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Residential Contractor Tennessee Exam Study Guide Questions and Answers The bucket's maximum capacity when the material is heaped above the edges of the bucket is - ANSWER-heaped The contents of the bucket when it is filled to the level of the rim. No material is heaped over the rims, is - AN...

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  • November 13, 2024
  • 30
  • 2024/2025
  • Exam (elaborations)
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Residential Contractor Tennessee
Exam Study Guide Questions and
Answers

The bucket's maximum capacity when the material is heaped above the edges of the

bucket is - ANSWER✔✔-heaped


The contents of the bucket when it is filled to the level of the rim. No material is heaped

over the rims, is - ANSWER✔✔-struck


Struck capacity is - ANSWER✔✔-level


Heaped capacity is - ANSWER✔✔-above the rim


How is a load factor calculated - ANSWER✔✔-bank volume / bank volume + swell

percentage


Co. vol. = - ANSWER✔✔-L x W x D / 27


What is the advantage of a U-blade versus a Semi-U blade? - ANSWER✔✔-holds more

material (40%)


What piece of equipment is a good choice if you have a wide trench with no crosslines?

- ANSWER✔✔-Sheeps foot roller
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,The later the pipe diameter, the smaller the fall requirement is needed to maintain a

water velocity great enough to prevent - ANSWER✔✔-solids from settling out


A ____________ stake is a small stake driven into the ground to identify a particular

reference point. - ANSWER✔✔-hubs


If a reference stake is 20.2' from the Hub and fill is to be started at a distance of 12.4'

from the Hub, how are these distances measured? - ANSWER✔✔-both horizontal


What percent slope rises at a 45 degree angle? - ANSWER✔✔-100%


Excavate _______ trenches around a tree deep enough to cut through the root system of

the tree. - ANSWER✔✔-4


________ is the easiest type of rock to rip. - ANSWER✔✔-rippable sedimentary


The level of the groundwater is known as the ________. - ANSWER✔✔-water table


Well points work well in ________ soils. - ANSWER✔✔-course grain or sandy


How do you calculate time to excavate a set? - ANSWER✔✔-Divide the volume of dirt

in the set by the dirt moved per cycle; multiply the number of digging cycles by the

average cycle time


When dirt is moved form its natural state, this is called ________ or loose condition. -

ANSWER✔✔-swell or spoils or loose volume


What is the purpose of a tench box? - ANSWER✔✔-to support a wall of soil

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Page 2/30

, The trench box must be centered over the pipe. To maintain safety, the maximum height

above the pipe to install the trench box is ________. - ANSWER✔✔-5' above pipe


________ is the best piece of equipment for working in mud or soft ground. -

ANSWER✔✔-tract backhoe


________ is the method for testing soil density and does not require drilling. -

ANSWER✔✔-nuclear density test


________ is the easiest compaction method. - ANSWER✔✔-puddling or wetting the soil


Limited working room in excavations means ________. - ANSWER✔✔-you can't easily

use the water necessary for wetting


To estimate earthwork, you need to ________. - ANSWER✔✔-divide the area in sections


The term subgrade identifies ________. - ANSWER✔✔-the surface elevation prior to

placing any surface material


The curving broken lines on a grading plan are ________ lines. - ANSWER✔✔-contour


Widely spaced differing contour lines indicate ________ on a grading plan. -

ANSWER✔✔-flatter area


Any self-loading scraper will be more productive in muddy soil when assisted by a

________. - ANSWER✔✔-dozer pushing on the push blocks at the rear of the bowl


What is the hardest part of grader's work? - ANSWER✔✔-finish blading

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