1. Which of the following is part of a level A suit?

a. Air-purifying Respirator

b. Totally-encapsulating Suit

c. Half Face Respirator

d. Negative Pressure Respirator

e. All of the above

f. Question is not applicable to my workplace and not relevant

2. The minimum distance to store an oxygen cylinder from a hydrogen cylinder if there is no barrier between them is:

a. 5 feet

b. 10 feet

c. 20 feet

d. 50 feet

e. None of the above

f. Question is not applicable to my workplace and not relevant

3. Odor threshold is:

a. The minimum concentration at which a chemical can be smelled by an average human

b. The maximum concentration at which a chemical can be smelled by an average human

c. The minimum concentration at which a chemical can be smelled by an average dog

d. The minimum concentration at which a chemical can be smelled by a flame ionization detector

e. The concentration that can be detected while wearing an air-purifying respirator

f. Question is not applicable to my workplace and not relevant

4. The protection factor of a Self-contained Breathing Apparatus is:

a. 10

b. 50

c. 2000

d. 10,000

e. None of the above

f. Question is not applicable to my workplace and not relevant

5. The term "Threshold Limit Value" is used by which organization?

a. The Occupational Safety & Health Administration (OSHA)

b. The National Institute of Occupational Safety & Health (NIOSH)

c. American Conference of Government Industrial Hygienists (ACGIH)

d. Mine Safety Health Administration (MSHA)

e. All of the above

f. Question is not applicable to my workplace and not relevant

6. Canister(s) that protect against organic vapors is/are:

a. Yellow

b. Green

c. Magenta

d. Magenta and green

e. All of the above

f. Question is not applicable to my workplace and not relevant

7. A chemical has a placard of 0 - 4 - 0 (0 blue, 4 red, 0 yellow).   This chemical has:

a. A high health hazard

b. A high flammability hazard

c. A high health and reactivity hazard

d. High toxicity

e. All of the above

f. Question is not applicable to my workplace and not relevant

8. A person is exposed to acetone for the following durations and concentrations: 2 hours @ 100 ppm, 3 hours @ 200 ppm, 1 hour @ 50 ppm, 2 hours @ 0 ppm

The Time Weighted Average exposure is:

a. 106.25 pp

b. 141.67 ppm

c. 43.75 ppm

d. 200 ppm

e. 350 ppm

f. Question is not applicable to my workplace and not relevant

9. According to Dupont®, the manufacturer of Tychem® 10000, a brand of chemical protective clothing, the breakthrough time of benzene is 5 minutes.   The following are true:

a. Benzene will diffuse through this suit in 5 minutes

b. Tychem® 10000 is an unacceptable chemical protective clothing for benzene workers

c. Tychem® 10000 may be acceptable for other chemicals

d. Benzene will be detected within the suit after 5 minutes of exposure

e. All of the above

f. Question is not applicable to my workplace and not relevant

10. When wearing a P100 (formerly HEPA) air purifying respirator, what does NIOSH recommend for changeout frequency of canisters?

a. When breakthrough is detected

b. When breathing becomes difficult

c. When breathing becomes impossible

d. Every 8 hours of exposure regardless of concentration

e. All of the above

f. Question is not applicable to my workplace and not relevant

11. Which of the following is not regulated by the Hazardous Waste Operations and Emergency Response rule (29 CFR 1910.120):

a. Emergency Response activities

b. EPA-required cleanup of a hazardous waste facility

c. Treatment, storage and disposal facility operations

d. A homeowner disposing of Mercury-containing fluorescent bulbs

e. None of the above

f. Question is not applicable to my workplace and not relevant

12. A person whose primary responsibility is aggressive spill containment (i.e., entering the contamination site) must be trained at what minimum level:

a. Awareness Level

b. Operations Level

c. Hazardous Materials Technician

d. Hazardous Materials Specialist

e. All of the above

f. Question is not applicable to my workplace and not relevant

13. Which of the following is not a preventative for heat stress:

a. Acclimatize workers for 5 or more days before a hot assignment

b. Drink copious quantities of alcohol and caffeine

c. Monitor workers for pulse and blood pressure during hot assignments

d. Provide sufficient rest and "cool down"

e. All of the above

f. Question is not applicable to my workplace and not relevant

14. Which parameter(s) must be monitored during initial site entry:

a. Lower explosivity levels (LEL)

b. Oxygen

c. Concentrations of chemicals known or suspected of being present

d. Radioactivity

e. All of the above

f. Question is not applicable to my workplace and not relevant

15. Which of the following is/are a chemical asphyxiant?

a. Methane

b. Cyanide

c. Carbon dioxide

d. Nitrogen

e. All of the above

f. Question is not applicable to my workplace and not relevant

16. Decontamination would take place in which work zone(s)?

a. Support Zone

b. Contamination Reduction Zone

c. Exclusion

d. Hot Zone

e. Decontamination is permitted in any zone

f. Question is not applicable to my workplace and not relevant

17. What is the primary reason why is it unacceptable to use an air-purifying respirator when working with methanol?

a. The odor threshold of methanol is too low to be detected

b. The odor threshold of methanol is too high to be detected

c. The breakthrough time of methanol is very fast through a canister

d. Methanol is a known carcinogen

e. All of the above

f. Question is not applicable to my workplace and not relevant

18. If the ambient concentration of a vapor is 100 ppm.  What is the breathing concentration when wearing a full-face air-purifying respirator with the correct canisters?

a. 0 ppm

b. 2 ppm

c. 10 ppm

d. 50 ppm

e. None of the above

f. Question is not applicable to my workplace and not relevant

19. A permit-required confined space has which of the following characteristic(s)?

a. Contains a recognized safety hazard

b. Has engulfment potential

c. Has entrapment potential

d. Has the potential to contain a hazardous atmosphere

e. Any of the above

f. Question is not applicable to my workplace and not relevant

20. A hazardous atmosphere can have which of the following characteristic(s)?

a. Toxic

b. Explosive

c. Oxygen deficient

d. Reactive

e. Any of the above

f. Question is not applicable to my workplace and not relevant

21. A chemical is present that is a known skin irritant (according to the Material Safety Data Sheet).  The ambient (outside) concentration exceeds the permissible exposure limit.  Which of the following is the most appropriate personal protective equipment?

a. A

b. B

c. C

d. D

e. None of the above

f. Question is not applicable to my workplace and not relevant

22. The noise action level that necessitates a hearing conservation program is:

a. 65 dB

b. 75 dB

c. 85 dB

d. 100 dB

e. All of the above

f. Question is not applicable to my workplace and not relevant

23. An example(s) of a common simple asphyxiant is:

a. Cyanide

b. Carbon Dioxide (CO₂)

c. Oxygen

d. Saliva

e. All of the above

f. Question is not applicable to my workplace and not relevant

24. An employee must receive Hazard Communication training when he/she is exposed to which of the following?

a. Any listed carcinogen

b. Any chemical listed in the ACGIH Threshold Limit Values for Chemical Substances and Physical Agents and

Biological Exposure Indices handbook

c. Any chemical listed in 29 CFR 1910 table 1910.1000 (Subpart Z)

d. Any defined hazard

e. Any of the above

f. Question is not applicable to my workplace and not relevant

25. When must site characterization for a site-specific health and safety plan occur?

a. Before initial entry only

b. After initial entry only

c. Ongoing only

d. Before initial entry and ongoing after intial entry

e. None of the above

f. Question is not applicable to my workplace and not relevant

26. The 8 - hour time weighted average permissible exposure limit for toluene is 200 ppm. If the ambient concentration of toluene in the air is 300 ppm, what respirator(s) will provide sufficient protection from vapors?

a. Half-face air-purifying respirator with the correct canisters

b. Full-face air-purifying respirator with the correct canisters

c. Self-contained Breathing Apparatus

d. Air line Supplied Air

e. All of the above

f. Question is not applicable to my workplace and not relevant

27. How long may a worker work in an environment that has a noise level of 103 dB?

a. 8 hours

b. 4 hours

c. 1 ˝ hours

d. 1 hour

e. None of the above

f. Question is not applicable to my workplace and not relevant

28. Entry into an exclusion zone always requires:

a. Buddy system

b. Internal Communication

c. External Communication

d. Site preparation

e. All of the above

f. Question is not applicable to my workplace and not relevant

29. Personal protective considerations are always made:

a. After engineering controls have reduced the ambient concentrations

b. Before engineering controls have reduced the ambient concentrations

c. Without regard to engineering controls

d. Based on cost-effectiveness

e. All of the above

f. Question is not applicable to my workplace and not relevant

30. Gasoline with a flashpoint of -160° F will have a UN class of:

a. 2.1

b. 3.1

c. 3.2

d. 4.2

e. 0 - 4 - 0

f. Question is not applicable to my workplace and not relevant

31. A groundwater well sampler at a hazardous waste site who samples the landfill once / month must have how many hours of off-site and on-site training, respectively?

a. 40 / 24

b. 40 / 8

c. 24 / 24

d. 24 / 8

e. None of the above

f. Question is not applicable to my workplace and not relevant

32. What must you always do after donning a respirator?

a. Inspect it

b. Clean it

c. Test it for fit by covering the exhalation valve and exhaling and covering the canisters and inhaling

d. Perform a qualitative or quantitative fit test

e. All of the above

f. Question is not applicable to my workplace and not relevant

33. A chemical's material safety data sheet states that it has a vapor density of 2.0.  You know that this chemical will:

a. Sink in water

b. Float in water

c. Sink in air

d. Rise in air

e. Be dangerous

f. Question is not applicable to my workplace and not relevant

34. A corrosivity characteristic for hazardous wastes is:

a. pH is equal to or less than 2 or equal to or greater than 12.5 or a liquid that is corrosive to steel

b. pH is between 2 and 12.5

c. pH is 12.5 or greater only

d. A liquid can dissolve steel

e. None of the above

f. Question is not applicable to my workplace and not relevant

35. Which of the following is a potential ignition source?

a. Heat

b. Static Electricity

c. Electrical Arc

d. Steel contacting steel

e. All of the above

f. Question is not applicable to my workplace and not relevant

36. How can inhalation of contaminants be prevented?

a. Engineering Controls

b. Respiratory Protective Equipment

c. Administrative Controls

d. By monitoring the ambient concentrations

e. All of the above

f. Question is not applicable to my workplace and not relevant

37. An environment that is oxygen enriched:

a. Is at a  reduced risk of explosion

b. Has > 23.5% oxygen

c. Poses a significant risk of oxygen toxicity

d. Has > 19.5 % oxygen

e. All of the above

f. Question is not applicable to my workplace and not relevant

38. For which of the following chemicals is it unacceptable to use an air-purifying respirator?

a. Vinyl Chloride

b. Hydrogen Sulfide

c. Methanol

d. Methyl Chloride

e. All of the above

f. Question is not applicable to my workplace and not relevant

39. A material safety data sheet says that a chemical is  a nephrotoxin.  Which organ should be specifically monitored during medical monitoring?

a. Kidney

b. Lungs

c. Heart

d. Liver

e. None of the above

f. Question is not applicable to my workplace and not relevant

40. Respirators should be cleaned:

a. Using special disposable respirator wipes after light use

b. By immersion in a detergent solution, followed by a 2% bleach solution, followed by a hot water rinse after heavy

use

c. By the person using that respirator

d. And inspected upon each use

e. All of the above

f. Question is not applicable to my workplace and not relevant

41. The best decontamination solution for a strong acid is:

a. A weak acid

b. A strong acid

c. A weak base

d. A strong base

e. A strong base followed by a weak acid

f. Question is not applicable to my workplace and not relevant

42. A milli-rem is:

a. A measure of radiation quantitiy

b. A measure of the damage radiation can provide

c. The name of former President Bush's dog

d. Measured with a Geiger counter

e. None of the above

f. Question is not applicable to my workplace and not relevant

43. Which emergency responder level would be expected to look up a chemical, if the placard on a truck was visible (from a safe distance)?

a. All levels

b. All levels except Awareness

c. Operations, Hazardous Materials Technician, Hazardous Materials Specialist, and Incident Commander levels

d. Hazardous Materials Technician, Hazardous Materials Specialist, and Incident Commander levels

e. None of the above

f. Question is not applicable to my workplace and not relevant

44. Which of the following are not regulated at hazardous waste sites by OSHA?

a. Foot protection

b. Lighting

c. Number of portable toilets

d. Number of showers

e. All of the above are regulated

f. Question is not applicable to my workplace and not relevant

45. A worker is using an air chisel in a steady noise level of 130 dB.  How many impacts from his air chisel is (s)he permitted to hear per day?

a. 10

b. 100

c. 1000

d. 10,000

e. 100,000

f. Question is not applicable to my workplace and not relevant

46. If a confined space (e.g., a wastewater lift station) has a potentially explosive environment (LEL = 15%), but has no potential for engulfment, has no potential for entrapment, or other recognized safety hazard and ventilation alone can make the space safe, which of the following are not required by OSHA?

a. Oxygen meter

b. LEL meter

c. Tripod and rescue equipment

d. Ventilation equipment

e. None of the above are required

f. Question is not applicable to my workplace and not relevant

47. An explosive chemical has a permissible exposure limit of 1000 ppm, a lower explosivity limit of 21,000 ppm, but no listed IDLH level.   The assumed IDLH level would be:

a. 1000 ppm

b. 10,000 ppm

c. 20,000 ppm

d. 21,000 ppm

e. None of the above

f. Question is not applicable to my workplace and not relevant

48. Information on the IDLH levels can be obtained from:

a. The Coast Guard Chemical Hazard Response Information System (CHRIS)

b. The NIOSH Pocket Guide to Chemical Hazards

c. The USDOT Emergency Response Guidebook

d. a & b

e. All of the above

f. Question is not applicable to my workplace and not relevant

49. A workplace has an ambient concentration of 25 ppm of a vapor.   The employer is told by OSHA that the ACGIH TLV for this chemical is 10 ppm, the NIOSH REL is 20, and the OSHA PEL is 50.  The employer refuses to reduce the ambient concentration or provide respiratory protection.  The employer is probably in violation of the:

a. OSHA's General Duty Clause

b. ACGIH's regulatory standards

c. NIOSH's regulatory standards

d. OSHA's 29 CFR 1910.1000 standards

e. All of the above

f. Question is not applicable to my workplace and not relevant

50. A workplace contains a  mixture of xylene and toluene (two similar volatile organic compounds) with the following compositions: 50 ppm xylene and 150 ppm toluene.  The permissible exposure limits of xylene and toluene are 100 ppm and 200 ppm, respectively.  Can a worker work in this environment for 8 hours without a respirator and stay within OSHA's permissible exposure limits?

a. Yes

b. No

c. Question is not applicable to my workplace and not relevant

Explain your answer: