Fire Origin Ch2

Question 1

1) Concentrations of air contaminants during fire investigation activities typically ____ occupational exposure limits

Answer 1

a. Exceed

Question 2

2) _____ protection is a primary concern for first responders because _____ is arguably the greatest threat to their health after a fire has be extinguished.

Answer 2

a. Respiratory, inhalation of toxic materials

Question 3

3) In areas where debris will be disturbed and dust created, a minimum of protection such as an ____ and _____ should be worn.

Answer 3

a. Air-purifying respirator, eye protection

Question 4

4) Common particles such as ____ are considered cancer risks in large quantities, and can also be absorbed through the ____

Answer 4

a. Carbon (soot), eye

Question 5

5) Particulate air filters such as ____ and/or _____ should be the primary filtering media

Answer 5

a. High efficiency filter (HEPA), organic vapor/acid gas cartridges

Question 6

6) The organic vapor/acid gas cartridge is effective for approximately ___ to ___ hours of continuous use. The indicator that it is no longer serviceable is the ability to _____ or ____

Answer 6

a. 8-10, taste or smell

Question 7

7) T/F the organic vapor/acid gas cartridge is a one use item

Answer 7

T

Question 8

8) T/F work areas should be well-ventilated by natural and/or mechanical means

Answer 8

T

Question 9

9) ____ are versatile can be worn over other clothing while providing limited protection, uniformity and comfort

Answer 9

a. Coveralls

Question 10

10) ____ gloves worn under strong durable ____ gloves provide a good combination of protection.

Answer 10

a. Latex, leather

Question 11

11) Boots should be water resistant and provide adequate ____, ____, and _____ protection

Answer 11

a. Toe, mid-sole, ankle

Question 12

12) Biohazard- _____ caused by _____ and _____ pose significant threats

Answer 12

a. AIDS, HIV, Hepatitis B

Question 13

13) First responders must always be aware of ___ exits from any location on the fireground

Answer 13

2

Question 14

14) ____ can cause collapse of structural elements and even ____ are capable of toppling fire damaged chimneys

Answer 14

a. Winds, moderate winds

Question 15

15) Responders should remember that ___ can be visible or hidden

Answer 15

a. Chimneys

Question 16

16) Applying intensely concentrated lighting to the exterior of a building causes a ____ problem

Answer 16

a. Vision adjustment

Question 17

17) When interior lighting is necessary, it is usually best provided by ____

Answer 17

a. Portable lights

Question 18

18) Even daylight operations may require a ___ for efficiency and safety

Answer 18

a. Flashlight

Question 19

19) Site safety assessments shall be conducted on ___ regardless of size

Answer 19

a. All scenes

Question 20

20) Resources such as ___ and ____ may be necessary to remove unstable walls or perform ____ operations.

Answer 20

a. Heavy equipment, construction crews, shoring

Question 21

21) If solutions are neither _____ nor ____ , the scene may have to be secured and abandoned until resources become available

Answer 21

a. Economically feasible, practical

Question 22

22) Site safety is a ____ process

Answer 22

a. Continuous

Question 23

23) ….. investigators may become overexposed to ____, ____, and _____

Answer 23

a. Irritants, chemical asphyxiants, and carcinogens

Question 24

24) In some instances where there is a risk of exposure to hazardous materials a ___ and more ____ level of personal protection may be required

Answer 24

a. Higher, specialized

Question 25

25) The decision to downgrade from SCBA to lower level of respiratory protection must take into consideration hazards that may not ____ on the monitoring and detection equipment, as well as any ___ or ____ created when debris is disturbed.

Answer 25

a. Register, dust, particulates

Question 26

26) The length of time that filters are useful depends on the ___ and ___ of the first responder, _____ in the environment, and ____ in the environment

Answer 26

a. Age, health, time spent, amount of particulate

Question 27

27) The following are some hazards that can be detected using available monitoring and detection equipment:

Answer 27

a. Oxygen levels
b. Sulfides
c. Hydrogen cyanide
d. Radiation

Question 28

28) Devices that can detect these hazards include:

Answer 28

a. Colorimetric tubes
b. Combustible gas detectors
c. Multigas detectors- ( including oxygen, carbon monoxide, hydrogen sulfide)
d. Single gas electrochemical sensor detectors (for example ____)
i. Hydrogen cyanide
e. Radiation detectors

Question 29

29) Hazards to the eyes such as ___ particles, ____, _____ and ____, are commonly encountered at fire investigation scenes.

Answer 29

a. Dust, sharp objects, chemical splashes, toxins

Question 30

30) When an investigator has been wearing respiratory protection, ____ should be taken during breaks to ensure readings are not elevated.

Answer 30

a. Vital signs

Question 31

31) There is always a threat of ____ at a fire scene

Answer 31

a. Rekindle

Question 32

32) Always consider the following factors before entering a structures that have experienced a fire or explosion:
a. ______- Delay entry into any damaged structures until the specific type of construction is determined…..

Answer 32

i. Building construction

Question 33

32) Always consider the following factors before entering a structures that have experienced a fire or explosion:
b. ______- Building contents such as paper, carpet and furniture that absorb water will increase weight and contribute to the likelihood of collapse

Answer 33

i. Content Load

Question 34

32) Always consider the following factors before entering a structures that have experienced a fire or explosion:
c. ______ building materials

Answer 34

i. Lightweight

Question 35

32) Always consider the following factors before entering a structures that have experienced a fire or explosion:
d. Length of _____

Answer 35

i. Burning time

Question 36

32) Always consider the following factors before entering a structures that have experienced a fire or explosion:
e. Accumulating ____ and ____

Answer 36

i. Water, ice

Question 37

32) Always consider the following factors before entering a structures that have experienced a fire or explosion:
f. Lightweight ____ and ____ members

Answer 37

i. Trusses, structural

Question 38

32) Always consider the following factors before entering a structures that have experienced a fire or explosion:
g. ______- freestanding chimneys and any signs of building braces or supports such as corner angle braces, “star supports”, and shoring should be noted and avoided

Answer 38

i. Special conditions

Question 39

32) Always consider the following factors before entering a structures that have experienced a fire or explosion:
h. Exposed ____

Answer 39

i. Steel

Question 40

33) When working in a hazardous atmosphere it is important that flashlights be _____

Answer 40

a. Intrinsically safe

Question 41

34) _____ and distraught individuals at the scene could present a danger to responders if they are allowed unrestricted access to the scene

Answer 41

a. Uncontrolled animals

Question 42

35) Another major concern is the collection of water in basements or low spaces in or near the incident site which can pose a _______

Answer 42

a. Drowning hazard

Question 43

36) (sewage/drainage) Aside from the possibility of collapse and drowning ,the added concern of _____ and ____ must be considered. The local sewer utility and the local ______ must be notified when situations of this type are found

Answer 43

a. Contamination, disease, public health officer

Question 44

37) NFPA ___ national fuel gas code

Answer 44

54

Question 45

38) It is also recommended that a __________ (___) be used with portable electric equipment at the scene

Answer 45

a. Ground fault circuit interrupter (GCFI)

Question 46

39) Helmets should meet the specifications set forth in NFPA-_____

Answer 46

1971