Chapter 6 Questions Flashcards
What refers to a single exposure of a hazardous material over a relatively short period of time? A. acute exposure B. Secondary exposure C. primary exposure D. chronic exposure
A. Actue exposure
Which of the following is used for the detection of explosives, chemical warfare agents, and illicit drugs? A. Ion mobility spectrometry B. Gas chromatography (GC) C. Flame ionization detector (FID) D. Halogenated hydrocarbon meter
A. Ion mobility spectrometry
The effects of exposure to biological agents:
A. May not become apparent for several days
B. Are often subtle and difficult to detect
C. Are almost always immediate
D. Mimic exposure to other agents
A. May not become apparent for several days
What value indicates a neutral pH? A. 14 B. 10 C. 7 D. 0
C. 7
When should atmospheric oxygen levels be monitored during an incident? A. Every 30 minutes B. Continuously C. When incident objectives change D. Every 15 minutes
B. Continuously
Which term refers to an atmospheric condition of a substance that poses an immedite threat to the life and can cause irreversible or delayed health effects?
A. Life safety limit
B. Imminent physical health risk
C. Immediately dangerous. To life and health
D. Primary life and health risk
C. Immediately dangerous to life and health
Flammable gas sensors are intended for use:
A. Only in normal oxygen atmospheres
B. In oxygen-deficient atmospheres
C. In both oxygen-deficient and oxygen-enriched atmospheres
D. In ocygen-enriched atmospheres
A. Only in normal oxygen atmospheres
Which detection device is a tool used extensively to measure the presence and identiy of chemicals in the air, water, and soil? A. Flame ionization detector (FID) B. Photonization detector (PID) C. Gas chromatograph (GC) D. Halogenated hydrocarbon meter
C. Gas chromatograph (GC)
Which radiation detection instrument is useful for keeping track of the wearer’s total accumulated radiation dose? A. Dosimeter B. M8 detector C. Geiger-Mueller (GM) detector D. Scintillation detector
A. Dosimeter
The best way to protect against the hazards of toxic chemicals is to:
A. Maintain a distance of at least 10 ft (3 m) from chemicals
B. Prevent exposure
C. Wear one level higher PPE than required
D. Limit hazardous materials response calls
B. Prevent exposure
Which device renders infrared radiation as visible light? A. Thermal imager B. Dosimeter C. Photonization detector (PID) D. Geiger-Mueller (GM) detector
A. Thermal imager
The NIOSH definition of immediately dangerous to life and health (IDLH) states that the IDLH is the maximum concentration from which an unprotected person can expect to escape in a: A. 30-minute period of time B. 5-minute period of time C. 10-minute period of time D. 60-minute period of time
A. 30-minute period of time
The value provided by the american conference of governmental industrial hygienists (ACGIH) that is an occupational exposure value to which it is believed nearly all workers can be exposed day after day for a working lifetime without any ill effects is the:
A. Recommended exposure limit (REL)
B. Permissible exposure limit-ceiling (PEL-C)
C. Threshold limit value (TLV)
D. Permissible exposure limit (PEL)
C. Threshold limit value (TLV)
What refers to the amount of pathogen required to cuase an infection in the host?
A. Infectious dose (ID)
B. Roentgen equivalent in man (rem)
C. Threshold limit value (TLV)
D. Immediately dangerous to life and health dose
A. Infectious dose (ID)
Which analysis should not take place in the field and must be returned to the factor for calibration?
A. Fourier transform infrared (FT-IR) spectroscopy
B. Ion mobility spectrometry
C. Gamma-ray spectrometry
D. Surface acoustic wave
A. Fourier transform infrared (FT-IR) spectroscopy
What is the number of atoms in a quantity of radioactive material that is detected to have decayed in one minute? A. Roentgen equivalent in man (rem) B. Counts per minute (cpm) C. Sievert D. Radiation absorbed dose (rad)
B. Counts per minute (cpm)
Which instrument involves measuring the concentration of hydrogen ions? A. PH meter B. Metal oxide sensor C. Electrochemical cell D. reactive cell
A. PH meter
What occurs when a product adheres to or wets any kind of exposure? A. Conductivity B. Reactivity C. Antibosis D. Contamination
D. Contamination
Which is a characteristic of multi sensor instruments?
A. Do not need to be calibrated
B. Include one primary and one secondary sensor
C. Are not sensitive to interference
D. May include five or six different types os sensors
D. May include five or six different types of sensors
Halogenated hydrocarbon meters are useful because they detect: A. Chemical reactions B. Carcinogens C. Temperature differences D. Oxygen levels
B. Carcinogens
When using pH paper, the difference between each pH unit is a factor of \_\_\_\_ -fold difference in concentrations A. 10 B. 20 C. 2 D. 5
A. 10
Reagent tests, chemcial test strips, and pH paper are examples of: A. Surface acoustic wave technology B. Mass spectroscopy C. Wet chemistry D. Ion mobility spectrometry
C. Wet chemistry
The time from the exposure to a biological agent to the appearance of symptoms in an infected person is referred to as the: A. Infectious equivalent period B. Counts per minute (cpm) C. Roentgen equivalent in man (rem) D. Incubation period
D. Incubation period
Surface acoustic wave snsors may potentially be used in the detection of: A. Combustible gases B. Nereve and blister agents C. Radiation D. Biological agents
B. Nerve and blister agents
Poor hygiene after handling a hazardous material can lead to accidental: A. Inhalation B. Absorption C. Injection D. Ingestion
D. Ingestion
A disadvantage of pH meters is that they: A. Are relatively heavy B. Are expensive C. Must be replaced after use D. Must be calibrated prior to each uses
D. Calibrated prior to each use
What radiation unit iused to set dose limit for emergency responders because it itakes into account the dose absorbed and the biological effect on the human body? A. Roentgen (R) B. Counts per minute (CPM) C. Radiation absorbed dose (rad) D. Roentgen equivalent in man (rem)
D. Roentgen equivalent in man (rem)
Which device can measure the intensity of a beam of light as a function of the light source wavelength (color)?
A. Spectrophotometer
B. Gamma-ray spectrometer
C. Fourier transform infrared (FT-IR) spectrometer
D. Surface acoustic wave
A. Spectrophotometer