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Prev Med test II > 6.15 > Flashcards

6.15 Flashcards

1
Q

Unit commander responsibilities with Potable water

A

Ensure there sufficient amount of safe drinking, cooking and bathing water

Enforcement of water discipline

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2
Q

Engineering officers responsibility for potable water

A

provide sufficient potable water quantity for population

Selecting raw water source

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3
Q

Medical Departments responsibility with potable water

A

Advise the CO
test Bact and Halogen
Assist the engineering officer with water selection

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4
Q

all water in the field is considered what until proven otherwise?

A

unsafe

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5
Q

What influences the choice of water?

A

Quality
Quantity
Accessibility

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6
Q

Potential water sources are?

A

Public water supply
Surface water
Ground water
Commercial bottled water

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7
Q

example of surface water

A

river, streams, lakes

more contaminated than other sources

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8
Q

Examples of ground water

A

difficult to determine quantities

located 30yd upgradient from known contaiminenets

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9
Q

Describe typical field water treatment process

A 
Straining
Chemical addition
Coagulation
Sedimentation
Various kinds of filtration
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10
Q

Desribe the ROWPU?

A

most common
can make potable water from (fresh, brackish and sea water)
Multiprocess system that will remove all waterborne infectious microorganisms

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11
Q

Describe the Marine Corps Lightweight Medium Tactical Freshwater purification unit (LMT)

A

NON reverse osmosis
Produces 3,000gal per hour
only used with fresh water

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12
Q

Describe the Lightweight water purifier (LWP)

A

125 ga per hour

purify water for small units, spec ops and temporary medical facility

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13
Q

Describe the Tactical water purification system?

A

1500 gal and hour
replacing ROWPU
International organization for Standarization compatible with flat rack and load handling pallet system

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14
Q

Chlorination is what?

A

Most common way to disinfect water

Sufficient Chlorine added to achieve the FAC after 30mins

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15
Q

Different types of disinfectants

A

Calcium Hypochlorite (HTH) 65-70% most common granular
Bromine
UV

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16
Q

Required Chlorine residual

A

Point of production after 30min is 2.0ppm
Delivery to secondary storage 1ppm
if between 0.2 and 1ppm rechlorinate to 1ppm then deliver
filing canteens and personal hydration 0.2ppm
if less then 0.2ppm rechlorinate to 2.0 than deliver

17
Q

Ground water is ok to drink after what

A

2.0ppm after 30min

18
Q

Ho do you disinfect well water or natural source that under the direct influence of surface water?

A

5pp after 30min

19
Q

When to discard iodine tabs?

A

yellow or brown

stick together or crumble

20
Q

Describe the portable water storage and distribution system

A

Primary means for the receipt and storage of bulk drinking water and issue to combat forces

total capacity is based on size and quality of tanks used

21
Q

Describe the 3,000 gal tank

A

onion tank

highly mobile, easily transportable manually inflated and collapsible fabric tank

22
Q

Desribe the Forward are water point supply system (FAWPSS)

A

Portable and self-contained
Gas or diesel operated
Employs the centrifugal pump to distribute water

23
Q

Describe the semi trailer mounted fabric tank

A

transport only drinking water
collapsible rubber tank
3,000-5,000 ga tank

24
Q

Describe the water distribution and waste management system (WDWMS)

A 
The modules (Water distribution, hospital, Deployable medical system)
Primary means for water to a hospital in a tactical condition
25
Q

Describe the 400gal tank

A

Water bowl

used to deliver water to field unit

26
Q

Describe the 5gal water can

A

Unit water storage

27
Q

Describe the individual water storage equipment

A

1-2 quart canteen
personal hydration system
45-100oz capacity

28
Q

Describe the 800bal unit water podsystem (camel)

A

is under development and going to replace the old water bowls and be used by the MTV family of vehicles

29
Q

What are the disinfection cleaning methods?

A

method1
method2
Alternative procedure

30
Q

Disinfecting method 1

A

Chlorinate to 100ppm
run solution through valves and spigots
keep all interior surfaces wet for at least 60mins
drain the disinfecting solution rinse container and spigots twice with potable water

31
Q

Disinfecting method 2

A

if water or chemical are in short supply
prep 5gal with 100ppm
use long handled brush to swab interior of the tank every 10 minutes for 1 hour
run some through spigots and valves and drain
run potable water through twice

32
Q

alternate procedure for cleaning water

A

Chlorinate to 10ppm
hold for 24hrs
drain and rinse container twice with potable water

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