Trinity Lindemann Ch 11

Question 1

Porosity

Answer 1

is the extent to which a material will absorb liquids

Question 2

Resiliency

Answer 2

means a material can react to a shock without breaking or cracking

Question 3

Coving

Answer 3

is a curved, sealed edge placed between the floor and the wall to eliminate sharp corners or gaps that would be impossible to clean

Question 4

NSF

Answer 4

is an organization that creates these national standards.

Question 5

Potable

Answer 5

drinkable water

Question 6

Booster Heater

Answer 6

used to maintain water temperature

Question 7

Cross-Connection

Answer 7

is a pysical link between safe water and dirty water, that can come from drains, seweres, or other wastewater sources

Question 8

Backflow

Answer 8

is the reverse flow of contaminants through a cross-connection into a drinkable water supply

Question 9

backsiphonage

Answer 9

when high water use in one area of operation creates a vacuum in the plumbing system that sucks contaminants back into the water supply. (a running faucet below the flood rim of a sink is an example of a cross-connection that can lead to backsiphonage

Question 10

Vacuum Breaker

Answer 10

is a mechanical device that prevents baksiphonage

Question 11

Air Gap

Answer 11

is an air space that seperates a water supply outlet from a potentially contaminated source

Question 12

5 Requirements for a hand-washing station

Answer 12

1. hot and cold running water
2. soap
3. a way to dry hands
4. garbage container
5. signage