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Captains Test 2016 > Hazmat > Flashcards

Flashcards in Hazmat Deck (137):
1

What are the four basic clues that can help you recognize the presence of hazardous material?

-the occupancy and location of a fixed facility

-placards, labels, and markings

-the shape and design of the containers involved

-shipping papers or facility documents

2

The _________ regulates not only the packaging and vehicles used in transportation, but also the type of labels and placards that must be attached to both containers and vessels.

Department of Transportation

3

What are DOT placards?

-Diamond shaped sign (10 ¾ inches on each side) that generally must be affixed on each side and each end of vehicles carrying hazardous materials.-generally indicate the primary hazards or the most dangerous property associated with the material being transported

4

What is the DOT 4 digit identification number?

-id number that must appear in the center (can replace class name for bulk shipments) or beside placard.

-cannot replace class name for radioactive, explosives, or on the dangerous placard

5

What is a subsidiary placard?

-Placard used to indicate the secondary hazards of cargo

-required for shipments that are dangerous when wet or inhalation hazard but have different primary hazard

-no 4 digit id number used

-permitted but not required

6

Which categories of materials must always be placarded with their primary hazard placards regardless of the amount being transported?

Table 1 Materials:Explosives 1.2, 1.2, 1.3 Poison Gas Dangerous When Wet PoisonRadioactive

7

Table 2 materials must be placarded for bulk shipments of _______ lbs of that material. The dangerous placard can be used if a shipment contains non-bulk packages of 2 or more Table 2 materials if the total amount of each class of materials is less than ________ lbs loaded at one location.

-1000lbs -500lbs

8

What are DOT labels?

-4 inch diamonds affixed to non-bulk packages of hazardous materials; required for the same materials placards are required for

-labels aren’t limited to primary hazard (must be labeled for each hazard class)

-label affixed near package closure, next to each other, and next to material name

9

DOT background color Orange

Explosive

10

DOT background color Red

Flammable/combustible

11

DOT background color Red with white band in the center

Dangerous

12

DOT background color Green

Nonflammable gas

13

DOT background color white over red

Spontaneously combustible

 

*The clown wearing a white shirt and read pants spontaneously does his combustible trick

14

DOT background color white

Poisonous

15

DOT background color white with vertical red stripes

Flammable solid

 

*The white and red striped wallpaper is flammable (solid)

16

DOT background color yellow

Oxidizer

17

DOT background color white over yellow

Radioactive

 

*the white sign turned yellow on the bottom because of the radiation

18

DOT background color white over black

corrosive

19

DOT background color blue

Dangerous when wet

20

DOT background color black stripes over white

Miscellaneous hazardous material

21

DOT Bursting Ball symbol

Explosive

22

DOT Flame Symbol

Flammable

23

DOW W with a slash through it symbol

Dangerous when wet

24

DOT Wheat shaft with X thru it symbol

Keep away from food

25

DOT skull and crossbones symbol

Poisonous

26

DOT circle with flame symbol

Oxidizing material/organic peroxide

27

DOT Cylinder symbol

Nonflammable gas

28

DOT Trefoil (propeller) symbol

Radioactive material

 

*Propellers are radioative

 

 

29

DOT test tube with hand/metal symbol

Corrosive material

 

*test tubes are corrosive to your hands

30

DOT biohazard symbol

Infectious substance

 

*biohazards have infections

31

What does the term residue indicate?

That a container has been emptied but a harmful residue may still exist. (Residue placard only required on rail cars)

32

The _________ hazard class numbers must appear in the bottom of the diamond on both placards and numbers. They are not found on subsidiary placards.

United nations

33

Hazard class 1 indicates

explosives

34

Hazard class 2 indicates

Gases

35

Hazard class 3 indicates

Flammable/combustible liquids

36

Hazard class 4 indicates

Flammable solid/dangerous when wet/spontaneously combustible

37

Hazard class 5 indicates

Oxidizers/organic peroxides

38

Hazard class 6 indicates

Poisonous/infectious

39

Hazard class 7 indicates

Radioactive

40

Hazard class 8 indicates

Corrosive

41

Hazard class 9 indicates

ORMS other regulated materials

42

Identification Number

4 digit id number assigned to a hazardous material, placed either in the center of the placard or next to it

43

What is the NFPA 704 marking system?

-National fire protection agency marking system for fixed sites (not used in transportation), not federally regulated.-Uses a diamond divided into color coded quadrants

44

Describe the NFPA 704 Diamond

Left quadrant: Health Hazard (blue)Top: Flammability (red)Right: reactivity (yellow)Bottom: Special hazards (white)*0-4/no risk-greatest risk

45

Describe the EPA labeling requirements

-Regulates labeling of agricultural chemicals and pesticides -must have name, manufacturer, and product number, active ingredients and warning

46

__________ requires that containers of hazardous chemicals in workplaces be labeled or tagged with the name of the hazardous chemical and appropriate warning hazard.

-OSHA Occupational Safety and health Administration

47

What are tank car initials?

-Also known as reporting marks-used to id tank cars/indicates ownership-numbers stenciled to the left on both sides of the car and on both ends

48

The _______ and ________ of containers used in transportation and storage may indicate when hazardous materials are present.

Shape and design

49

Both bulk and non-bulk containers are used to transport hazardous materials. Bulk containers hold the hazardous material without an __________ form of containment.

Intermediate

50

What are the max capacities for bulk containers?

-119 gallons/450 liters for containers of liquid-882 lbs for solids-water capacity greater than 1000 lbs for gas*non bulk containers are everything with less

51

What is the cross section?

The tanks shape as it appears from behind, either circular or elliptical

52

Tank ends are called _______ and are an indication of internal pressure.

Heads

53

Products carried in tanks with distinctively rounded heads are usually under _______ pressure.

High

54

Products carried in tanks with flat heads are under _________ pressure.

No/low

55

Many tanks are compartmented and each compartment is considered __________ and each may carry a different class of material.

A separate tank

56

What are pressure cargo tanks?

-Tanks that transport gases that have been liquefied through compression and the contents must remain under pressure to maintain their liquid state.

-have rounded heads and circular cross section

-top 2/3 or entire tank is reflective and or painted white

-carry propane, butane, chlorine, anhydrous ammonia,

57

Describe a low pressure cargo tank

-circular cross section

-flat head

-may slant noticeably downward toward the unloading piping located either at the center or the rear tank

-may have rollover protection/catwalk

-carry flammable or combustible liquids, mild corrosives and poisons

58

What is a catwalk?

-Rollover protection extending from the front of the tank to the back of the tank-usually indicates that the tank has more than one manhole assembly and is compartmentalized

59

What is a non pressure cargo tank?

-elliptical cross sections and flat heads-usually compartmented (# of discharge valves underneath indicate # of compartments)-typically carry gasoline or fuel

60

Describe the corrosive liquid cargo tank.

-same basic configuration of low pressure cargo tank-circular cross section-flat heads-often smaller in diameter (due to weight)-often have visible stiffening rings running vertically around the tank for added strength

61

Describe the cryogenic liquid cargo tank

-specially designed to carry gasses that have been liquefied thru temperature reduction-circular cross sections-rounded heads-have fittings cabinet-some evaporation will occur as the material is slowly warmed by outside temperature (common to observe vapor discharge from relief valve)

62

Describe Tube Trailers

-carry 2-20 long thin cylinders permanently mounted on semi trailer-tubes 9-48 inches-carry gas under pressure; don’t carry liquefied gases

63

Describe dry bulk commodity carriers

-have large sloping V-shaped unloading compartments located at bottom of trailer

-rear mounted air compressor

-carry dry materials such as fertilizer, oxidizers, and plastics

64

The specific ________________ in a tank car determines how the tank will be constructed, as well as its size, fittings, linings, and other features.

Type of materials to be carried

65

Who are often the best source of information when a rail incident occurs?

Railroad personnel

66

Most tank cars carry ________________.

Only a single commodity.

67

What is a head shield?

-Feature that is added to pressure tank cars transporting hazardous materials.

-protect heads of cars from puncture by the coupling mechanism

68

Describe pressure tank cars

-Top loading

-pressures ranging from 100-600 psig

-capacity 4000-45000

-fittings located inside protective housing mounted on the manway cover plate at the top center of the tank

69

Describe Non pressure tank cars

-transport materials at vapor pressures below 25 psig at 105-115 F

-capacity 4000-45000

-distinguishable from pressure tank cars with the visible manway cover and fittings at the top of the tank

-can have up to 6 compartments

70

Describe Corrosive Liquid tank Cars

-resemble most other non pressure tank cars

-some painted with a wide band of corrosion resistant paint running vertically around the tank car at the manway

71

Describe Cryogenic tank Cars

-carry low pressure extremely cold refrigerated liquids (minus 30 F and below)

-tank within a tank style

-space between filled within insulation; kept under vacuum; protects from ambient temps for 30 days

-common to see venting

-do not apply water to valve area; may freeze/block valve

72

Describe High Pressure Tube Cars

-40 foot, box type, open frame cars

-visible cluster of 30 noninsulated steel cylinders permanently attached to car

-pressures are 300-5000 psig

73

Describe Covered Hopper Cars

-rail cars designed to carry dry commodities

-has two or more cone shaped structures on the bottom

74

Describe Ton Containers

-cylindrical with rounded heads

-180-320 gallons

-transport gases

75

Describe Tank Containers

-single metal tank mounted inside a sturdy metal supporting frame

-intermodal (rail, highway, water)

76

Describe Supporting Frame

Box type: encloses tank in a cagelike framework

Beam type: uses frame structures only at the ends of the tanks

77

Describe non-pressure tank containers

-aka intermodal or IM portable tanks

-generally transport liquid and solid materials

-comprise over 90% of the total # of tank containers.

78

Describe pressure tank containers

-less common in transport

-transport gases liquefied under pressure

79

Pipeline transportation

-used to carry liquid petroleum products, natural and manufactured gas

80

Documents for fixed facilities include ____________.

-used to carry liquid petroleum products, natural and manufactured gas

81

What is an MSDS

Material Safety data Sheet

-provides info about physical and chemical properties of material, hazards associated, basic response directions.

82

What are the available reference books?

DOT Emergency response Guidebook

NIOSH Pocket Guide to Hazardous Materials

83

What are the disadvantages of the DOT emergency response guidebook?

-general info

-evacuation table good for only 30 min

-recommended actions inappropriate in some instances

84

Using your senses (other than vision) to detect a hazardous material is _____________.

Unsafe and unacceptable

85

What are the three states of matter?

Solid, Liquid, Gas

86

Substances can change from one state to another as changes occur in ________ or ________, or both. A change in a materials state is likely to affect the degree of _________ posed by the material.

-temperature -pressure -hazard

87

A ___________ is a substance that retains a definite size and shape under normal conditions.

Solid

88

The temperature at which a solid melts and becomes a liquid is known as the ____________.

-melting point

89

When solids change directly to gas, the process is known as ____________.

-sublimation

90

_________ have a specific volume but no specific shape.

-liquids

91

The temperature at which a liquid freezes.

Freezing point

92

The temperature at which a liquid changes to a gas.

Boiling point

93

The boiling point of a liquid is related to its ___________, which is a measure of the ability to evaporate (change from liquid to gas).

-Vapor Pressure

94

A liquid in a gas state.

A vapor

95

The ______ the vapor pressure the more likely a liquid is to evaporate.

Higher

96

As temperature increases, the vapor pressure of a liquid ____________.

-increases

97

If the temperature is high enough, the vapor pressure rises until it equals __________ pressure. At this point the liquid boils and becomes a vapor.

-atmospheric

98

Flammable liquids with ______ vapor pressures are generally more dangerous than those with ___________ vapor pressures.

-high -low

99

The temperature at which a liquid generates enough vapors to create an ignitable mixture near the surface of the liquid.

Flash Point

100

The concentration of a flammable vapor or gas in air.

Explosive Limit

101

Below the lower explosive limit (LEL) the mixture is too ______.

Lean

102

Above the upper explosive limit (UEL) the mixture is too ______.

Rich

103

A substance that expands or is compressed readily and has no independent shape or volume.

Gas

104

When a gas is cooled below its boiling point it condenses to become a______________.

Liquid

105

To evaluate the hazard posed by a gas, you must know or estimate its _______________.

Concentration in air.

106

_______________ is a concept used to measure the weight of solids and liquids in comparison to an equal volume of water. It indicates whether it will sink or float in water.

Specific gravity

107

Water has a specific gravity of _____.

1

108

A specific gravity greater than 1 will _____. A specific gravity less than 1 will ______.

-sink-float

109

Solubility

The degree to which one substances mixes with another. (solution)

110

Solute vs Solvent

Solute: substance present in lesser amount

Solvent: substance present in greater amount

111

If a solute mixes completely with a solvent, it is said to be ________ with that solvent.

Miscible

112

Water miscible

Liquid is infinitely soluble in water

113

Vapor density

Concept used to measure the weight of gases in comparison to an equal volume of air. (Air vapor density of 1)

114

Substances with vapor densities greater than one ___ in air while those less than one ______ in air.

-sink -rise

115

The mass that is assigned to atoms or molecules that make up a chemical.

Molecular weight

116

Vapors and gases with molecular weights greater than __________ tend to sink in air. Vapors of flammable liquids also tend to sink in air.

-29

117

___________ result when two or more substances combine to form new chemicals and energy is either absorbed or released.

Chemical reactions

118

The rate at which chemical reactions occur depends on a number of factors (4)…

Temperature: increased temp speeds reaction

Concentration: increasing the concentrations of reacting materials increases rate

Pressure: increasing pressures increases speed

Catalysts Present

119

What is a catalyst

A substance that increases the rate of chemical reactions but is not changed by it.

120

_______ materials are those that react when exposed to water

Water reactive

121

____________ materials are those that react when exposed to air.

Air reactive

122

What scales are used to measure air?

-Centigrade/Celsius

-Fahrenheit

-Kelvin

123

Scale at which water boils at 100 and freezes at 0.

Centigrade/CelsiusF=(Cx 9/5) + 32

124

Scale at which water boils at 212 and freezes at 32.

FahrenheitC=(F-32) x 5/9

125

Temperature at which a material starts to burn without a flame or other ignition source present. At this temperature gases or vapors are consumed in fire as rapidly as they are formed, and the material continues self-sustained combustion.

Ignition temperature (autoignition temperature)

126

The scale indicating the acidity or alkalinity.

PH scale; 0-14; 7 is neutral

127

Values lower than 7 indicate increasing _______ while those higher than 7 indicate increasing _______ on the ph scale.

-acidity -alkalinity

128

The ph scale is a _______ scale.

Logarithmic

129

When dealing with acids and bases, it is important to obtain information about the ________ of the acid or base which indicates the percentage of the material in water.

Concentration

130

________ involves the property of certain elements to emit energy that can damage living organisms.

Radiation

131

________ particles can travel only a short distance from their source (4 inches) and can be stopped by a thin film of water or sheet of paper.

Alpha

132

_____ particles can travel about 30 feet and can penetrate about 1-11/2 inches of wood and thru 1/10 or ½ inch of human skin.

Beta

133

Alpha and Beta particles cause the most harm if they are ______.

Ingested or swallowed.

134

_____ are only stopped with dense shielding, such as several inches of lead or several feet of concrete.

Gamma Rays

135

___________ can be used to minimize exposure to radiation.

TimeDistanceShielding

136

_____________ is the most effective means of reducing exposure.

Distance

137

By doubling the distance from the source, an individual can _______ the amount of radiation exposure.

-quarter