Air quality monitoring 3.2.1.4 Flashcards Preview

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Flashcards in Air quality monitoring 3.2.1.4 Deck (16)
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1
Q

Hydrogen cyanide exposure symptoms are similar to that of what?

A

CO

2
Q

Low level exposure symptoms to HCN/CO include what?

A

headache
nausea
fatigue
dizzy

3
Q

High level exposure symptoms to HCN/CO include what?

A

respiratory problems
unresponsiveness
cardiac arrest

4
Q

Post structure fire, when should personnel switch to a second set of gear?

A

ASAP

5
Q

What is the minimum gas monitoring required at structure fires?

A

HCN

CO

6
Q

Which two incidents do not require atmospheric monitoring?

A

vehicle fires outside of structures

burning odor with no visible smoke (light ballast for example)

7
Q

All confined space incidents shall start with what prior to team members making entry?

A

air monitoring

8
Q

What type of gas monitor shall be used for confined space atmospheric monitoring?

A

four gas with pickup tube and pump

9
Q

HCN levels must be below what to operate without SCBA?

A

4.7ppm

10
Q

CO levels must be below what to operate with out SCBA?

A

35ppm

11
Q

Who completes gas monitor calibration?

A

engineer

12
Q

What day of the month are gas monitors calibrated?

A

15th

13
Q

What shall be done to meters that read “out of range” after an exposure?

A

bump tested

14
Q

What are the three indicators for determining if a person has been exposed to HCN?

A

exposure to fire/smoke in enclosed area
soot around mouth/nose
AMS

15
Q

What is the half life of HCN?

A

one hour

16
Q

What is the respiratory rate progression for HCN exposure?

A

fast then slow