Chapter 11

Question 1

devices that measure ______________, measure materials that responders might inhale

Answer 1

concentrations

Question 2

devices that measure ____________, measure materials that may enter responders’ bodies via a means other than inhalation

Answer 2

dosage

Question 3

maximum length of time an individual can be exposed to an airborne substance before injury, illness, or death ocurs

Answer 3

exposure limit

Question 4

quantity of a material in relation to a larger volume of gas or liquid

Answer 4

concentration

Question 5

may describe the concentration of a gas or vapor in the air or the concentration of a specific material in a liquid or solid

Answer 5

parts per million. PPM

Question 6

concentration that can be tolerated during an 8 hour work day

Answer 6

threshold limit value

Question 7

concentration that can be tolerated for 15 minutes at a time, provided an appropriate interval between exposures

Answer 7

short-term exposure limit

Question 8

concentration that should not be exceeded during an 8 hour workday

Answer 8

threshold limit value - ceiling

Question 9

concentration at which most people are not adversely affected

Answer 9

permissible exposure limit

Question 10

concentrations high enough to kill or cause serious injury or illness

Answer 10

IDLH

Question 11

hazardous materials incidents will always require _________ and __________________

Answer 11

size up, risk assessment

Question 12

response to known or unknown chemicals or products that will trigger some action

Answer 12

action levels

Question 13

at releases involving unknown hazards, a responder’s first priority is to monitor for _____.

Answer 13

pH

Question 14

water molecule with an extra hydrogen ion.(acid)

Answer 14

hydronium

Question 15

water molecule missing a hydrogen ion (base)

Answer 15

hydroxide

Question 16

the concentration of ___________ and ____________ ions in a solution determines the solutions pH.

Answer 16

hydronium, hydroxide

Question 17

pH scale ranges from ___________.

Answer 17

0-14

Question 18

a pH of ________ is neutral

Answer 18

7

Question 19

__________ substances have excess hydronium ions and a pH of less than 7

Answer 19

acidic

Question 20

__________ substances have excess hydroxide ions and a pH of greater than 7

Answer 20

base

Question 21

as pH levels increase above 7, compounds become more ____________

Answer 21

alkaline

Question 22

as pH levels decrease below 7, compounds become more ____________

Answer 22

acidic

Question 23

acidic and base solutions usually consist of chemicals dissolved in __________

Answer 23

water

Question 24

pH paper that is striped or bleached my indicate the presence of ___________ and __________ __________

Answer 24

oxidizers, organic peroxides

Question 25

______ pH paper is slow to react to atmospheric conditions, or it may not react at all

Answer 25

dry

Question 26

of all the chemical elements, __________ is the most reactive

Answer 26

fluorine

Question 27

typically, LEL meters will sound an alarm at _______ of the LEL of the calibration gas

Answer 27

10%

Question 28

use ___________ __________ starch papers to test the oxidizing potential of unknown chemicals

Answer 28

potassium iodide

Question 29

below _______ oxygen, the atmosphere is considered oxygen deficient and IDLH

Answer 29

19.5%

Question 30

the atmosphere is considered oxygen enriched at concentrations above ________

Answer 30

23.5%

Question 31

normal air contains _______ oxygen, _______ nitrogen, and _______ other gases

Answer 31

20.9% 78.1% 1%

Question 32

a one percent drop in oxygen is equivalent to __________ ppm of something else in the air.

Answer 32

50,000

Question 33

large amounts of radiation exposure are usually expressed in ________

Answer 33

rem

Question 34

smaller amounts of radiation exposure may be described in _________

Answer 34

millirem

Question 35

only measure exposure to gamma and X-ray radiation

Answer 35

Roentgen

Question 36

________ expresses the amount of radiation energy absorbed by a material

Answer 36

RAD

Question 37

_______ expresses the absorbed dose equivalence as pertaining to a human body

Answer 37

rem (roentgen equivalent in man)

Question 38

common example of gas filled radiation detector is ______________

Answer 38

Geiger-Mueller Tubes

Question 39

indicates the minimum amount of solid or liquid that when ingested, absorbed, or injected through the skin will cause death

Answer 39

lethal dose

Question 40

indicates the minimum concentration of an inhaled substance in the gaseous state that will kill the test group

Answer 40

lethal concentration