Chapter 11: Air Monitoring and Sampling

Question 1

Which of the following statements regarding air monitoring and sampling is MOST accurate? (512)
A. Few devices are able to detect all hazardous materials.
B. Responders should only use one type of instrument for
monitoring.
C. Air monitoring and sampling may be performed by AwarenessLevel personnel.
D. Air monitoring and sampling can assist in determining
perimeters and the scope of the incident.

Answer 1

Air monitoring and sampling can assist in determining

perimeters and the scope of the incident.

Question 2

Which of the following is an air monitoring and sampling
responsibility of responders? (513)
A. Repair devices as necessary
B. Service devices at the scene
C. Analyze samples in a laboratory setting
D. Interpret the data provided by detection devices

Answer 2

Interpret the data provided by detection devices

Question 3

Air monitoring and sampling must include: (513)
A. search warrants.
B. chain of custody.
C. crime scene preservation.
D. analysis of hazardous materials at the scene.

Answer 3

chain of custody.

Question 4

Which of the following is used for expressing the concentration of a gas or vapor in the air? (514)
A. Parts per million (ppm)
B. Grams per kilogram (g/kg)
C. Milligrams per kilogram (mg/kg)
D. Milligrams per cubic meter (mg/m3)

Answer 4

Parts per million (ppm)

Question 5

Which of the following is usually used to express extremely low concentrations of unusually toxic gases or vapors? (514)
A. Parts per billion (ppb)
B. Milligrams per liter (mg/L)
C. Milligrams per kilogram (mg/kg)
D. Micrograms of material per liter of air (µg/L)

Answer 5

Parts per billion (ppb)

Question 6

Which of the following is a unit for expressing concentrations of chemicals in water? (514)
A. Parts per million (ppm)
B. Milligrams per liter (mg/L)
C. Micrograms per liter (µg/L)
D. Grams per kilogram (g/kg)

Answer 6

Milligrams per liter (mg/L)

Question 7

Concentrations that are high enough to kill or cause serious injury or illness are expressed in terms of: (514)
A. threshold limit value (TLV®).
B. permissible exposure limit (PEL).
C. short-term exposure limit (STEL).
D. immediately dangerous to life or health (IDLH).

Answer 7

immediately dangerous to life or health (IDLH).

Question 8

Which of the following dictate detection and monitoring strategies? (518)
A. Hazards
B. Oxygen levels
C. Training levels of responders
D. Standard order of procedures (SOPs)

Answer 8

Hazards

Question 9

A monitoring plan should consider which of the following questions? (519)
A. What equipment is available?
B. What type of hazard is present?
C. Why is monitoring being conducted?
D. Which readings are most important?

Answer 9

Why is monitoring being conducted?

Question 10

Monitoring should be performed: (519)
A. only by the Incident Commander.
B. only by Operations-Level responders.
C. under the direction of the Safety Officer.
D. under the direction of a haz mat technician.

Answer 10

under the direction of a haz mat technician.

Question 11

What should be done with damaged devices? (519)
A. Taken out of service
B. Used only as back-up
C. Repaired at the scene
D. Used only sporadically

Answer 11

Taken out of service

Question 12

Which of the following is a safety precaution while monitoring? (519)
A. Move quickly.
B. Always work alone.
C. Approach the hazard area from downwind.
D. Monitor at ground level, waist level, and above the head.

Answer 12

Monitor at ground level, waist level, and above the head.

Question 13

Which of the following is a consideration when selecting detection and monitoring devices? (522-523)
A. Usability
B. Instrument reaction time
C. Fire department’s mission
D. Quantity of hazards involved

Answer 13

Instrument reaction time

Question 14

Most instruments need to be calibrated: (523)
A. prior to use.
B. every two months.
C. every six months.
D. at least once a year

Answer 14

prior to use.

Question 15

Which property of corrosives is the degree to which the chemical is diluted? (524)
A. pH
B. Strength
C. Intensity
D. Concentration

Answer 15

Concentration

Question 16

Which detection equipment is designed to change colour when in contact with corrosive materials? (526)
A. pH paper
B. Fluoride test paper
C. Combustible gas indicators
D. Colorimetric indicator tubes

Answer 16

pH paper

Question 17

Which detection equipment is used to protect responders in situations where the hazardous materials are unknown?
(528)
A. pH paper
B. Oxygen meters
C. Fluoride test paper
D. Photoionization detections

Answer 17

Fluoride test paper

Question 18

Oxygen levels below \_\_\_ are considered deficient. (528)
A. 19.5%
B. 20.9%
C. 21.5%
D. 22.9%

Answer 18

19.5%

Question 19

Combustible gas indicators (CGIs) measure the amount of: (530)
A. organic peroxides.
B. combustible gases in the air.
C. organic and inorganic gases or vapors.
D. flammable vapours and gases in the atmosphere.

Answer 19

flammable vapours and gases in the atmosphere.

Question 20

CGIs will sound an alarm at \_\_\_ of the lower explosive limit (LEL) of gas. (530)
A. 10%
B. 15%
C. 20%
D. 25%

Answer 20

10%

Question 21

Which of the following are designed to detect a single chemical and are prone to degrade over time? (535)
A. Raman spectrometers
B. Photoionization detectors
C. Chemical specific detectors
D. Colorimetric indicator tubes

Answer 21

Chemical specific detectors

Question 22

Which of the following use an ultraviolet lamp to ionize samples of gaseous materials? (536)
A. Raman spectrometers
B. Photoionization detectors
C. Flame ionization detectors
D. Colorimetric indicator tubes

Answer 22

Photoionization detectors

Question 23

Which of the following are useful for confirming the presence of a suspected material, but not very useful for determining or detecting unidentified products? (538)
A. Raman spectrometers
B. Flame ionization detectors
C. Chemical specific detectors
D. Colorimetric indicator tubes

Answer 23

Colorimetric indicator tubes

Question 24

Which of the following are used when small concentrations of contaminants are suspected? (540)
A. Raman spectrometers
B. Photoionization detectors
C. Flame ionization detectors
D. Colorimetric indicator tubes

Answer 24

Flame ionization detectors

Question 25

``` Which of the following make identification by comparing unique signatures to a library of known signatures? (541) A. Raman spectrometers B. Flame ionization detectors C. Chemical specific detectors D. Colorimetric indicator tubes ```

Answer 25

Raman spectrometers

Question 26

``` Oxidizers can be detected by: (542) A. pH paper. B. oxygen monitors. C. photoionization detectors. D. potassium iodide starch paper ```

Answer 26

potassium iodide starch paper

Question 27

``` What is a limitation of oxidizer detectors? (542) A. High error rate B. Will NOT detect inorganic compounds C. Responder must be in close proximity D. Too much oxygen can damage sensors ```

Answer 27

Responder must be in close proximity

Question 28

``` Roentgen applies only to ___ radiation. (543) A. beta B. alpha C. gamma D. neutron ```

Answer 28

gamma

Question 29

``` Which unit is used to measure the amount of radiation energy absorbed by a material? (543) A. Roentgen (R) B. Radiation absorbed dose (rad) C. Radiation absorbed in man (ram) D. Roentgen equivalent in man (rem) ```

Answer 29

Radiation absorbed dose (rad)

Question 30

``` Radiation cannot be: (543) A. felt. B. tested. C. measured. D. contained. ```

Answer 30

felt.

Question 31

Which of the following is NOT a group of radiation tools? (544) A. Instruments detecting contamination B. Instruments measuring oxygen levels C. Instruments measuring radiation exposure D. Instruments used for dose monitoring and personal dosimetry

Answer 31

Instruments measuring oxygen levels

Question 32

``` Which of the following detectors uses regular ambient air as the detection gas? (545) A. GM detector B. Ion chamber C. Dosimetry device D. Scintillation detector ```

Answer 32

GM detector

Question 33

``` Which of the following detectors is most useful when detection of very small amounts of radiation is required? (545) A. GM detector B. Ion chamber C. Dosimetry device D. Scintillation detector ```

Answer 33

Scintillation detector

Question 34

``` Which of the following detectors is useful for keeping track of the wearer’s total accumulated radiation dose? (546) A. GM detector B. Ion chamber C. Dosimetry device D. Scintillation detector ```

Answer 34

Dosimetry device

Question 35

Which of the following statements regarding detection of reactives is MOST accurate? (547) A. There is no meter or device designed to detect reactive materials. B. Responders need to look for oxygen levels that cannot be accounted for. C. Responders can use infrared cameras to detect the presence of reactives. D. Chemical reactions of concern to emergency responders will emit extremely low temperatures.

Answer 35

There is no meter or device designed to detect reactive materials.

Question 36

``` Which of the following utilize various technologies to specifically detect chemical warfare agents? (547) A. Mass spectrometers B. Ion-mobility spectrometers C. Chemical agent monitors (CAMs) D. Gas chromatography (CG) detectors ```

Answer 36

Chemical agent monitors (CAMs)

Question 37

Which technology uses a highly sensitive microphone to listen to the sound made when a material absorbs infrared radiation? (548) A. Gas chromatography (CG) B. Thermoelectric conductivity C. Photoacoustic IR spectroscopy (PIRS) D. Surface acoustical wave (SAW) technology

Answer 37

Photoacoustic IR spectroscopy (PIRS)

Question 38

``` Which of the following are chemical analysis instruments used to separate and identify chemicals in a complex sample? (549) A. DNA fluoroscopy devices B. Wet chemistry testing kits C. Biological immunoassay indicators D. Gas chromatography (CG) detectors ```

Answer 38

Gas chromatography (CG) detectors

Question 39

Which of the following are used to detect nerve agents and blister agents? (550) A. Mass spectrometers B. Chemical agent monitors (CAMs) C. Surface acoustical wave devices (SAWs) D. Polymerase chain reaction devices (PCRs)

Answer 39

Surface acoustical wave devices (SAWs)