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 mate-
rial (40%)
What piece of equipment is a good choice if you have a wide trench with no crosslines? -
ANSWER Sheeps foot roller
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 refer-
ence point. - ANSWER hubs
1
,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. - AN-
SWER swell or spoils or loose volume
What is the purpose of a tench box? - ANSWER to 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 ________. - ANSWER 5' above pipe
________ is the best piece of equipment for working in mud or soft ground. - ANSWER
tract backhoe
2
, ________ 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
What type of dozer is used for fine grading, trench backfilling, landscaping, light logging, and
swamp dozing? - ANSWER light utility dozer
If the operator fails to lift, tilt, and angle the blade just ________. - ANSWER most of the
load is lost
3
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 mate-
rial (40%)
What piece of equipment is a good choice if you have a wide trench with no crosslines? -
ANSWER Sheeps foot roller
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 refer-
ence point. - ANSWER hubs
1
,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. - AN-
SWER swell or spoils or loose volume
What is the purpose of a tench box? - ANSWER to 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 ________. - ANSWER 5' above pipe
________ is the best piece of equipment for working in mud or soft ground. - ANSWER
tract backhoe
2
, ________ 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
What type of dozer is used for fine grading, trench backfilling, landscaping, light logging, and
swamp dozing? - ANSWER light utility dozer
If the operator fails to lift, tilt, and angle the blade just ________. - ANSWER most of the
load is lost
3
