Residential Contractor Tennessee Exam
Questions & Answers
The bucket's maximum capacity when the material is heaped above the edges of the bucket is -
ANSWERSheaped
The contents of the bucket when it is filled to the level of the rim. No material is heaped over
the rims, is - ANSWERSstruck
Struck capacity is - ANSWERSlevel
Heaped capacity is - ANSWERSabove the rim
How is a load factor calculated - ANSWERSbank volume / bank volume + swell percentage
Co. vol. = - ANSWERSL x W x D / 27
What is the advantage of a U-blade versus a Semi-U blade? - ANSWERSholds more material
(40%)
What piece of equipment is a good choice if you have a wide trench with no crosslines? -
ANSWERSSheeps foot roller
The later the pipe diameter, the smaller the fall requirement is needed to maintain a water
velocity great enough to prevent - ANSWERSsolids from settling out
,A ____________ stake is a small stake driven into the ground to identify a particular reference
point. - ANSWERShubs
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? - ANSWERSboth horizontal
What percent slope rises at a 45 degree angle? - ANSWERS100%
Excavate _______ trenches around a tree deep enough to cut through the root system of the
tree. - ANSWERS4
________ is the easiest type of rock to rip. - ANSWERSrippable sedimentary
The level of the groundwater is known as the ________. - ANSWERSwater table
Well points work well in ________ soils. - ANSWERScourse grain or sandy
How do you calculate time to excavate a set? - ANSWERSDivide 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. -
ANSWERSswell or spoils or loose volume
What is the purpose of a tench box? - ANSWERSto support a wall of soil
The trench box must be centered over the pipe. To maintain safety, the maximum height above
the pipe to install the trench box is ________. - ANSWERS5' above pipe
, ________ is the best piece of equipment for working in mud or soft ground. - ANSWERStract
backhoe
________ is the method for testing soil density and does not require drilling. - ANSWERSnuclear
density test
________ is the easiest compaction method. - ANSWERSpuddling or wetting the soil
Limited working room in excavations means ________. - ANSWERSyou can't easily use the water
necessary for wetting
To estimate earthwork, you need to ________. - ANSWERSdivide the area in sections
The term subgrade identifies ________. - ANSWERSthe surface elevation prior to placing any
surface material
The curving broken lines on a grading plan are ________ lines. - ANSWERScontour
Widely spaced differing contour lines indicate ________ on a grading plan. - ANSWERSflatter
area
Any self-loading scraper will be more productive in muddy soil when assisted by a ________. -
ANSWERSdozer pushing on the push blocks at the rear of the bowl
What is the hardest part of grader's work? - ANSWERSfinish blading
What type of dozer is used for fine grading, trench backfilling, landscaping, light logging, and
swamp dozing? - ANSWERSlight utility dozer
Questions & Answers
The bucket's maximum capacity when the material is heaped above the edges of the bucket is -
ANSWERSheaped
The contents of the bucket when it is filled to the level of the rim. No material is heaped over
the rims, is - ANSWERSstruck
Struck capacity is - ANSWERSlevel
Heaped capacity is - ANSWERSabove the rim
How is a load factor calculated - ANSWERSbank volume / bank volume + swell percentage
Co. vol. = - ANSWERSL x W x D / 27
What is the advantage of a U-blade versus a Semi-U blade? - ANSWERSholds more material
(40%)
What piece of equipment is a good choice if you have a wide trench with no crosslines? -
ANSWERSSheeps foot roller
The later the pipe diameter, the smaller the fall requirement is needed to maintain a water
velocity great enough to prevent - ANSWERSsolids from settling out
,A ____________ stake is a small stake driven into the ground to identify a particular reference
point. - ANSWERShubs
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? - ANSWERSboth horizontal
What percent slope rises at a 45 degree angle? - ANSWERS100%
Excavate _______ trenches around a tree deep enough to cut through the root system of the
tree. - ANSWERS4
________ is the easiest type of rock to rip. - ANSWERSrippable sedimentary
The level of the groundwater is known as the ________. - ANSWERSwater table
Well points work well in ________ soils. - ANSWERScourse grain or sandy
How do you calculate time to excavate a set? - ANSWERSDivide 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. -
ANSWERSswell or spoils or loose volume
What is the purpose of a tench box? - ANSWERSto support a wall of soil
The trench box must be centered over the pipe. To maintain safety, the maximum height above
the pipe to install the trench box is ________. - ANSWERS5' above pipe
, ________ is the best piece of equipment for working in mud or soft ground. - ANSWERStract
backhoe
________ is the method for testing soil density and does not require drilling. - ANSWERSnuclear
density test
________ is the easiest compaction method. - ANSWERSpuddling or wetting the soil
Limited working room in excavations means ________. - ANSWERSyou can't easily use the water
necessary for wetting
To estimate earthwork, you need to ________. - ANSWERSdivide the area in sections
The term subgrade identifies ________. - ANSWERSthe surface elevation prior to placing any
surface material
The curving broken lines on a grading plan are ________ lines. - ANSWERScontour
Widely spaced differing contour lines indicate ________ on a grading plan. - ANSWERSflatter
area
Any self-loading scraper will be more productive in muddy soil when assisted by a ________. -
ANSWERSdozer pushing on the push blocks at the rear of the bowl
What is the hardest part of grader's work? - ANSWERSfinish blading
What type of dozer is used for fine grading, trench backfilling, landscaping, light logging, and
swamp dozing? - ANSWERSlight utility dozer
