Module 1

Question 1

What are the two descriptions of bucket capacities?

Answer 1

Heaped and Struck

Question 2

The maximum capacity of the bucket with material heaped above the edges

Answer 2

Heaped capacity

Question 3

The capacity of a bucket filled to the level of the rim- water carrying capacity

Answer 3

Struck capacity

Question 4

The factor used to compensate for the swell of soil volume

Answer 4

Load factor

Question 5

The formula for load factor is

Answer 5

bank volume /bank volume+swell %

Question 6

The formula for compacted volume of material is

Answer 6

Bank Volume -shrinkage%=compacted CY volume

Question 7

A ____________ roller is effective in compacting a wide trench that has no crosslines

Answer 7

Sheepsfoot

Question 8

A __________ roller is effective in a narrow trench and for compacting around crosslines

Answer 8

Hoe- mounted vibratory

Question 9

A ________ is a small stake driven into the ground to identify a reference point

Answer 9

Hub

Question 10

The distance shown on the reference stake is a horizontal distance from the hub to the ______ or ________ to begin

Answer 10

Cut or fill

Question 11

_________ rise is expressed in units compared to a _________ distance of 100 units

Answer 11

Vertical and Horizontal
a 5% slope will rise 5 vertical feet in a horizontal distance of 100 ft

Question 12

A __________ angle is a 100% slope

Answer 12

45
if the rise is equal to the run, the slope is 100%

Question 13

To calculate slope as a percent, divide_______ by the the ___________

Answer 13

Vertical rise by the horizontal distance

Question 14

The level of the underground water is known as the ___________

Answer 14

Water table

Question 15

The water table varies in depth from ____________

Answer 15

Season to season

Question 16

Groundwater creates problems for the utility contractor as it ________

Answer 16

Creates unstable soil that is dangerous to work in and cannot be used as backfill

Question 17

A ________ can be used to lower the groundwater table in bad groundwater conditions

Answer 17

well point system

Question 18

A _____ is the length of a trench a backhoe can excavate in one position

Answer 18

Set

Question 19

A set can be further broken down into ____________

Answer 19

Digging cycles

Question 20

To calculate the time required to excavate a set divide_______

Answer 20

Volume of dirt in set/dirt removed per cycle= digging cycles per set
Digging cycles per set Average cycle time= time required to excavate a set

Question 21

To calculate backhoe production rates, the ________ of the bucket must be considered

Answer 21

Heaped capacity

Question 22

The two most common methods of compaction are ____ and _____

Answer 22

Puddling (water settling- washed gravel or sand) and a combination of weight and vibration

Question 23

________ is the easiest compaction method

Answer 23

Puddling

Question 24

Manholes are used to _______

Answer 24

Change direction of Iines and at intersections of lines from different directions

Question 25

Push scrapers are used on _________

Answer 25

extremely large earth moving projects

Question 26

A self loading scraper is more productive in hard or muddy soil when assisted ________

Answer 26

By a dozer pushing on the push blocks at the rear of the bowl

Question 27

Road graders work to very close tolerances and are used primarily for _______

Answer 27

trimming the cut and fill area and processing material

Question 28

______________ is the hardest part of a graders work

Answer 28

Finish blading

Question 29

_______ can be used for light clearing and grubbing, maintaining haul roads and finish grading

Answer 29

Graders

Question 30

__________ uses are residential/commercial foundations, fine grading, trench backfill, landscaping, light logging, swamp dozing

Answer 30

Light utility dozer

Question 31

________ dozer applications include trench backfill, logging, road building, land leveling, light duty ripping, tree and stump removal, and short distance production dozing

Answer 31

Mid-sized production

Question 32

_______ dozer applications include production dozing, ripping, push scrapper work and road building

Answer 32

Heavyweight

Question 33

If a dozer operator does not lift, tilt and angle the blade properly most of the load ______

Answer 33

will be lost before getting to its destination

Question 34

_______ convert engine power and machine weight more efficiently than rubber tires on dirt surfaces

Answer 34

Crawler tracks

Question 35

A _____ will work in soft soil while a ____ will bog down

Answer 35

track dozer ; wheeled machine

Question 36

There are two common dozer blade positions ________ and _________

Answer 36

Dozing position- blade at 90 degrees to the line of travel and angle dozing position

Question 37

Whenever possible, align the the direction of dozer travel with the ___

Answer 37

Blade dump area

Question 38

Rows of spoil created by part of a load lost off the blade of a dozer are called _______

Answer 38

windrows

Question 39

You can reduce the amount of load lost while dozing by _________

Answer 39

slot dozing

Question 40

"A" blade dozing allows the dozer to ___________

Answer 40

sidecast material and position it at 90 degrees to the line of travel

Question 41

A ________ grade is an uphill slope

Answer 41

Positive

Question 42

A _______ grade is a downhill slope

Answer 42

Negative

Question 43

The blade load capacity of a dozer _____ when a load is pushed down a negative slope of 40 degrees

Answer 43

Doubles

Question 44

The blade load capacity of a dozer _____ when a load is pushed up a positive slope of 40 degrees

Answer 44

Is cut in half

Question 45

The contractor shall submit a blasting plan to the engineer within _______ after each shot.

Answer 45

24 hours after

Question 46

_________ is a condition of wrinkling, bubbling or ridging turf following installation

Answer 46

Buckling

Question 47

The test for septic systems to determine the soil is ________

Answer 47

Perk test (percolation test)

Question 48

_________ is the loosening of soil

Answer 48

Swell