PMT 108 WATER UPDATED EXAM SCRIPT QUESTIONS AND
SOLUTIONS RATED A+
✔✔When performing a stream survey, what are examples of evidence of
contamination? - ✔✔- Dead fish or vegetation
- Excessive algae growth
- Oil slicks
- Sludge deposits
✔✔What determines the ability of water to neutralize physical nuisances? - ✔✔- Volume
- Velocity
✔✔Which purification zone:
- Carbonaceous matter is oxidized
- Immediate increase in stream Biochemical Oxygen Determination (BOD)
- Immediate increase in oxygen utilization in area of pollution discharge - ✔✔Zone of
pollution
✔✔Which purification zone:
- Area just below the source of of stream pollution
- Pollution has recently been introduced - ✔✔Zone of degradtion
✔✔Which purification zone:
- Waste products are decomposed and consumed by larger organisms to sustain life -
✔✔Zone of active decomposition
✔✔Which purification zone:
- Point where water quality gradually returns to its biological and physical state prior to
the entrance of waste discharge - ✔✔Zone of recovery
✔✔Which purification zone:
- Point where stream has returned to its original state prior to pollution - ✔✔Zone of
cleaner water
✔✔Which form of sampling: Is a single sample of the water taken at any one designated
time - ✔✔Grab sampling
✔✔Which form of sampling: Is collected by mixing together samples that have been
collected at regular intervals over a 24 hour period - ✔✔Composite sampling
✔✔Which form is used to perform water reconnaissance? - ✔✔DA Form 1712-R
, ✔✔About how many gallons per day can the Tactical Water Distribution System pump
out? - ✔✔600,000 Gallons per day
✔✔If possible, how should tactical water distribution site be positioned in reference to
an existing road? - ✔✔- Near or parallel
✔✔When there is in excessive drop in elevation, how would this effect the pressure in
the hose line route? - ✔✔Increases pressure
✔✔Which ROWPU unit purifies: 125 gph - ✔✔Lightweight water purifier (LWP)
✔✔Which ROWPU unit purifies: 600 gph - ✔✔Trailer mounted
✔✔Which ROWPU unit purifies: 1,500 gph - ✔✔TWPS
✔✔Which ROWPU unit purifies: 3000 gph - ✔✔Container mounted unit
✔✔How far should sources of pollution be when inspecting for a water point? - ✔✔2
miles upstream
✔✔When requesting to use an alternative container for water, who should you receive
permission from? - ✔✔- Preventive Medicine
- Local Medical Authority
- Unit Commander
✔✔What should be stenciled on the exterior of a container? - ✔✔POTABLE WATER
ONLY
✔✔When disinfecting a water tank, how long should keep interior surfaces wet with
solution? - ✔✔60 minutes
✔✔What are the chlorine residual requirements for: Point of production? - ✔✔2.0 ppm
✔✔What are the chlorine residual requirements for: Point of distribution - ✔✔1.0 ppm
✔✔What are the chlorine residual requirements for: Point of consumption? - ✔✔0.2 ppm
✔✔When using Calcium hypochlorite to disinfect water, how long should contact time
for any container? - ✔✔30 minutes
✔✔In which purification zone is the general impact:
- High turbidity
- Sludge Deposits form on stream bed
SOLUTIONS RATED A+
✔✔When performing a stream survey, what are examples of evidence of
contamination? - ✔✔- Dead fish or vegetation
- Excessive algae growth
- Oil slicks
- Sludge deposits
✔✔What determines the ability of water to neutralize physical nuisances? - ✔✔- Volume
- Velocity
✔✔Which purification zone:
- Carbonaceous matter is oxidized
- Immediate increase in stream Biochemical Oxygen Determination (BOD)
- Immediate increase in oxygen utilization in area of pollution discharge - ✔✔Zone of
pollution
✔✔Which purification zone:
- Area just below the source of of stream pollution
- Pollution has recently been introduced - ✔✔Zone of degradtion
✔✔Which purification zone:
- Waste products are decomposed and consumed by larger organisms to sustain life -
✔✔Zone of active decomposition
✔✔Which purification zone:
- Point where water quality gradually returns to its biological and physical state prior to
the entrance of waste discharge - ✔✔Zone of recovery
✔✔Which purification zone:
- Point where stream has returned to its original state prior to pollution - ✔✔Zone of
cleaner water
✔✔Which form of sampling: Is a single sample of the water taken at any one designated
time - ✔✔Grab sampling
✔✔Which form of sampling: Is collected by mixing together samples that have been
collected at regular intervals over a 24 hour period - ✔✔Composite sampling
✔✔Which form is used to perform water reconnaissance? - ✔✔DA Form 1712-R
, ✔✔About how many gallons per day can the Tactical Water Distribution System pump
out? - ✔✔600,000 Gallons per day
✔✔If possible, how should tactical water distribution site be positioned in reference to
an existing road? - ✔✔- Near or parallel
✔✔When there is in excessive drop in elevation, how would this effect the pressure in
the hose line route? - ✔✔Increases pressure
✔✔Which ROWPU unit purifies: 125 gph - ✔✔Lightweight water purifier (LWP)
✔✔Which ROWPU unit purifies: 600 gph - ✔✔Trailer mounted
✔✔Which ROWPU unit purifies: 1,500 gph - ✔✔TWPS
✔✔Which ROWPU unit purifies: 3000 gph - ✔✔Container mounted unit
✔✔How far should sources of pollution be when inspecting for a water point? - ✔✔2
miles upstream
✔✔When requesting to use an alternative container for water, who should you receive
permission from? - ✔✔- Preventive Medicine
- Local Medical Authority
- Unit Commander
✔✔What should be stenciled on the exterior of a container? - ✔✔POTABLE WATER
ONLY
✔✔When disinfecting a water tank, how long should keep interior surfaces wet with
solution? - ✔✔60 minutes
✔✔What are the chlorine residual requirements for: Point of production? - ✔✔2.0 ppm
✔✔What are the chlorine residual requirements for: Point of distribution - ✔✔1.0 ppm
✔✔What are the chlorine residual requirements for: Point of consumption? - ✔✔0.2 ppm
✔✔When using Calcium hypochlorite to disinfect water, how long should contact time
for any container? - ✔✔30 minutes
✔✔In which purification zone is the general impact:
- High turbidity
- Sludge Deposits form on stream bed
