Question 1 : In the United States, research has documented socioeconomic and racial/ethnic disparities in residential exposures to _______________.

air pollution

hazardous waste sites

industrial facilities

all of the above

Question 2 : In the context of ionizing radiation, the term relative biological effectiveness describes _______________, per unit of radiation energy absorbed by the body.

the relative damage caused by different types of ionizing radiation

the relative impact of acute versus chronic exposure to ionizing radiation

the relative risk of birth defects caused by exposure early versus late in pregnancy

Question 3 : Which of the following occupations is not particularly associated with high exposure to asbestos?

Insulation Workers

Oil Workers

Shipbuilding Workers

Question 4 : Which of the following diseases is a sentinel illness for asbestos exposure?

Fibrosis

Lung cancer

Mesothelioma

Question 5 : The half-life of a radioactive element is the time it takes for half the atoms in a sample to _______________.

become non-radioactive

lose an electron

undergo radioactive decay

Question 6 : Which of the following is not a syndrome associated with acute high-level exposure to ionizing radiation?

Bone marrow syndrome

Central nervous system syndrome

Gastrointestinal syndrome

Respiratory syndrome

Question 7 : Occupational exposure to cotton dust causes _______________.

byssinosis

lacrimosis

tinnitus

Question 8 : Which of the following types of radiation is not ionizing?

Beta radiation

Gamma radiation

Infrared radiation

Question 9 : Which type of radiation is most penetrating, if a person is exposed from a source outside the body?

Alpha radiation

Beta radiation

Gamma radiation

Question 10 : Nanoparticles are in the same size range as __________________ particulates.

fine

respirable

ultrafine

Question 11 : Asbestos is a _______________ hazard.

biological

chemical

physical

Question 12  : Which of the following is not a documented health effect of noise in the workplace?

Cognitive failures

Coronary heart disease

Decrease in immune system function

Question 13 : Today, with asbestos exposures in the United States largely controlled, deaths from malignant melanoma in the country are _______________.

declining

holding steady

rising

Question 14 : Radioactive decay occurs when an atom of a radioactive isotope _______________.

Absorbs a burst of energy

Ejects part of its nucleus

undergoes fusion of the particles in its nucleus

Question 15 : In the United States, research on burdens of BPA, PFCs, and PBDEs in people's bodies or in their microenvironments has shown:

consistently higher burdens in lower-socioeconomic-status and/or minority populations.

consistently lower burdens in lower-socioeconomic-status and/or minority populations.

variation in demographic patterns in body burdens.