Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
72 Cards in this Set
- Front
- Back
Waste by products of Sulfur Oxide Scrubbers
|
CaSO4- calcium sulfate
|
|
Average holding time for septic tanks
|
24 Hours
|
|
Hot water sanitizing MINIMUM Temp in Calcode is?
|
171F
|
|
Colors of soil mean what?
1. Black 2. Brown 3.red/orange 4.Blue/green |
1. Anaerobic conditions H2S- No oxygen
2. Good soil water absorption 3. iron 4. copper |
|
Emergency Shelter, list requirements for:
1. Space 2.Vent 3.Light |
1. 20-30sq ft per person floor space; 3ft apart bed space
2. 40-50 cubic ft air/vent 3. battery operated AUX |
|
Emergency Shelter, list req for water
|
1. gal/per person/day drinking and cooking, personal hygiene, laundry, dish washing.
2. 2 Gallons min per person 3. 1 toilet per 10-20 females or 25-50 males. 1 toilet per 20 people |
|
Emergency shelter list for bathing and hand washing
|
15 people per hand washing and showering
|
|
Emergency shelter list Solid Waste Req for each occupant
|
30 call noncomubustible container per 10 people
|
|
DISEASE INCUBATION PERIOD:
1. Hours 2. Days |
1. Intoxication- toxin already grew in food. ( No fever just vomit)
2. Infection -takes time to grow inside the host then make you sick. ( |
|
Most common food intox is?
|
Viruses: IE-Norovirus
|
|
Most common food infection is
|
Staph A
|
|
Back flow ?
|
Unwanted flow of water in the reverse direction. 2 reasons is back pressure and back siphonage.
|
|
Back siphonage?
|
Reversal of flow due to negative pressure; uses a atmospheric vacuum breaker.
|
|
Back pressure?
|
Where contamination is forced into potable water system through connection that has higher pressure than the water system.
|
|
Air gap req?
|
2X what ever the inch. 1 inch min
|
|
Double check valve:
|
used in low haz situation; when backflow source may be polluted NOT CONTAMINATED (Nuisance)
|
|
Malaria? Most dangerous one.
|
Protozan most dangerous is :Plasmodium Falciparum . Others:
P. Vivax and P malariae |
|
Sprochete for LYME DISEASE?
|
Borielia Burgdurfoeri
|
|
Spirochete for RELAPSING FEVER?
|
Borrelia Hermsi; Ornithodoros hermsi (Soft tick)
|
|
What Chemical is used to Raise the pH in Pools?
|
Sodium Carbonate (SODA ASH) NaCO3
or Sodium Hydroxide (Caustic Soda) NaOH |
|
UST Question:
Whats the purpose of INTERSTITIAL MONITORING? |
To detect presence of any fluid between primary and secondary containment.
|
|
UST QUESTION:
All USTU facilites in CA were required to Identify in writing a designated operator by when? |
January 1, 2005
|
|
UST Question:
Under dispenser containment was required at the time of the installations for all systems installed after what date? |
December 31, 2003
|
|
New UST?
|
Existing UST under ground storage tank installed prior Jan 1, 1984.
|
|
Existing UST?
|
New underground storage tank which is not an existing underground storage tank.
|
|
Good visibility depends on?
|
Contrast between objects and background. Ratio of 60:80%
|
|
Specular Reflection
|
Reflection of smooth surface which light ray leaves at the same angle it came from. too much results in GLARE.
|
|
Shadows
|
Produce by strong source such as the sun
|
|
Diffused light
|
light reflected off a light colored wall. Produces soft shadows.
|
|
Highly diffused light
|
IE-Overcast or a cloudy day. Produces no shadow.
|
|
Direct light
|
light distrubiting 90-100% of direct sources that is aimed at.
|
|
Direct-Indirect lighting
|
mixed light from different sources all at one time
|
|
indirect lighting
|
90-100%light directed towards ceiling and upper side walls. reflected in all parts of the room
|
|
Semi-indirect light
|
60-90% directed to ceiling and upper walls. while dense diffusing glass allows some of the light to pass through indirectly downward.
|
|
Light for studying?
|
Direct-Indirect light
|
|
Light for work?
|
Combo of both Diffused and Direct
|
|
Florescent lighting?
|
uses UV light and mercury in an arc. UV light causes excitement to the florescent chems to produce light. Good for air quality because negative ions bind with air pollutants causing them to fall out.
|
|
Best Chlorine for Pools?
|
Hyperchlorous Chlorine (HOCl) measured by free residual chlorine
|
|
Cl below .4 causes what?
|
Production of Chloramines.
|
|
Chlormaines ?
|
Cl combined with (Nitrogen or Ammonia) causes odors
|
|
Chemical to raise pH?
|
Sodium Carbonate (Soda Ash) or Sodium Hydroxide (NaOH which is Caustic acid)
|
|
Chemical to lower pH?
|
Hydrochloric Acid (Muratic Acid)
|
|
Chemical to neutralize cl?
|
Sodium Thiosulfate
|
|
Chemical to stabilize cl?
|
Cynuric acid
|
|
4 types of infection?
|
1. Bacteria
2. Virus 3. Fungi 4. Parasitic |
|
Symptoms?
|
Clincal
|
|
Diseased but not showing symptoms yet
|
Subclinical
|
|
"Carrier"
|
Asymptomatic
|
|
2 types of Noncosmial infection
|
1. Staph A
2. Strep |
|
4 Common infections FECAL AND ORAL
|
1. Shigella
2. Cholera 3. Ascaris 4. Amebiasis |
|
Naturally Acquired Passive Immunity?
|
Resistance through prenatal
|
|
Artificially- Acquired Passive Immunity
|
Inoculation of anti bodies from human, animal blood or plasma. Short term immunization
|
|
Artfically-Acquired Active Immunity
|
Vaccination- inoculation of weak or killed infectious agents
|
|
Naturally Acquired Active Immunity
|
Resistance naturally by producing own antibodies such as Chicken Pox
|
|
Colorado Tick fever?
|
Dermecentor Andersoni (Wood Tick)
|
|
Deer mice?
|
Hanta Virus- Breathe Urine,feces, and saliva
|
|
Free Available Cl?
|
Supply of Hyperchlorous Clorine remains free to sanitize the pool
|
|
HOCl-Hyperchlorous Acid combines with other substances and what happens?
|
Combines with organic compounds and ammonia and NO LONGER FREE Chlorine available. Now forms Chloramines (BAD)
|
|
Redish-brown water
|
Iron
|
|
Brown-Black water
|
Manganese
|
|
Blue-green water
|
Copper corrosion, algae growth
|
|
Testing water chlorine you must first do what?
|
Stabilize Chlorine with Sodium Thiosulfate which is a chlorine stabilizer.
|
|
Break point Chlorine
|
Shocking Treatment- Putting a lot of Chlorine so that free chlorines will break apart.
|
|
Methods to destroy chloramines?
|
1.Shock Treatment
2. Super Chlorination |
|
Total chlorine?
|
Sum of combined and free available Cl.
|
|
ORP?
|
Oxidation-reduction potential- measurement of oxidizers ability to oxidize contaminants vs. the opposite effect.
|
|
Oxidizer?
|
Compound that removes or destroys organic compounds in water.
|
|
Phenol Red?
|
Used to test pH.
|
|
Characterstics:
Gram Negative Aerobic Rod Shaped Non-Spore-forming Ferments lactose sugars (milk) |
Characteristics of Coliform Bacteria
|
|
Foot candle?
|
Measure of intensity of illumination. amount of light striking 1 sqft surface from 1ft away (Distance)
|
|
Foot Candles (Cal Code) of:
1. food prep 2. cleaning activity 3. lighting class room |
1. 10 foot candles
2. 20 foot candles 3. 50 foot candles |
|
Naphalometric device?
|
Measures TDS
|