Deck 6: Piping Materials, Sources, and Distribution for Potable Water

Question 1

Lead pipe is not used for water piping primarily because

A) lead is expensive and generally not available.
B) lead joints are difficult to make.
C) water may dissolve lead causing noxious lead oxides.
D) all of the above.

Answer 1

C

Question 2

Private well systems are normally

A) drilled.
B) driven.
C) dug.
D) all of the above.

Answer 2

D

Question 3

A 5 micron filter will catch smaller particles than a 20 micron filter.

Answer 3

True

Question 4

Which of the following should be considered when selecting a pipe type for a job?

A) cost
B) expected life
C) method of installation
D) all of the above

Question 5

A pH value of 14 indicates that the water tested is

A) highly acidic.
B) highly alkaline.
C) highly basic.
D) neutral.

Question 6

The building water service is the section of piping that runs from the water meter to the building's water piping system.

Question 7

Lead pipe is still used for new water service piping installations.

Question 8

A drilled well is preferred as opposed to a dug well.

Question 9

Most water from natural sources has some undesirable characteristics.

Question 10

The ideal pH value for potable water is

A) 0-1.
B) 4-5.
C) 7-8.
D) 10-11.

Question 11

First cost is important, but it is not the only factor in determining the best choice for a project.

Question 12

Distribution systems include loop, grid, and tree arrangements.

Question 13

Public water systems include wells and septic tanks.

Question 14

A hose bibb should have a means of preventing backflow

Question 15

CPVC piping can be used for hot and cold water applications.

Question 16

Strainers should always be located downstream of any sensitive valves.

Question 17

PVC pipe is used on either hot or cold piping.

Question 18

A low pH in water means it is very acidic.

Question 19

Most large water supply systems are monitored continuously for undesirable or dangerous conditions.

Question 20

PE pipe is used on either hot or cold water distribution piping.

Question 21

The principal concern for public water piping system design is

A) average daily demand.
B) fire emergencies.
C) drought conditions.
D) floods.

Question 22

Trunk lines in public water systems

A) carry water from distribution lines to smaller local mains.
B) store treated water for periods of increased demand.
C) carry water from the water main to the building being served.
D) none of the above

Question 23

Normal water system pressure should be in which of the following ranges?

A) 25 and 50 psi static
B) 30 and 65 psi static
C) 30 and 75 psi static
D) 40 and 75 psi static

Question 24

The connection from a water main to a building or house water service is made by a

A) pressure-reducing valve.
B) manifold.
C) corporation cock.
D) water meter.