The Action Level!® Quiz - Volume 13 No 5 - May 2016

Provide FULL NAME and EMAIL information below, then answer the questions and click "Submit".

A Method for Evaluating Aerosol Leakage through the Interface between Protective Suits and Full Face Respirators

Kristina Arnoldsson, Signar Danielsson and Marianne Thunéll

1. The principal threat associated with a “dirty” bomb corresponds to which of the following choices?


2. A rectangular shaped respirator provides a better seal between hood and respirator at the sides of the head than a pear-shaped respirator. True or False?

Hexavalent Chromium and Isocyanate Exposures during Military Aircraft Painting under Crossflow Ventilation

James S. Bennett, David A. Marlow, Fariba Nourian, James Breay and Duane Hammond

3. In a crossflow aircraft painting hangar with cross-sectional area 139 square meters, the average velocity measured across the exhaust filter with area 50 square meters is 250 fpm. What is the velocity that should be compared to OSHA 1910.94, Table G-10 to determine compliance?



4. In aircraft painting operations, an 8-hour TWA for hexavalent chromium of 15 micrograms per cubic meter complies with the OSHA PEL of 5 micrograms per cubic meter if a properly fitting full-face air-purifying respirator is used. True or False?

Prevalence of Permanent Threshold Shifts in the United States Air Force Hearing Conservation Program by Career Field, 2005-2011

Laurel Lloyd Soderlund, Elizabeth A. McKenna, Katie Tastad and Marika Paul

5. The Department of Defense implements audiometric monitoring programs when personnel are occupationally exposed to:



6. Audiogram exclusions for this study included all of the following, except:



Long Duration Measurements of Whole-body Vibration Exposures Associated with Surface Coal Mining Equipment Compared to Previous Short-duration Measurements

Robin Burgess-Limerick and Danielle Lynas

7. Operators of dozers and off-road haul trucks in use at surface coal mines are frequently exposed to vertical whole-body vibration levels that lie within or above the Health Guidance Caution Zone defined by ISO2631.1. True or False?

8. The fourth-power nature of the Vibration Dose Value (VDV) measure of whole-body vibration gives less emphasis to high peak values than the root-mean-square measure. True or False?

Mass and Number Size Distributions of Emitted Particulates at Five Important Operation Units in a Hazardous Industrial Waste Incineration Plant

Chi-Chi Lin, Hsiao-Lin Huang and Wen-Yuan Hsiao

9. The number size distributions indicated that the size of aerosols were mostly greater than 1.5 μm whereas the mass size distributions were distributed in the sub micrometer range. True or False?

10. Present work and related studies did not document which of the following particulate emissions from waste incineration:




1. Answer Key:
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Investigation of the Flow-Field in the Upper Respiratory System When Wearing N95 Filtering Facepiece Respirator

Xiaotie Zhang, Hui Li, Shengnan Shen and Mang Cai

11. The nasal vestibule bears a high flow velocity and more wall shear stress than any other area in the airway. True or False?

12. Which one of the following imaging modalities was used?



Predicting Future Protection of Respirator Users: Statistical Approaches and Practical Implications

Chengcheng Hu, Philip Harber and Jing Su

13. An objective not associated with this work is:



14. Fitted models failed to demonstrate correlation or provide estimated distribution of future fit test results based on past results for an individual worker. True or False?

Effects of a Powered Air-purifying Respirator Intervention on Indium Exposure Reduction and Indium Related Biomarkers among ITO Sputter Target Manufacturing Workers

Hung-Hsin Liu, Chang-Yuh Chen, Cheng-Hang Lan, Cheng-Ping Chang and Chiung-Yu Peng

15. The purpose of this study would be best described as investigating:



16. Which of the following control methods is actually least preferred?





Deadline for answers is May 31, 2016.

Answers will be available online on June 10, 2016.