P-5010 CH-6, WATER AFLOAT

Question 1

Standards for water afloat?

Answer 1

CHBUMED

Question 2

NSTMs

Answer 2

531

533

Question 3

Drinking water NSF/ANSI standard?

Answer 3

60

Question 4

Potable water risers how far off deck?

Answer 4

18”

Question 5

Steps for ship to shore connection

Answer 5

5

Question 6

3 Types of distillation plants?

Answer 6

Steam
Waste heat
Vapor compression

Question 7

Max shower water temp

Answer 7

120 F

Question 8

“potable water only” ever ten feet of hose, how high are the letters?

Answer 8

1/4”

Question 9

** Not less than ____ FAC after 30 minute contact time? **

Answer 9

** 0.2 ppm **

Question 10

Mechanical treatment is preferred to

Answer 10

Batch treatment

Question 11

HTH has what percent available chlorine?

Answer 11

65-70% (6oz bottle)

only 5.25 in Sodium Hypochlorite i.e. household bleach

Question 12

HTH storage?

Answer 12

7 day ready use supply

No more than 48 6oz bottles stowed at any locker/bin

Question 13

Color for label “Hazardous material, calcium hypochlorite”

Answer 13

Red letters

White background

Question 14

Bromine shelf life?

Answer 14

2 yrs

Question 15

Two types of brominators?

Answer 15

In Line

Recirc

Question 16

Batch treatment?

Answer 16

1oz HTH added to 5,000 gallons = 1ppm inital chlorine concentration

Question 17

Tanks should achieve 0.2ppm FAC for what contact time?

Answer 17

30min

Question 18

Inspect HTH bottles how often?

Answer 18

Q 3 months and prior to deployment

Question 19

Shore supply is tested for _____ daily

Answer 19

Halogen

Question 20

Bacteriological testing 1/4 of ice machines how often?

Answer 20

Weekly

Question 21

DPD - Diethyl-p-phenylene tests what?

Answer 21

Chlorine/bromine residuals

Question 22

DPD accuracy

Answer 22

Within 10%

Question 23

Spectophotphotometric accuracy?

Answer 23

+2 %

Question 24

Calcium hypochlorite introduces clear fluid when tank is how full

Answer 24

1/4

Question 25

Sodium hypochlorite does not require what?

Answer 25

mixing, dilution required

Question 26

Procedures for positive coliform sample?

Answer 26

Repeat sample from same tap

2 other samples from w/in 5 service connections (one up/one down stream)

Question 27

Gallons of water per person per day?

Answer 27

12 – 35 gallons

Question 28

three ¼ inch vented holes at bottom of box when storing?

Answer 28

Calcium Hypochlorite

Question 29

“Butterworthing” is a term used for?

Answer 29

Mechanical cleaning

Question 30

Superchlorination

Answer 30

• Chlorinate tank water level to 100 ppm FAC
• Water must be tested hourly for a total of four hours
• If ppm drops below 50 ppm FAC, restart entire process

Question 31

Emergency Potable Water Tanks

Answer 31

• Must be drained & refilled quarterly (every 3 months)
• Must be open & inspected for sludge / foreign matter every three years
• Bacteriological analysis from tanks performed monthly

Question 32

Water Log = Maintained by medical for how long?

Answer 32

two years