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Grading Commercial Contractor questions and correct answers (elaborations) with 100% accurate , verified , latest fully updated , 2024/2025 ,already passed , graded a+, complete solutions guarantee distinctions rationales| 5-star rating
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Grading Commercial Contractor questions and correct answers (elaborations) with 100% accurate , verified , latest fully updated , 2024/2025 ,already passed , graded a+, complete solutions guarantee distinctions rationales| 5-star rating

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  • August 5, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • grading commercial contractor

Written for

  • Commercial Construction
  • Commercial Construction

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Grading Commercial Contractor
A grading contractor should check to ensure that the volumetric load on his trucks does not
cause a condition in which the load weight exceeds the ___capacity of his trailer or truck? -
ANS-a) Heaped volume
b) SAE 2:1
-c) Gravimetric
d) Struck volume

All of the following must be known to determine the compacting ability of pneumatic roller? -
ANS-a) tire size
b) tire ply
-c) tire manufacturer
d) tire pressure

ch.3 planning for earthwork, a grading contractor prepares a pan with a cost estimate that
includes all of the following attributes except? - ANS-a) Grades for haul segments
b) Haul distances
c) Quantities involved
-d) Condition of equipment

ch.3 what affects the suitability of soil? - ANS-a) Soil grain
c) Distribution of size
b) Texture of soil
-d) Both a and c

Compaction testing can be achieved with all accept methods except which of the following? -
ANS-a) Sand cone
b) Back scatter
c) Nuclear
-d) Knife

Dozer blades are equipped with all of the following except? - ANS-a) Moldboards
b) Cutting edge
-c) Tilt cylinders
d) Side bits

For better compaction with the use of vibrating type compactor _____? - ANS-a) Compact each
pass at 90%
-b) Never, try to operate equipment faster than you are capable of controlling it
c) Heavier vibration with fewer passes
d) Lighter vibrations with more passes

, For better compaction with the use of vibrating type compactor_____? - ANS-a) Compact each
pass at 90%
-b) Slower speed improves compaction
c) Heavier vibration with fewer passes
d) Lighter vibrations with more passes

How would a grading contractor detour water around the work area? - ANS-a) Begin his trench
upstream & excavate to the downstream end
-b) Begin his trench downstream & excavate to the upstream end
c) Begin trench in center & excavate to upstream end then start downstream end
d) Begin his trench upstream & excavate a downstream holding pond

If fifty cubic yards of soil is excavated and swells to fifty-five cubic yards, what is the percent of
swell? - ANS-a) 5%
- b) 10%
c) 100%
d) 500%

In cement-soil stabilization, the material should be compacted within ______ after it is mixed? -
ANS--a) 22 hour
b) 1 hour
c) 2 72 hours
d) 3 hours

Known as a pivotal movement about the point of connection between the dozer and it's blade is
called? - ANS-a) Angling
-b) Pitch
c) Tar
d) Tilt

Maximum grader slope is what for a motor grader? - ANS-a) 1:1
b) 2:1
-C) 3:1
d) 4:1

Plastic skirts are flexible plastic cords and work well when a grader is trimming because they will
pop-up with each pass. What do you call one that uncovers the skirt? - ANS-a) Laborer
b) Assistant
c) Rod-man
-d) Guinea hopper

Scrapers types are classified according to the number of power axles or by what? - ANS--a)
Cost

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