Print Options

Card layout: ?

← Back to notecard set|Easy Notecards home page

Instructions for Side by Side Printing
  1. Print the notecards
  2. Fold each page in half along the solid vertical line
  3. Cut out the notecards by cutting along each horizontal dotted line
  4. Optional: Glue, tape or staple the ends of each notecard together
  1. Verify Front of pages is selected for Viewing and print the front of the notecards
  2. Select Back of pages for Viewing and print the back of the notecards
    NOTE: Since the back of the pages are printed in reverse order (last page is printed first), keep the pages in the same order as they were after Step 1. Also, be sure to feed the pages in the same direction as you did in Step 1.
  3. Cut out the notecards by cutting along each horizontal and vertical dotted line
To print: Ctrl+PPrint as a list

38 notecards = 10 pages (4 cards per page)

Viewing:

B Exam: Distribution

front 1

What is the minimum pressure required in the distribution system?

back 1

20 psi

front 2

The distribution system must have a minimum of _mg/L in the distribution mains.

back 2

0.2 mg/L

front 3

What is the minimum combined residual for the distribution system?

back 3

0.6 mg/L

front 4

What is the maximum free or combined chlorine residual in the distribution system?

back 4

4 mg/L

front 5

Valves on distribution mains should be how far apart?

back 5

800-1,000

front 6

How far apart are fire hydrants in residential areas?

back 6

500'

front 7

Fire hydrants in commercial areas should be how far apart?

back 7

No more than 300' from any part of a commercial building

front 8

How often should water main valves be exercised?

back 8

At least once a year

front 9

What is the main purpose of water storage tanks?

back 9

front 10

What is the configuration of a standpipe?

back 10

It is taller than it is wide

front 11

How many feet apart should a ladder be in a trench?

back 11

No more than 25' from any worker

front 12

How many ladders will you need for a 100' trench?

back 12

2 (25' from each end)

front 13

How far out of the trench should the ladder extend?

back 13

30"

front 14

When belled pipe is being installed, the bells are usually pointed in the direction that the work is heading except when the pipe is headed downhill, then the bell should?

back 14

Face uphill

front 15

How many feet from trench should the spoil bank be placed?

back 15

Minimum of 2 ft.

front 16

Excavations five feet or deeper must be?

back 16

Shored

front 17

Before doing any excavation work, you must?

back 17

Call for/Get Underground Locations

front 18

Any excavation or tank four feet or deeper is considered?

back 18

A Confined Space

front 19

Barricades with diagonal stripes must have the stripes?

back 19

Sloped toward traffic

front 20

When a pipeline changes direction or sizes, at dead ends, and when valves or hydrants are closed rapidly ______ must be installed?

back 20

Thrust Blocks

front 21

Water mains should be installed at least ______ horizontally from sewer mains.

back 21

10'

front 22

Water mains should be installed at least ______ higher than a sanitary sewer pipe.

back 22

1'

front 23

Surge Tanks are used to control?

back 23

Water Hammer

front 24

Where are air relief valves located in a distribution system?

back 24

At High Points

front 25

Hydropneumatic tanks should be equipped with?

back 25

Relief Valves

front 26

What type of valve is located at a point that is below the hydraulic gradient?

back 26

Altitude Valve

front 27

When should storage tanks be taken out of service for maintenance?

back 27

During periods of low demand

front 28

How do you disinfect the interior of a storage facility?

back 28

Spray or brush interior with a 200-PPM Cl₂ Solution

front 29

What is the minimum chlorine dosage to disinfect a newly installed main?

back 29

25 mg/L for 24 hours

front 30

The most commonly used joints on installed pipes are?

back 30

Push on joints

front 31

When should fire hydrants be inspected and serviced?

back 31

Twice a year

front 32

Where is the operating valve located in a dry barrel fire hydrant?

back 32

At the bottom

front 33

Distribution mains should be installed in a ог design to avoid dead ends?

back 33

Grid or Looped System:

front 34

What is a wet tap?

back 34

Installation/tap made under pressure

front 35

When a pipeline has been installed, the first layer of backfill is compacted to which point?

back 35

Up to the horizontal centerline of the pipe

front 36

A newly installed main is tested at a pressure higher than expected operating pressure or ________ psi for 24 hours?

back 36

50%, 250 PSI

front 37

What is measured after the completion of the pressure test?

back 37

Water loss or leakage

front 38

What is the chief purpose for of storage tanks?

back 38

To meet peak hourly demand