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Old Officer study material > SPLOPS module 6 > Flashcards

SPLOPS module 6 Flashcards

0
Q

Most detection read-out is done ?

A

in real time

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1
Q

Monitoring equipment helps you determine what 3 things?

A

appropriate PPE
safe areas and evacuation zones
control tactics

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2
Q

what is the most important initial check on an instrument?

A

the battery check

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3
Q

What is relative response?

A

when an instrument reading is higher or lower than the actual concentration of vapors or gases present.

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4
Q

The time it takes the instrument to obtain the sample and produce readings is called what?

A

Response time.

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5
Q

UL and FL markings mean what?

A

intrinsically safe for class 1 division 1 groups ABCD.

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6
Q

Explosion proof labels mean?

A

reactions are contained within enclosures.

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7
Q

What is the sampling procedure while using a sample line?

A

1 to 2 seconds per ft of hose.

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8
Q

Definition of accuracy?

A

average of all measurements fall within an acceptable predetermined interval from the true value.

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9
Q

Definition of precision?

A

grouping of separate readings around a calculated average.

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10
Q

what are the three different scales for a CGI?

A

PPM
% LEL
% gas

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11
Q

CGI’s with IR capability can read what?

A

CO2 and CH3 levels in concentrations above 5,000PPM.

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12
Q

An appropriately set CGI low level alarm is set at what percent of the cal gas?

A

10%

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13
Q

What gas is required for proper functioning of a CGI since it requires combustion of the vapor or gas its detecting?

A

Oxygen

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14
Q

ambient air for calibrating and 02 sensor should be what %?

A

20.9%

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15
Q

oxygen enriched atmospheres are what %?

A

greater than 23.5%

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16
Q

Detector tubes detect what?

A

only if a chemical is present

17
Q

Although detector tubes are calibrated to 1 material it may respond how?

A

to other materials that have similar structure and reactivity.

18
Q

How should detector tubes be stored?

A

left in the their original box.

19
Q

The aspiration pump for detector tubes must be calibrated how often?

A

on a quarterly basis.

20
Q

A negative response for a detection tube may be more informative than a positive one why?

A

Since in can exclude number of potential chemical contaminants.

21
Q

Another name for radiation survey instruments commonly found in fire departments today is called what?

A

Ludlam meter.

22
Q

Gamma radiation is measured in what?

A

mR/hr or uR/hr - roentgens.

23
Q

alpha and beta radiation is read in what?

A

CPM- counts per minute

24
Q

Transport packaging containing radioactive material is read how?

A

millirem/ hr @ 1 meter from the surface of the box.

25
Q

Primary disadvantage of a dosimeter is?

A

gives measurements of radiation that ALREADY has been received.

26
Q

PID’s are designed to detect what?

A

organic vapors or gases in low PPM range.

27
Q

PID’s determine what?

A

if there are high or low concentrations of s chemical present.

28
Q

Definition of ionization potential?

A

the energy required to move the OUTTER MOST electron from the atom or nucleus.

29
Q

How is ionization potential (IP) expressed?

A

Electron volts.

30
Q

PID’s readouts in regards to IP are in what measure?

A

PPM.

31
Q

PID readings of 5 PPM or more of an unknown gas or vapor mean what?

A

Indicate need for protective clothing and breathing apparatus.

32
Q

Advantage of FID vs PID?

A

FID’s are not restricted by IP because it burns the actual material allowing higher PPM and allow identification of the gas or vapor.

33
Q

FID’s measure reading are in what?

A

PPM

34
Q

what gas or vapor must be present in order for the FID to work?

A

oxygen.

35
Q

what 2 modes do FID’s work in?

A

Survey and gas chromatography.

36
Q

What is survey mode with a FID?

A

translates organic vapors into concentration of PPM.

37
Q

What is gas chromatography mode?

A

the sample can be identified by seperating it into GC columns and the chemicals retention time.

38
Q

What is retention time?

A

the amount of time a substance remains within the column of the GC .

39
Q

In order to use the FID’s GCs function what has to be known?

A

A general idea what gases or vapors may be present.

40
Q

What are the simplest kits in order to test for hazards?

A

Test papers and or kits.

41
Q

What are the basic rules for detection devices? (7)

A
  1. prioritize monitoring- measure 02 levels first.
  2. select to appropriate instrument
  3. absence of evidence is evidence of absence.
  4. never assume only 1 hazard is present.
  5. use one instrument to confirm another
  6. interpret readings in more than 1 way
  7. establish action levels.- (unknowns have a 25% LEL.)

Old Officer study material (30 decks)

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