Question 1 In the United States, research has documented socioeconomic and racial/ethnic disparities in residential exposures to _______________. [removed] air pollution [removed] hazardous waste sites [removed] industrial facilities [removed] all of the above 1 points Question 2 In the context of ionizing radiation, the term relative biological effectiveness describes _______________, per unit of radiation energy absorbed by the body. [removed] the relative damage caused by different types of ionizing radiation [removed] the relative impact of acute versus chronic exposure to ionizing radiation [removed] the relative risk of birth defects caused by exposure early versus late in pregnancy 1 points Question 3 Which of the following occupations is not particularly associated with high exposure to asbestos? [removed] Insulation Workers [removed] Oil Workers [removed] Shipbuilding Workers 1 points Question 4 Which of the following diseases is a sentinel illness for asbestos exposure? [removed] Fibrosis [removed] Lung cancer [removed] Mesothelioma 1 points Question 5 The half-life of a radioactive element is the time it takes for half the atoms in a sample to _______________. [removed] become non-radioactive [removed] lose an electron [removed] undergo radioactive decay 1 points Question 6 Which of the following is not a syndrome associated with acute high-level exposure to ionizing radiation? [removed] Bone marrow syndrome [removed] Central nervous system syndrome [removed] Gastrointestinal syndrome [removed] Respiratory syndrome 1 points Question 7 Occupational exposure to cotton dust causes _______________. [removed] byssinosis [removed] lacrimosis [removed] tinnitus 1 points Question 8 Which of the following types of radiation is not ionizing? [removed] Beta radiation [removed] Gamma radiation [removed] Infrared radiation 1 points Question 9 Which type of radiation is most penetrating, if a person is exposed from a source outside the body? [removed] Alpha radiation [removed] Beta radiation [removed] Gamma radiation 1 points Question 10 Nanoparticles are in the same size range as __________________ particulates. [removed] fine [removed] respirable [removed] ultrafine 1 points Question 11 Asbestos is a _______________ hazard. [removed] biological [removed] chemical [removed] physical 1 points Question 12 Which of the following is not a documented health effect of noise in the workplace? [removed] Cognitive failures [removed] Coronary heart disease [removed] Decrease in immune system function 1 points Question 13 Today, with asbestos exposures in the United States largely controlled, deaths from malignant melanoma in the country are _______________. [removed] declining [removed] holding steady [removed] rising 1 points Question 14 Radioactive decay occurs when an atom of a radioactive isotope _______________. [removed] Absorbs a burst of energy [removed] Ejects part of its nucleus [removed] undergoes fusion of the particles in its nucleus 1 points Question 15 In the United States, research on burdens of BPA, PFCs, and PBDEs in people’s bodies or in their microenvironments has shown: [removed] consistently higher burdens in lower-socioeconomic-status and/or minority populations. [removed] consistently lower burdens in lower-socioeconomic-status and/or minority populations. [removed] variation in demographic patterns in body burdens.
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