye protection hearing protection outerwear hand protection foot protection harnesses Head protection must conform to what NFPA? correct answers 1951 For oxyacetylene or gasoline fueled cutting...

Carbon Filters - Answer-Mitgating air pollution including ozone and VOC content. Food Storage Volume Capacity - Answer-20 liters per occupant, but no more than 7,000 liters of combined space. Mechanical Noise Criteria (NC) Requirement - Answer-Open Office Spaces and Lobbies - max NC of 40 Closed Office Spaces - max NC of 35 Conference Rooms - max NC of 30 Daylighting Fenestration - Answer-Feature that addresses both window size and transmittance for working and learning spaces and uni...

Audiology Health Technician Exam Questions with Answers Latest (100% Correct) What is the primary purpose of CAOHC? - ANSWER It is to implement resources and guidance to facilitate the practice of hearing loss prevention through standardized training and credentialing of OHCs. CAOHC council is comprised of ____ professional organizations. - ANSWER 9 professional organizations CAOHC provides training for - ANSWER OHCs, CDs, and PSs CAOHC Certification period is for ____years. - ANSWER 5 ye...

traumatic brain injury (TBI) An insult to the brain not of degenerative or congenital nature but caused by external physical force May produce a diminished or altered state of consciousness Results in an impairment in cognitive abilities or physical functioning traumatic brain injury (TBI) epidemiology young males at highest risk chronic traumatic encephalopathy (CTE) many hits to the head mild TBI (mTBI) concussion most common form of brain injury mild TBI (mTBI) symptoms headaches...

Overcoat - Answer-1 Emulsion - Answer-2 Adhesive Layer - Answer-3 Base - Answer-4 Intensification Factor (IF) - Answer-Because screens are used to reduce patient dose, one characteristic is the magnitude of dose reduction. This property is called the ____________ and is a measure of the speed of the screen. Screen Speed - Answer-__________ is a relative number that describes how efficiently x-rays are converted into light. Increases. - Answer-As x-ray tube potential is increase...

CAOHC Exam Questions with Answers Latest Update (100% Solved) NIHL (Noise Induced Hearing Loss) - ANSWER 22 - 28 million US workers exposed to harmful levels of noise. Manufacturing accounts for most . Noise exposure - ANSWER major cause of tinnitus. Tinnitus - ANSWER is usually a high pitched sound that person hears, others usually cannot hear. Major warning sign of NIHL. What are the auditory effects of noise (NIHL)? - ANSWER - hearing loss, high freq, usually bilateral, 1st seen at 3kH...

Audiology Health Technician Exam Questions with Correct Answers Latest (100% Solved) What is the primary purpose of CAOHC? - ANSWER It is to implement resources and guidance to facilitate the practice of hearing loss prevention through standardized training and credentialing of OHCs. CAOHC council is comprised of ____ professional organizations. - ANSWER 9 professional organizations CAOHC provides training for - ANSWER OHCs, CDs, and PSs CAOHC Certification period is for ____years. - ANSW...

DoD Hearing Technician: Chapters 1-12 - Review Questions and Answers Which occupational sector accounts for the highest incidence of noise -induced hearing loss: a. Transportation b. Construction c. Mining d. Manufacturing d Noise exposures are considered likely to be harmful if shouting is required in order to communicate to a person _____feet away. a. 4 b. 3 c. 2 d. 5 b The primary role of CAOHC is: a. Advocate for comprehensive programs tha...