Chapter 1

Question 1

To aid in identification, it is suggested that what be used?

Answer 1

Paints and flags

Question 2

Utility companies have adopted standard colors, what is the proper color for ELECTRICAL?

Answer 2

Red

Question 3

Utility companies have adopted standard colors, what is the proper color for Gas?

Answer 3

Yellow

Question 4

Utility companies have adopted standard colors, what is the proper color for WATER?

Answer 4

Blue

Question 5

Utility companies have adopted standard colors, what is the proper color for SEWER?

Answer 5

Green

Question 6

Utility companies have adopted standard colors, what is the proper color for PHONE,COMMUNICATION LINES?

Answer 6

Orange

Question 7

The bottom course of all walls should be what?

Answer 7

Buried below grade

Question 8

Excavation of a wide trench along the wall alignment will ease access problems. What do you use for excavation?

Answer 8

Skid-steer

Question 9

Never use what material for base, infill or backfill?

Answer 9

Pea Gravel

Question 10

What is a more costly substitute for railroad ties?

Answer 10

Treated wood/Landscape Timber

Question 11

Two common types of segmental units are called what?

Answer 11

Pinned and Lipped wall units

Question 12

What is missing using dry-laid stone?

Answer 12

Mortar

Question 13

Excavations maybe required in locations where walls are being placed. How many feet in front and behind wall to excavate?

Answer 13

2 feet/ 2 feet

Question 14

When excavation and unstable materials are encountered _______ should be removed and replaced with what?

Answer 14

Granular base

Question 15

Crushed stone that passes a what inch sieve is suitable for the second layer?

Answer 15

3/8 Inch

Question 16

Under the alignment of the footing, excavate and place a minimum of what inches of sand?

Answer 16

2 Inches

Question 17

Place drainage tile behind the wall, backfill with what?

Answer 17

Free-drainage angular backfill

Question 18

Wall failure can often be traced to what?

Answer 18

Hydrostatic (Water) Pressure

Question 19

Schedule 40 PVC pipes running completely through the base course of the wall every how many feet?

Answer 19

6 to 8 feet

Question 20

Openings in the PVC pipes are called what?

Answer 20

Weepholes

Question 21

Supplemental drainage is recommended in any type wall that exceeds how many feet in height?

Answer 21

6 to 8 Feet

Question 22

Backfill materials should be placed in lifts, or layers of no more that how many inches before compaction?

Answer 22

6 Inches

Question 23

What should be used in order to save a portion of the pavement?

Answer 23

Concrete Saw

Question 24

To effectively remove pavement using a jack hammer, what should be used?

Answer 24

Breaker Bar to score concrete

Question 25

Start the jack hammer removal by driving shallow indentation, how many inches apart?

Answer 25

4 Inches

Question 26

Burial pits should be covered with a minimum of how much soil?

Answer 26

5 Feet

Question 27

Healthy, wood plant material can be recycled by using what?

Answer 27

Using a chipper

Question 28

Grading is accomplished through a process called what?

Answer 28

Cutting and filling

Question 29

How much dirt would not be uncommon for a landscape contractor to move?

Answer 29

50 Cubic Yards

Question 30

When considering the grading portion of a project, the decision should be properly match a contractors what?

Answer 30

Equipment and capabilities

Question 31

What pieces of equipment would you use on a small site?

Answer 31

Skid-steer

Question 32

What kind of equipment is needed on a big job site?

Answer 32

Bull dozer or Scraper

Question 33

To complete to finish grading, how many steps of grading does it take?

Answer 33

6

Question 34

Another formula for calculating burial depth is to bury the base course how many inches for every foot of wall height?

Answer 34

1 Inch

Question 35

Many of the wall materials, particularly the unit wall materials, can be pinned to the subgrade using how long of rebars?

Answer 35

24 Inches

Question 36

Where should this 24 inch rebar driven through holes in the material and into what?

Answer 36

Base

Question 37

Batter can be built into a wall by tilting the base course slightly backward. How much fall from the front to back?

Answer 37

1/4"

Question 38

Standard for step-back range is how many inches for each foot of wall height?

Answer 38

1 to 2 inches

Question 39

How many types of anchors and what are they called?

Answer 39

3- verticals, deadmen, geogrid

Question 40

While design professionals can design walls of extreme heights, without the benefit of their expertise, the maximum wall height should be what?

Answer 40

4 Feet