Water Plumbing

Question 1

What solder materials should be avoided on potable water systems?

Answer 1

Lead

Question 2

If connecting pipes comprised of different metals, what precautions need to be taken to prevent galvanic corrosion?

Answer 2

Dielectric fittings

Question 3

Why should we be concerned with total dissolved solids in the domestic water supply?

Answer 3

Hard water may need treatment to reduce the TDS.

Question 4

The humidifier make-up water to a computer room air conditioning unit is typically controlled by what?

Answer 4

Float switch or valve or level sensor.

Question 5

True or False:

A storm drain and a sanitary sewer eventually discharge from a facility through a common sewage line.

Answer 5

FALSE

Question 6

What is the main cause for a condensate drain to clog?

Answer 6

Algae growth

Question 7

Give one specific example of where a domestic water backflow preventer is used?

Answer 7

Cooling tower make-up, humidifier feed.

Question 8

When installing a piece of equipment, what types of fittings will allow easy removal and replacement in the future?

Answer 8

Unions

Question 9

Why is there a trap under a sink?

Answer 9

Prevent sewer gasses from entering occupied space

Question 10

What are the main issues that you would face if there was a complete loss of domestic water?

Answer 10

Restroom O/S, no make up water to the condenser water system, no drinking water.