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REHS Study > Summary > Flashcards

Summary Flashcards

1
Q

FB illnesses per year

A

76 million

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2
Q

FB deaths per year

A

5,000

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3
Q

if suspected fb illness question what was consumed the last ______ hours

A

72 hours

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4
Q

BIG 5 diseases to report

A 
HENSS
hep a
e coli
noro
shigella
salmonella

possibly entamoeba histolytica

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5
Q

5 risk factors

A 
improper temp
inadequately cooked
poor personal hygiene
cross contamination
food unsafe source
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6
Q

cooling temps

A

135 to 70 in 2

20 to 41 in 4

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7
Q 
temps
eggs - immediate
eggs - hot holding
pork/beef/fish etc.
roast
ground meats
poultry/reheat etc.
A 
eggs 145 15
eggs no immediate 155 15 sec
pork beef fish 145 15 sec
roasts 145 4 min
ground meats 155 15 sec
poultry 165 15 sec
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8
Q

8 allergens

A 
eggs
dairy
fish
shellfish
peanuts
treenuts
wheat
soy
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9
Q

freezing temps for parasites

A
  • 4 for 7 days
  • 31 for 14 hours
  • 31 to solid then -4 for 24 hours
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10
Q

illness associated with tuna

A

scromboid

histamine

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11
Q

humans eat how much per day

A

1.5 lbs

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12
Q

hand washing must last for

A

20 seconds

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13
Q

7 haccp steps

A 
hazard analysis
ID ccp
set critical limits
set way to monitor ccp
set actions for critical limits reached
set way to monitory plan is working
records
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14
Q

grade a raw milk and grade a milk bacti counts

A

50,000

15,000 per ml

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15
Q

how much vitamin d added to milk

A

400 ius

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16
Q

cows produce how much milk per day

A

5-7 gallons

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17
Q

most heat resistant milk pathogen

A

coxiella burneti q fever

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18
Q

this test shows if pasteurization works

A

phosphatase test

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19
Q

vat/batch method

A

145 30 mins sour cream yogurt

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20
Q

htst method

A

166 15 sec best method

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21
Q

ultra high temp method

A

194 3/4 sec half half whipping cream

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22
Q

instantaneous pasteurization method

A

280f shelf satable creamers

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23
Q

mechanical ware wash levels

A 
50 ppm cl 30 sec
25 ppm iodine 1 min
160F
temp should be 140-160
rinse is colder
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24
Q

mannual ware wash levels

A

100 ppm cl 30 sec
25 iodine 1 min
200 ppm qat 1 min
171F 30 sec

min water temp 100

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25
Q

type of agent that separates minerals

A

sequestering agent

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26
Q

emulsify, break down carbs, proteins, usually basic

A

detergents

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27
Q

rinse aids/surfactans are also called

A

wettinga gents

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28
Q

lighting required

A

10 - walk in, dry storage, reach in, bar

20 - consum self serv, produce dispensing, hand washing, warewashing, equip storage

50 - prep, knives etc.

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29
Q

what are ABS and LAS

A

sequestering agents

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30
Q

avg size of bacteria

A

.5u to 3 u

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31
Q

gram stain colors for pos and neg

A

pos purple neg pink

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32
Q

routes of infection most common first

A 
respiratory
oral
eyes
skin
injection
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33
Q

requirements of bacti

A 
FATTOM
food - carbs/pro
acidity 4.5-9
time
temperature 41-135
oxygen
moisture  .85 or higher
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34
Q

bacti growth temps

A

psychrophiles
mesophiles 59-112 most pathogens
thermohphiles - spoilage organism

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35
Q

typhoid is associated with

A

salmonella

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36
Q

dysentery is associated

A

shigella

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37
Q

floppy baby is associated with

A

botulism

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38
Q

beans can cause

A

clost perf

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39
Q

rice can cause

A

bac cereus

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40
Q

preggo women/hardy organism/soft cheese

A

listeria

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41
Q

fastest acting bacti illness

A

staph aureus

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42
Q

a/c units can cause

A

legionaires disease

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43
Q

cholera is from ______ and causes _____

A

vibrio

rice water stools

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44
Q

the pheno coefficient organisms is

A

salmonella

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45
Q

name 5 deadly diseases

A 
HIV
hanta virus
plague
rabies
yellow fever
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46
Q

raw oysters can give you

A

vibrio vulnificus

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47
Q

associated with predatory reef fish is

A

ciguatera toxin

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48
Q

worm in fish

A

anisakis

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49
Q

rat urine can give you

A

hanta virus

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50
Q

animal urine in water can give you

A

leptospirosis

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51
Q

hikers get this protozoan from water

A

giardia

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52
Q

spa disease organisms

A

pseudomonas aeruguinosa

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53
Q

disease common from pools

A

cryptosporosis

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54
Q

tinea is

A

ringgworm

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55
Q

tse tse fly

A

african sleeping sickness

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56
Q

which is better ppe pos or neg pressure

A

pos pressure

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57
Q

ppe should be tested how often

A

yearly

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58
Q

how many levels of PPE which is best

A

A-D, A is best

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59
Q

hazmat 4 criteria

A 
TRIC
toxicity
reactivity
ignitability
corrosivity
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60
Q

DOT colors

A 
red - explosive
orange - flammable
yellow - reactive
green - non flammable gas
blue - water reactive
white - poison
white blk stripe - flammable solid
white over black - corrosive
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61
Q

DOT hazard classes

A 
1 - explosives
2 - gas
3 - flam liq
4 - flam sol
5 - oxidizers
6 - poison/eitologic
7 - radioactive
 8 - corrosive
9 - misc
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62
Q

NFPA from west clockwise

A

health, fire, reactivity, misc

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63
Q

ignitability typically fp less than

A

140F

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64
Q

type of reaction that releases heat

A

exothermic

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65
Q

oxygen deficient

A

19%

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66
Q

dens compared to air

A

vapor density

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67
Q

dens compared to water

A

spec grav

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68
Q

absolute pressure =

A

gauge pressure and atm pres

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69
Q

bp = ___ plus ____

A

vp plus atm p

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70
Q

toxicity levels

A

oral ld50 5,000 mg/kg one dose
dermal ld 50 4300 mg/kg 4 hr
inhalation lc50 10,000 ppm

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71
Q

allowable concentraiton for 15 min

A

STEL

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72
Q

TLV

A

threshold limit value

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73
Q

term for fresh waste water

A

gray water

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74
Q

gray water is how much solid

A

.2%

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75
Q

of solids in waste water what percent are organic

A

75

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76
Q

two items in prelim treatment

A

bar screens

grit removal

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77
Q

items in prelim treatment and type of process

A

physical

settling and sedimentation tanks

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78
Q

items in secondary treatment and type of process

A

biological
trickling/biofilter w/ spray arm
flocculation/coagulation with aeration tanks

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79
Q

tertiary treatment items and type of process

A

chemical process
filters, chlorination, lagoonization
aesthetic

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80
Q

pipe colors

A 
r - elec
y - gas
g - sewer
b - water
p - rec water
white - leach line
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81
Q

black water is

A

septic water

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82
Q

goal of waste water treatment

A

decrease BOD

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83
Q

dead water is

A

less than 4mg/l oxygen

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84
Q

sewage flows how fast

A

2 ft per second

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85
Q

sewage gets to treatment/disposal in how many days

A

2 days

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86
Q

how much water do humans use a day

A

50-100 gallons

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87
Q

waste water treatment is anaerobic or aerogic

A

aerobic

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88
Q

slugdge treatment is anaerobic or aerogic

A

anaerobic

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89
Q

digester

A

sludge treatment anaerobic 21 days

90
Q

tank for 2 bed

A

750 gal

91
Q

tank for 3 bed

A

1,000 gal

92
Q

liq in septic tank for how long

A

24 hr sinfle family, 12 hour large tnak

93
Q

from well how far tank and leach

A

tank 50 ft leach 100 ft

94
Q

perc method

A

24 hour sat

12’’ in hole, measure drop every 30 mins for 4 hours

95
Q

perc results

A

1min per ‘’ fall - 70 ft/bed
5 - 125
15 - 190
30 - 250

greater than 60 no system

96
Q

leach lines

A

36 wide 24 deep
1.5 pipe
rock
6’’ slope per 100 ft

97
Q

eutrophication

A

increase nutrient in water - phosphate, nitrogen, carbon algal blooms deplete oxygen

98
Q

cold air close to earth is called

A

thermal stratification

99
Q

how much water do we drink a day

A

3-5 lbs

100
Q

percent of water in ocean

A

97%

101
Q

sampling water

A

sodium thiosulfate in bottle run for 2-3 mins first

102
Q

hard water classify

A

more than 100 mg/calcium

ca and mg

103
Q

how to treat hard water

A

edta to dissolve limestone, increase salt drive out minerals

104
Q

best well type

A

drilled/casing

105
Q

percent on private wells

A

15%

106
Q

primary standard categories

A

inorganics, radionuclides, vocs/socs

107
Q

2 standards

A

more aesthtic

108
Q

stain water

A

manganese iron

109
Q

more adv test for coliforms

A

colilert 24 hr e coli and coli yello wis positive

110
Q

allowed coliform in water

A

1 per 100 ml

111
Q

new well/pipe chlorination

A

50-100 ppm for 12-24 hours

112
Q

water system maintain what free chlorine

A

.2ppm mg/l

113
Q

public system defined

A

15 connections, 25 people, 60 days a year

114
Q

year of safe drinking water act

A

1974

115
Q

air gap requirements

A

2 times pipe diam or 1’’ min

116
Q

3 mosquitos

A

anopheles - malaria no breathing tube
culex - encephalitis - long breathing tube
aedes - yellow - short breathing tube

117
Q

2 types of flies

A

biting and non biting

118
Q

requirements for flies 4

A

food - decay organic or feces
moisture
temperatre die below 32, prefer 45-112
soil

119
Q

fly larvae are called

A

maggots

120
Q

mosquito breeding cycle days

A

11-16 days

121
Q

most common cockroach in restaurant

A

german

122
Q

largest cockroach

A

american

123
Q

black cockroach

A

oriental

124
Q

tv roach

A

brown banded

125
Q

eggs of cockroaches

A

ootheca

126
Q

name the 3 rodents

A

norway - stocky - vicious - small eyes - sewer
roof rat - rattus rattus - skinnier - long tail - large eyes and ears - pickier eater - lab rat - good climber
house mouse - mus musca - small 3’’ - pointy noise - large eyes, grey white - between walls, cabinets crawl space

127
Q

how much waste generated a year

A

12-15 billion lbs

128
Q

a person generates how much waste a day

A

6lbs a day

129
Q

refuse is combination of

A

organic garbage

inorganics rubbish

130
Q

daily cover and final cover depth

A

6’’

24’’

131
Q

open and closed rise/run

A

open 1 to 2

closed 1 to 3

132
Q

landfill methods and most common

A

trench - for flat
area - on hill - most common
valley/ravin

133
Q

3 landfill classes

A

1 haz
2 some haz
3 no haz accepted

134
Q

3 requirements for incineration

A

time
temperaature 1500-1800F
trubulance

135
Q

amount of ash from incineration

A

25%

136
Q

temp for compost

A

140-150F

137
Q

soil types list

A 
sand
sandy loam
loam
silty loam
clayloam
loam
138
Q

product of composting

A

humus

139
Q

lanfill is ana/aero for ____ days then ____

A

aero 60 days then anaero

140
Q

composting is ana or aero

A

aerobic

141
Q

landfill gas requirements

A

methane 65
co2 35
hydrogen sulfide less than 1

142
Q

best filters for spa, pool over and under 30 k

A

cartridge - spa
DE - under 30k
sand over 30K

143
Q

turnover rates

A 
pool 6 hr
spa 30 min
spray ground 30 min
wading pool 1 hr
medical pool 2 hr
144
Q

wading pool depth

A

18’’

145
Q

chlorine breakdown into

A

hypochlorous acid (killing agent) and hypochlorous ion

146
Q

unstabilized chlorine nad percentages

A

sodium hypochlorite liq 11
calhypo 70
lihypo 35
cl gas 100

147
Q

stabilized chlorine types

A

dichlor 60 most ph stable

trichlor 90

148
Q

pool equip std

A

ansi/nsf 50 -2012

149
Q

to increase ph

A

soda ash, caustic soda

150
Q

to lower ph

A

muriatic acid

151
Q

to neutralize chlorine

A

sodium thiosulfate

152
Q

to get rid of algea

A

copper sulfate

153
Q

max opper in pool

A

.2 mg/l

154
Q

TDS hard water for pool

A

175 - 300 ppm

155
Q

max turbity

A

.5 NTU

156
Q

comb chlorine max

A

.4 ppm

157
Q

pool and spa capacity

A

pool 1 per 10 sq ft
spa 1 per 20 sq ft

surf area divide y 10 or 20

158
Q

depth line at ___ for deeper than

A

4.5

5

159
Q

no diving for less than

A

6 ft

160
Q

fencing

A

5 feet tall
4 ft horizontal bars
4’’ gap
chain link 1.75’’

161
Q

what to do for formed stool or vomit

A

ph below 7.5 temp above 77

2ppm for 25 mins

162
Q

what to do for diarhea in pool spa

A

ph below 7.5 or 6.5 if cya and 77 or above temp

40 ppm for 30 hrs

163
Q

humans expel ____ qts per day of water

A

6 qts

164
Q

humans breath how much per day

A

35 lbs

165
Q

greenhosue effects

A

more cos in atm than water causes

more sunlight

166
Q

atmosphere percentages

A

n 78
o21
co2 and o3 .97
others .3

167
Q

atmosphere layers

A

thermosphere 50mi/80 km
meso 30mi/50k
stratosphere 12mi/20k
troposphere

168
Q

inorganic pollutants

A

sulfur oxides most =toxic
nitrous oxides
co3

169
Q

organic pollutant

A

hydrocarbons

170
Q

co forms from

A

incomplete comubations

171
Q

name the particulates

A

dust 10u smaller
smoke .1u smaller
fumes metal
aerosols smaller liq than mists

172
Q

federal clean air act name the 6

A 
particulates 10 or smaller
pb
co3
no
so
co
173
Q

hearing loss 2 types

A

socio - environment

presbycusis - aging

174
Q

PEL of noise

A

85 db

175
Q

most common measureing device for noise

A

sound level meter

176
Q

pts and tts

A

temp thershold shift noise

permanent threshold shift noise - irreversible

177
Q

100 db and 100 db is

A

103 db

178
Q

2 times distance from noise = -__db

A
  • 6 db
179
Q

sound stravels how fast1

A

1178 ft/sec

770 mph

180
Q

treat and riser

A

tread min 9’’

riser max 8.25’’

181
Q

direct connection gap req

A

2’’

182
Q

minimum living space

A

100 sq ft
70 per bedroom
no wall less than 7 ft

183
Q

chimney distance

A

3 ft

184
Q

max radon

A

4 mg/l

185
Q

best sample for hazmat

A

grab sample

186
Q

mulitple samples in multiple locations and times is called

A

compositve or bath sampling

187
Q

number of samples for food and hazmat

A

food 3, 1 forviolatio

hazmat 4 2 for violator

188
Q

biohazart levels hwich is worse

A

1-4 4 is most dangerous

189
Q

lq qty generator of med waste

A

200 lbs/month

190
Q

steam sterilizing for med waste

A

121C/250F 30 mins

191
Q

sm qty hauler med waste

A

20 lbs less driving ok

192
Q

on site storage of med waste

A

7 days or 90 if below 32

193
Q

med waste act past in wahat year

A

1990

194
Q

3 requirements for light

A

illumination foot candles
brightness food lamberts
contrast

195
Q

ideal contrast is waht percent

A

60 to 80

196
Q

calculate contrast

A

backg - object

x/back x 100

197
Q

class room lighting req

A

50 foot candles

198
Q

luminous flux is

A

amount of light from source

199
Q

most pleasing color

A

green

200
Q

how much stronger are fluorescent bulbs

A

4 times

201
Q

negative ions

A

created by fluroescent bulbs

202
Q

wavelength list

A 
gamma
x ray
uv light
visibile light
ir
microwave
tv
radio
203
Q

isotope

A

same protons diff neutrons

same atomic number diff mass

204
Q

many isotopes of one element is

A

radionuclides

205
Q

worse type of radiation

A

ionizing

206
Q

4 types of ionizing radiatoin

A

alpha - nucleus
beta - stronger - electrons
gamma - can be lethal
x ray - highly penetrate

207
Q

pel for radiation

A

5 rem/yr

208
Q

daedy amounts of radiaton is

A

350-400 rem

209
Q

units for intensity of radiation

A

R, c/kg

roentgen

210
Q

units for exposure to radiation

A

REM, S sievert

211
Q

units for radiation absorbed

A

RAD, Gy gray

212
Q

units for energy of x ray

A

eV

213
Q

units for radioactivity

A

curies C, or Bq becquerels

214
Q

double the distance from radiation decreases the exposure by what percent

A

25%

215
Q

civil wrong is a

A

tort

216
Q

name the feasances

A

mal - wrong
mis - unknown wrong
non - knew about a wrong and didn’t report

217
Q

slander vs libel

A

slander is spoken

218
Q

variance stat

A

difference w/ in data

219
Q

std deviation state

A

how spread out data area sq root of variance

220
Q

soveign immunity does what

A

protects agency from being sued

REHS Study (20 decks)

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