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How many ways are used to grade asphalt cement ? |
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Which of the following equipment is used to measure binder properties at low temperature ? |
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Today's asphalt cement is graded to ? |
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Mixing asphalt cement with what material produces medium curing cutbacks ? |
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What is the only asphalt material produced in the viscosity grade of 30 ? |
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Term
What type of asphalt emulsion has little or no ability to mix with an aggregate ? |
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Term
Which of the following types of asphalt emulsions have been developed for slurry seals ? |
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Which of these materials can be used with damp aggregate ? |
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Term
What is the area of a square that measures 22' by 22' ? |
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Definition
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Term
What is the area of a circle that has a diameter of 16 feet ? |
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Definition
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Term
How many tons of hotmix asphalt will be required for a project that measures 20' x 35' x 6" deep, including 5% extra for low spots ? |
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Definition
25.73 Tons
Cu.ft x 140 lbs/cuft = 49,000 lbs 49,000lbs = 24.5tons. Add 5% and round up to nearest hundreth. |
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Term
What is 120.25 tons converted to metric tons ? |
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Definition
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Term
Bituminous surfaces must be constructed on bases that are reasonably dry and free from... |
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Definition
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Term
Bituminous construction normally should be suspended when the temp goes below... |
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Definition
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Term
Which of the following is NOT a purpose of prime coat ? |
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Definition
Adheres an underlying pavement surface to a new surface. |
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Term
Because of environmental concerns, the best materials to be used as prime coat are: |
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Definition
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Term
What types of emulsions are used on the more granular or open-type bases ? |
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Definition
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Term
At what approximate rate should primers be applied with an asphalt distributor ? |
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Definition
.10-.25 gallons per square yard. |
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Term
Which of these materials is reccomended for tack coats ? |
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Definition
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Term
What is the most widely used type of flexible pavement construction? |
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Definition
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Term
What is the most accurate way of mixing a road mix ? |
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Definition
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Term
What shape should a load be when in the bed of a dump truck ? |
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Definition
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Term
When spreading bituminous material by hand, you should be extremely careful to prevent: |
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Definition
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Term
Blade spreading operations to place bituminous materials usually result in : |
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Definition
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Term
One advantage of a bituminous paver over a motor graderis that the paver... |
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Definition
Uses less spreading time. |
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Term
The maximum speed of a steel-wheeled roller should be: |
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Definition
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Term
Breakdown rolling is best done with: |
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Definition
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Term
Where should the breakdown rolling begin ? |
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Definition
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Term
How far from the lower unsupported egde should the rolling process start for thick lift construction ? |
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Definition
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Term
Under which of the following instances would you operate the steel-wheel roller with the tiller wheel forward ? |
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Definition
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Term
How many coverages should be made with the pneumatice-tired roller during intermediate rolling ? |
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Definition
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Term
Finish rolling is done soley to: |
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Definition
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Term
What types of cracks are interconnected and form a series of small blocks resembling chicken wire ? |
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Definition
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Term
Normally, edge cracks are aggrevated by: |
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Definition
Lack of side or shoulder support |
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Term
What type of crack in flexible pavement is caused by a lack of bond between the surface layer and the course beneath? |
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Definition
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Term
Where do corrogations in flexible pavement normally occur ? |
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Definition
At points where traffic brakes and accelerates |
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Term
Which of the following is a cause of depressions in flexible pavement ? |
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Definition
Poor construction methods |
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Term
The progressive loss of surface material from flexible pavement by traffic abrasion is called... |
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Definition
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Term
What is the most common cause of a slippery flexible pavement ? |
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Definition
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Term
Bleeding in flexible pavement normally occurs in: |
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Definition
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Term
When should flexible pavements be inspected ? |
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Definition
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Term
During the inspection of flexible pavemtns you should try to determine... |
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Definition
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Term
Which of the following types of sealer can be used satisfactorily with most types of asphalt ? |
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Definition
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Term
Small and meduim cracks in flexible pavement can be sealed individually with a: |
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Definition
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Term
Large cracks in pavement are repaired in the same way as: |
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Definition
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Term
What item is used to force sealing material into the cracks of flexible pavements ? |
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Definition
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Term
Which item should you use to mark defects in flexible pavement ? |
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Definition
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Term
As you mark an area for removal of defective pavement how far into the pavement should you make your marks ? |
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Definition
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Term
When removing defective flexible pavement, you should remove base course materials until: |
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Definition
You reach firm, dry, material. |
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Term
When repairing defective flexible pavement, you should place and compact the base course materials in: |
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Definition
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Term
What is the final step in the preparation of a hole for flexible pavement repair ? |
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Definition
Apply a tack coat to the vertical faces |
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Term
When should the rolling operation for pavement repair using hotmix begin ? |
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Definition
Immediately after the material is placed. |
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Term
A completed flexible pavement patch should be level with the surrounding area or: |
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Definition
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Term
Surface treatments produce a pavement with a thickness of... |
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Definition
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Term
Which of the following is NOT a purpose of a bituminous surface treatment ? |
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Definition
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Term
What should be used to seal hairline cracks in flexible pavements ? |
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Definition
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Term
What type of surface treatment is used to seal surface voids in NEW asphalt plant mixes ? |
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Definition
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Term
As soon as the aggregate is spread for a single treatment, it is pushed into the soft asphalt by rolling it with a: |
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Definition
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Term
About how much of the individual aggregate stones in a single surface treatment should be exposed to traffic ? |
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Definition
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Term
Which of the followiong materials can be used as a binder for a single surface treatment ? |
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Definition
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Term
The asphalt for a single surface treatment should be covered with aggregate within... |
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Definition
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Term
Each additional layer of aggregate for a multiple surface treatment should be about: |
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Definition
Half the size of the previous layer |
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Term
One purpose of an emulsion slurry seal is to: |
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Definition
Prevent moisture initrusion into the pavement |
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Term
A slurry seal is normaly applied: |
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Definition
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Term
Immediately before you apply a slurry, the pavement surface should be thoroughly cleaned, broomed, and: |
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Definition
moistened with a light application of water |
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Term
What type of road shoulder exists along narrow pavements, inside curves, and at intersections ? |
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Definition
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Term
Which type of fence is made of 3 strand barbed wire, 4ft high ? |
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Definition
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Term
Which type of fence is made of concertina or razor wire ? |
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Definition
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Term
What item is used to secure the drawbars to the end or terminal post ? |
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Definition
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Term
What item is used to extend the height of a security fence ? |
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Definition
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Term
When you are installing a security fence, at what maximum distance apart should you place line posts ? |
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Definition
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Term
How far into the ground should posts be ? |
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Definition
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Term
What type of wire should you use to secure the fence fabric to the line posts ? |
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Definition
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Term
Footings for fence posts should be determined by: |
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Definition
What the post is used for |
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Term
What should be the diameter of the postholes for posts required to be set in concrete ? |
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Definition
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Term
Fence fabric should be 6 or 9 guage fabric with______ openings |
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Definition
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Term
When you are building fences, where should you use tension wire ? |
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Definition
With fences that do not have a top rail |
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Term
Extention arms should be able to handle three strands of barbed wire spaced: |
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Definition
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Term
When must maintenance be done on security fencing ? |
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Definition
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Term
Which of these defects in security fencing require maintenance ? |
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Definition
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