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Hazwoper > Final > Flashcards

Final Flashcards

1
Q

What is the hazardous waste title?

A

HAZWOPER 29 CFR 1910.120

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2
Q

What does section a in the hazwoper regulations cover?

A

Who is covered, How they are covered, Key definitions

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3
Q

What does sections b-o in the hazwoper regulations cover?

A

The regulation address employer responsibilities at uncontrolled hazardous waste sites.

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4
Q

What does section p in the hazwoper regulations cover?

A

Treatment, Storage and Disposal (TSD) Facilities

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5
Q

What does section q in the hazwoper regulations cover?

A

Emergency Response to Hazardous Substance Releases

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6
Q

What does section e in the hazwoper regulations cover?

A

Hazwoper training

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7
Q

What types of workers are covered in hazwoper regulations?

A

General Site Workers, Occasional site workers, Workers at fully characterized sites, Supervisors

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8
Q

What are the 7 primary clues to hazardous materials identification?

A

Papers (MSDS, Bill of Lading, Shipping Papers…), Container shapes/types, Placards/labels, Detection Equipment, Markings/colors, Location, Senses

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9
Q

What is the regulation tag for the hazardous material diamond?

A

NFPA 704 M

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10
Q

What are the 4 sections on a NFPA hazardous material diamond?

A

Blue stands for health, Red stands for Flammability, Yellow stands for reactivity, and White is for special hazards (ex. ox=oxidizing agent & W=water reactive). All diamonds (but white) uses a 0-4 numbering system where 0=no hazard and 4 is very dangerous/very unstable

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11
Q

What are the parts of a DOT placard?

A

Background color, hazard symbol, diamond shape, hazard class number, and 4 digit ID number

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12
Q

What are the 6 DOT placard colors and what do they mean?

A

Orange=explosive, yellow=oxidizer, Red=flammable, white=health hazard, blue=water reactive, green=nonflammable gas

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13
Q

What is a class 1 hazardous material

A

Explosives

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14
Q

What is a class 2 hazardous material

A

compressed gases

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15
Q

What is a class 3 hazardous material

A

flammable liquids

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16
Q

What is a class 4 hazardous material

A

flammable solids

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17
Q

What is a class 5 hazardous material

A

oxidizers

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18
Q

What is a class 6 hazardous material

A

toxic materials

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19
Q

What is a class 7 hazardous material

A

radioactive materials

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20
Q

What is a class 8 hazardous material

A

corrosives

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21
Q

What is a class 9 hazardous material

A

miscellaneous

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22
Q

What does LEL mean?

A

Lower Explosive Limit: lowest percentage of fuel in air that will support combustion

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23
Q

What does UEL mean?

A

Upper Explosive Limit: highest percentage of fuel in air that will support combustion

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24
Q

What is toxicology?

A

the study of the harmful effects of chemicals and other physical phenomena on biological systems and how certain substances cause these disruptions

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25
Q

What is an Exposure limit?

A

The levels of exposure established by studies that determine “safe” levels to enable workers to maintain a margin of safety when working in contaminated atmospheres.

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26
Q

What is a LD50?

A

Lethal Dose 50% or median lethal dose: quantity of chemical estimated to be fatal to 50% of organisms under stated conditions of the test

27
Q

What is a threshold dose?

A

a does below which no effect or response is observed

28
Q

What does NOEL mean?

A

No observed effect level: highest dose level of a chemical that causes no observable adverse effect in the test organism

29
Q

What does LOEL mean?

A

lowest observed effect level: lowest dose level of a chemical that causes an observable adverse effect in the test organism

30
Q

What is the difference between a toxic and a highly toxic material?

A

A toxic material has a LD50 less than 500 mg/kg or LC50 below 2000 ppm. A highly toxic material has a LD50 less than 50 mg/kg or LC50 below 200 ppm.

31
Q

What does TWA stand for?

A

Time weighted average

32
Q

What does PELs stand for?

A

Permissible Exposure Limits

33
Q

What does STEL stand for?

A

Short Term Exposure Limits

34
Q

What does IDLH stand for?

A

Immediately Dangerous to Life and Health

35
Q

What does TLVs stand for?

A

Threshold Limit Values

36
Q

What does BEIs stand for?

A

Biological Exposure Indices?

37
Q

What are the 5 factors to consider when someone is exposed?

A

Concentration of the chemical, Duration of exposure, Uptake Rate, Chemical interactions- additive, synergistic,
antagonistic, Route of Entry

38
Q

What are the 4 routes of entry?

A

Inhalation, Absorption, Ingestion, Injection

39
Q

What is the difference between Acute and chronic exposure?

A

Acute exposure is a brief period of contact with a substance (like a few seconds or hours). Chronic exposure is continuous or repeated contact with a substance over months or years.

40
Q

What is the difference between a local and systemic effect?

A

A local effect occurs at the site of contact with a substance. A systemic effect occurs in other parts of the body after a substance has been absorbed and distributed

41
Q

What is PPE?

A

Personal Protective Equipment: Equipment designed to protect employees from serious workplace injuries or illnesses resulting from contact with chemical, radiological, physical, electrical, mechanical, or other workplace hazards.

42
Q

What are the 3 CPC failure mechanisms?

A

Degradation, penetration, and permeation

43
Q

What is the difference between penetration and permeation?

A

Penetration is the transport of materials through openings in
the suit. Permeation is the passage of a chemical through intact material at the molecular level

44
Q

When should Level A PPE be worn?

A

Level A protection should be worn when the highest level of respiratory, skin, eye and mucous membrane protection is needed.

45
Q

What PPE should be worn for Level A?

A

SCBA, fully encapsulating chemical suit, inner and outer gloves, steel toe chemical boots

46
Q

When should Level B PPE be worn?

A

Level B protection should be selected when the highest level of respiratory protection is needed, but a lesser level of skin and eye
protection.

47
Q

What PPE should be worn for Level B?

A

SCBA, Chemical resistant clothing (chemical suit, overalls, etc.), inner and outer gloves, and steel toe chemical boots

48
Q

When should Level C PPE be worn?

A

Level C protection should be selected when the type of airborne substance is known, concentration measured, criteria for using air­-purifying respirators met, and skin and eye exposure is unlikely. Periodic monitoring of the air must be performed.

49
Q

What should be worn for Level C PPE?

A

Gas-mask, Chemical resistant clothing (chemical suit, overalls, etc.), inner and outer gloves, and steel toe chemical boots

50
Q

When should Level D PPE be worn?

A

It should not be worn on any site where respiratory or skin hazards exist.

51
Q

What should be worn for Level D PPE?

A

primarily a work uniform and is used for nuisance contamination
only, It requires only coveralls and safety shoes/boots

52
Q

What are the two categories of hazard assessment?

A

-health hazards (carcinogens, toxins, etc.)
-physical hazards (flammable, explosives)

53
Q

What is a hazard assessment?

A

the process of determining the risk of a particular material and what protective action should be taken

54
Q

What is the hierarchy of controls from most to least effective

A

Elimination, substitution, engineering controls, administrative controls, and PPE

55
Q

What are the major groups of respiratory hazards?

A

-Particulates (dusts, fumes, mists)
-Gases and vapors
-Combinations of particulates and gases
-Oxygen deficient atmospheres
-High or low temperature areas

56
Q

What are the types of respiratory hazards?

A

-Dusts, fumes, mists, gases, and vapors

57
Q

What are dusts?

A

solid particles in the air created through operations such as grinding, sanding, or drilling

58
Q

What are fumes?

A

particulates create through the heating and cooling of solid materials (welding)

59
Q

What are mists?

A

suspended liquid droplets in the air (spraying)

60
Q

What are gases?

A

non-particulate forms of matter that move freely through the air (at ambient temps)

61
Q

What are vapors?

A

similar to gases but form when liquid evaporates and the liquid portion enters the air

62
Q

What is a normal percentage of oxygen and what is considered oxygen deficient?

A

20.9% and under 19.5%

63
Q

What are the 6 things that air monitoring is searching for?

A

-Oxygen deficient/enriched atmospheres
-combustible/explosive atmospheres
-toxic atmospheres
-corrosivity
-radioactive
-biological hazard

64
Q
A

Hazwoper (1 decks)

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