Question

WBV is most likely to occur among people who:

	A.	drive transport vehicles.
	B.	use hand-held power tools.
	C.	exert their hands and arms continuously.
	D.	take breaks in cold environments.
	E.	All of these are correct.

Workers who have potential exposure to polycyclic aromatic hydrocarbons include:

	A.	coal distillers.
	B.	shale oil workers.
	C.	cotton mule spinners.
	D.	wax pressmen.
	E.	All of these are correct.

1. DDT is classified as which one of the following categories of chemical pesticides?

   	A.	Organochlorines
   	B.	Organophosphates
   	C.	Carbamates
   	D.	Pyrethroids
   	E.	None of these is correct

1.66 points   

QUESTION 41

1. Which of the following is an example of a severe adverse health outcome associated with exposure to solvents?

   	A.	Neurologic injuries
   	B.	Potential for carcinogenicity
   	C.	Hearing loss
   	D.	Adverse reproductive outcomes
   	E.	All of these are correct.

2. Read the following statement: “The combined effect of several exposures is greater than the sum of the individual effects.” This statement refers to a(n):

   	A.	dose-response effect.
   	B.	additive effect.
   	C.	antagonistic effect.
   	D.	synergistic effect.
   	E.	None of these is correct.

3. 1.66 points   

   QUESTION 38

4. A substance or agent that causes cancer in mammals, including humans, is a(n):

   	A.	asphyxiant.
   	B.	asthmagen.
   	C.	carcinogen.
   	D.	dermatopathic agent.
   	E.	immunological agent.

   QUESTION 33

5. The contributions of epidemiology to occupational health include:

   	A.	concern with populations.
   	B.	use of observational data.
   	C.	methodology for study designs.
   	D.	descriptive and analytic studies.
   	E.	All of these are correct.

6. 1.66 points   

   QUESTION 34

7. Examples of purely observational epidemiologic studies usually include all of the following except:

   	A.	experimental studies.
   	B.	cohort studies.
   	C.	counts.
   	D.	case series.
   	E.	cross-sectional studies.

8. 1.66 points   

   QUESTION 35

9. The limitations of occupational epidemiology include the fact that:

   	A.	accurate assessment of exposure is difficult.
   	B.	low-level chemical exposures that involve mixtures are challenging.
   	C.	long latency periods often occur between initial exposures and disease outcomes.
   	D.	the effects of exposures are often nonspecific.
   	E.	All of these are correct.

   QUESTION 29

10. The NIEHS is a part of the:

    	A.	NIH.
    	B.	CDC.
    	C.	US DOL.
    	D.	EPA.
    	E.	None of these is correct.

11. 1.66 points   

    QUESTION 30

12. Which of the following agencies is primarily responsible for enforcement of regulations that protect worker health and safety?

    	A.	ATSDR
    	B.	NIEHS
    	C.	OSHA
    	D.	EPA
    	E.	NIOSH

13. Which types of conditions can affect workers in developing countries?

    	A.	Hazards associated with primary and extractive activities
    	B.	Building collapse
    	C.	Fires in factories
    	D.	Stampeding workers
    	E.	All of these are correct

14. 1.66 points   

    QUESTION 26

15. The FECA (1916):

    	A.	affected wages and hours of workers.
    	B.	expanded the 1908 law to include all civilian employees in the United States.
    	C.	provided compensation for lost wages.
    	D.	provided survivors’ benefits.
    	E.	provided compensation for lost wages and provided survivors’ benefits.

    Public health is part of occupational health because of all of the following except:

    	A.	conditions of work affect so many people.
    	B.	conditions that occur in the work environment can affect the larger community.
    	C.	one of the concerns of public health is health disparities among workers.
    	D.	the workplace is ideal for introducing health promotion activities.
    	E.	profits and productivity should take precedence over workplace hazards.

Answer 1

A, Drive transport vehicles
Whole-body vibration occurs where the body vibrating when we sitting, standing or recumbent on a vibrating surface. Activities like driving trucks, bus, tractor, etc can make the whole body vibration.
a, Coal distillers
A person working with coal and coal products have a high risk of exposures to polycyclic aromatic hydrocarbons(PAHs)
a, Organochlorines
DDT is an organochlorine insecticide mainly to control malaria, useful on crops for less persistent insecticides
Question 41
e, All of these are correct
solvents affect the central nervous system, damage the kidney and liver, reproductive hazards and carcinogens.
b, addictive effect
The effort when two or more substances used a combination of total effects the same as the sum of the individual effects.
Question 38
c, carcinogen
It is a chemical causing cancer in humans and wild animals.

Answer 2

A, drive transport vehicles