100%.
The bucket's maximum capacity when the material is heaped above the edges of the bucket is
correct answers heaped
The contents of the bucket when it is filled to the level of the rim. No material is heaped over the
rims, is correct answers struck
Struck capacity is correct answers level
Heaped capacity is correct answers above the rim
How is a load factor calculated correct answers bank volume / bank volume + swell percentage
Co. vol. = correct answers L x W x D / 27
What is the advantage of a U-blade versus a Semi-U blade? correct answers holds more material
(40%)
What piece of equipment is a good choice if you have a wide trench with no crosslines? correct
answers Sheeps foot roller
The later the pipe diameter, the smaller the fall requirement is needed to maintain a water
velocity great enough to prevent correct answers solids from settling out
A ____________ stake is a small stake driven into the ground to identify a particular reference
point. correct answers 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? correct answers both horizontal
What percent slope rises at a 45 degree angle? correct answers 100%
Excavate _______ trenches around a tree deep enough to cut through the root system of the tree.
correct answers 4
________ is the easiest type of rock to rip. correct answers rippable sedimentary
The level of the groundwater is known as the ________. correct answers water table
Well points work well in ________ soils. correct answers course grain or sandy
How do you calculate time to excavate a set? correct answers 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. correct
answers swell or spoils or loose volume
What is the purpose of a tench box? correct answers 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 ________. correct answers 5' above pipe
________ is the best piece of equipment for working in mud or soft ground. correct answers tract
backhoe
________ is the method for testing soil density and does not require drilling. correct answers
nuclear density test
________ is the easiest compaction method. correct answers puddling or wetting the soil
Limited working room in excavations means ________. correct answers you can't easily use the
water necessary for wetting
To estimate earthwork, you need to ________. correct answers divide the area in sections
The term subgrade identifies ________. correct answers the surface elevation prior to placing
any surface material
The curving broken lines on a grading plan are ________ lines. correct answers contour
Widely spaced differing contour lines indicate ________ on a grading plan. correct answers
flatter area
Any self-loading scraper will be more productive in muddy soil when assisted by a ________.
correct answers dozer pushing on the push blocks at the rear of the bowl
What is the hardest part of grader's work? correct answers finish blading
What type of dozer is used for fine grading, trench backfilling, landscaping, light logging, and
swamp dozing? correct answers light utility dozer
If the operator fails to lift, tilt, and angle the blade just ________. correct answers most of the
load is lost
Align the direction of dozer travel with the ________ whenever possible. correct answers blade
dump area
________ dozing increases the dozer blade capacity and adds to the pushing force. correct
answers downgrade
, You can reduce the amount of lost load by ________. This keeps the load from slipping away.
correct answers slot dozing
Which equipment is best for digging trenches 8' or less? correct answers wheeled backhoe
An employer is responsible for all medical services except ________. correct answers portable
defibrillator
An adequate supply of ________ water clearly marked shall be provided for drinking. correct
answers potable
Common drinking cups are ________. correct answers forbidden
For 20 or less employees, ________ number of toilet facilities are to be provided. correct
answers 1
Employees whose vision requires corrective lenses shall ________. correct answers wear
goggles that can be worn over corrective spectacles
Who will furnish all respirator equipment needed? correct answers employer
Travel distance from any point to the nearest fire extinguisher shall not exceed ________. correct
answers 3,000 square feet
No more than ________ of flammable or combustible liquid shall be stored in a room outside of
an approved storage cabinet. correct answers 25 gallons
Bundled bricks shall not be stacked more than ________ in height. correct answers 7'
When loose, the brick stacks that reach 4' should be tapered back ________. correct answers 2'
every foot of height above 4' level
Used lumber shall have all nails withdrawn before stacked and shall not be stacked over
________ in height. correct answers 20'
Rigging equipment will be inspected prior to use and ________. correct answers removed from
service if found to be defective
If debris is dropped more than ________ to any point outside the exterior walls of a building, any
enclosed chute of wood or cloth shall be used. correct answers 20'
Handheld power tools shall be equipped with a ________ switch that will shut off the power
when pressure is released. correct answers pressure switch
Guards shall be used at all times on all portable, power-driven ________. correct answers tools