Laboratory Safety

Question 1

physically remove hazard

Answer 1

elimination

Question 2

replace hazard

Answer 2

substitution

Question 3

isolate people from the hazard

Answer 3

engineering controls

Question 4

change the way people work

Answer 4

administrative controls

Question 5

protect the worker with PPE

Answer 5

PPE

Question 6

most important means of preventing the spread of infection

Answer 6

handwashing

Question 7

thoroughly clean between your fingers and under your fingernails for at least ___ secs

Answer 7

20

Question 8

rinse your hands in a ___ position to prevent recontamination

Answer 8

downward

Question 9

donning

Answer 9

gown - mask - goggles -gloves

Question 10

doffing

Answer 10

gloves - goggles - gown - mask

Question 11

BSC Class ___ - sterilizes only the air to be exhausted
does not protect work surface

Answer 11

BSC Class I

Question 12

BSC Class ___ -
for microbiology
aka vertical laminar flow
sterilizes air that flows over the infectious material as well as air to be exhausted

Answer 12

BSC Class II

Question 13

70% recirculated
30% exhauasted

Answer 13

A1

Question 14

same as A1 but with higher intake air velocity or 100 lfm

Answer 14

A2

Question 15

30% recirculated
70% exhausted

Answer 15

B1

Question 16

100% exhausted

Answer 16

B2

Question 17

BSC Class ___ -
completely enclosed with glove ports
provides highest level of personnel protection
for extremely hazardous organisms

Answer 17

BSC Class III

Question 18

decontamination solution

Answer 18

5.25%NaOCl or 10% chlorine

Question 19

chlorine:water dilution

Answer 19

1:10

Question 20

wavelength of ultraviolet

Answer 20

<400nm

Question 21

wavelength of visible spectrum

Answer 21

400-700nm

Question 22

wavelength of infrared

Answer 22

> 700nm

Question 23

wavelength of microwaves

Answer 23

3um-3mm

Question 24

wavelength of low frequency

Answer 24

> 1cm

Question 25

used for materials that give off harmful vapors

Answer 25

fume hood

Question 26

major source of information about chemicals written by manufacturers

Answer 26

Safety Data Sheet (SDS)

Question 27

recommended maximum allowable exposure (8hrs shift)

Answer 27

threshold limit value (TLV)

Question 28

regulated limit enforced by OSHA

Answer 28

Permissible Exposure Limit (PEL)

Question 29

toxicity level is ____ to TLV, PEL

Answer 29

inversely proportional

Question 30

absorbs water when exposed to air

Answer 30

hygroscopic

Question 31

interferes with metabolic processes

Answer 31

toxic substances

Question 32

cancer-causing, mutation (DNA damage)

Answer 32

carcinogen/mutagen

Question 33

causing birth defects

Answer 33

teratogen

Question 34

Yellow diamond

Answer 34

reactivity/instability

Question 35

White diamond

Answer 35

special

Question 36

Blue diamond

Answer 36

health

Question 37

Red diamond

Answer 37

Fire/flammability

Question 38

Health 4,3,2,1,0

Answer 38

4- deadly 3- extreme danger 2- hazardous 1- slightly hazardous 0- normal material

Question 39

Fire/Flammability flash point 4,3,2,1,0

Answer 39

4- below 73F 3- below 100F 2- below 200F 1- above 200F 0- will not burn

Question 40

Reactivity/Instability 4,3,2,1,0

Answer 40

4- may detonate 3- shock and heat may detonate 2- violent chemical change 1- unstable if heated 0- stable

Question 41

under special

Answer 41

OXY ACID ALK COR water-reactive radioactive

Question 42

actions to take in the event of fire (RACE)

Answer 42

Rescue Alarm Contain Extinguish/evacuate

Question 43

steps in operating a fire extinguisher (PASS)

Answer 43

Pull pin Aim nozzle Squeeze trigger Sweep nozzle

Question 44

Class __ ordinary combustibles (household)

Answer 44

A

Question 45

Class __ flammable liquids

Answer 45

B

Question 46

Class __ electrical equipment

Answer 46

C

Question 47

Class __ flammable metals; professional firefighters

Answer 47

D

Question 48

Class __ arsenal or materials that are liable to result in detonation

Answer 48

E

Question 49

Class __ combustible for cooking

Answer 49

K