Pipe and Excavation

Question 1

Another facet of soil swell

Answer 1

Pg 66

Load factor
(bank volume) / (bank volume plus swell percentage)

Question 2

The advantage of a U blade over an S blade is

Answer 2

Pg 85 and 90

Holds more material

Question 3

Best piece of vibratory compaction equipment in situations where you have a wide trench and no cross lines: ______ _____

Answer 3

Pg 192

Sheepsfoot roller

Question 4

A reference stake is 18.8’ from the hub, fill is to be started at a distance of 8.4’ from the hub. Distances are measured: ______

Answer 4

Pg 114,115

Both measured horizontally

Question 5

The percent of a slope which rises at a 45* angle is _____

Answer 5

Pg 119

100%

Question 6

Easiest type of rock to rip:

Answer 6

Pg 279

Sedmentary

Question 7

Level of underground water:

Answer 7

Pg 290

Water table

Question 8

Soil that has the MAX amount of water it can hold

Answer 8

Pg 290

Saturated

Question 9

Best type of equipment to use when digging a trench in soft soil

Answer 9

Pg 174

Tracked backhoe

Question 10

The amount of water required for a given soil to reach maximum density is known as the

Answer 10

Pg 182

Optimum moisture content

Question 11

The advantage of Nuclear compaction testing:

Answer 11

Pg 185

Can test without removing soil from the site

Question 12

Type of soil compaction test that requires no drilling

Answer 12

Pg 185

Nuclear

Question 13

The easiest compaction method:

Answer 13

Pg 187

Puddling

Question 14

The type of soil that can be excavated with vertical side slopes remaining intact

Answer 14

Pg 297

Stable rock

Question 15

The term sub-grade identifies

Answer 15

Pg 257/349

The surface elevation prior to placing surface material

Question 16

Increases the productivity of a self-loading scraper in muddy soil:

Answer 16

Pg 90/88/365

A dozer pushing on the push blocks at the rear of the bowl

Question 17

The hardest part of the grader’s work

Answer 17

Pg 88

Finish blading

Question 18

Type of blade to be used when pushing soil over long distances

Answer 18

Pg 85

U-shaped

Question 19

Advantage of using an angled blade over a straight blade

Answer 19

Pg 89

Sidecast material

Question 20

The effect of loading uphill using a scraper

Answer 20

Pg 92

Increases cycle time

Question 21

To find the load factor

Answer 21

Bank volume / (bank volume + swell %)

Question 22

What is the load factor of a soil that swells by 25%

Answer 22

0.80
1 LCY / 1.25 LCY

Question 23

What is the hardest part of a grader’s work?

Answer 23

Finish blading

Question 24

What is the easiest soil compaction method?

Answer 24

Puddling