Shared Flashcard Set

Details

3E251 CDC
Set A Volume III
80
Engineering
Professional
04/17/2013

Additional Engineering Flashcards

 


 

Cards

Term
How many ways are used to grade asphalt cement ?
Definition
3
Term
Which of the following equipment is used to measure binder properties at low temperature ?
Definition
BBR
Term
Today's asphalt cement is graded to ?
Definition
Performance Grade
Term
Mixing asphalt cement with what material produces medium curing cutbacks ?
Definition
Kerosene
Term
What is the only asphalt material produced in the viscosity grade of 30 ?
Definition
MC
Term
What type of asphalt emulsion has little or no ability to mix with an aggregate ?
Definition
RS
Term
Which of the following types of asphalt emulsions have been developed for slurry seals ?
Definition
QS
Term
Which of these materials can be used with damp aggregate ?
Definition
Asphalt Emulsion
Term
What is the area of a square that measures 22' by 22' ?
Definition
484 Square feet
Term
What is the area of a circle that has a diameter of 16 feet ?
Definition
200.96 sq.ft.
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 ?
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.
Term
What is 120.25 tons converted to metric tons ?
Definition
109.09mt
(120.25 x .9072)
Term
Bituminous surfaces must be constructed on bases that are reasonably dry and free from...
Definition
Caked mud or dust
Term
Bituminous construction normally should be suspended when the temp goes below...
Definition
50 Degrees
Term
Which of the following is NOT a purpose of prime coat ?
Definition
Adheres an underlying pavement surface to a new surface.
Term
Because of environmental concerns, the best materials to be used as prime coat
are:
Definition
Emulsions
Term
What types of emulsions are used on the more granular or open-type bases ?
Definition
MS
Term
At what approximate rate should primers be applied with an asphalt distributor ?
Definition
.10-.25 gallons per square yard.
Term
Which of these materials is reccomended for tack coats ?
Definition
SS-1
Term
What is the most widely used type of flexible pavement construction?
Definition
Central plant mix
Term
What is the most accurate way of mixing a road mix ?
Definition
Travel Plant
Term
What shape should a load be when in the bed of a dump truck ?
Definition
Dome
Term
When spreading bituminous material by hand, you should be extremely careful to prevent:
Definition
Segregation
Term
Blade spreading operations to place bituminous materials usually result in :
Definition
Poor Edges
Term
One advantage of a bituminous paver over a motor graderis that the paver...
Definition
Uses less spreading time.
Term
The maximum speed of a steel-wheeled roller should be:
Definition
3mph
Term
Breakdown rolling is best done with:
Definition
Steel-wheeled rollers
Term
Where should the breakdown rolling begin ?
Definition
The low side
Term
How far from the lower unsupported egde should the rolling process start for thick lift construction ?
Definition
12 to 15 "
Term
Under which of the following instances would you operate the steel-wheel roller with the tiller wheel forward ?
Definition
The grade is excessive
Term
How many coverages should be made with the pneumatice-tired roller during intermediate rolling ?
Definition
At least 3
Term
Finish rolling is done soley to:
Definition
Improve the surface
Term
What types of cracks are interconnected and form a series of small blocks resembling chicken wire ?
Definition
Alligator
Term
Normally, edge cracks are aggrevated by:
Definition
Lack of side or shoulder support
Term
What type of crack in flexible pavement is caused by a lack of bond between the surface layer and the course beneath?
Definition
Slippage
Term
Where do corrogations in flexible pavement normally occur ?
Definition
At points where traffic brakes and accelerates
Term
Which of the following is a cause of depressions in flexible pavement ?
Definition
Poor construction methods
Term
The progressive loss of surface material from flexible pavement by traffic abrasion is called...
Definition
Raveling
Term
What is the most common cause of a slippery flexible pavement ?
Definition
Thin film of water
Term
Bleeding in flexible pavement normally occurs in:
Definition
Hot weather
Term
When should flexible pavements be inspected ?
Definition
Spring and fall
Term
During the inspection of flexible pavemtns you should try to determine...
Definition
The cause of the failure
Term
Which of the following types of sealer can be used satisfactorily with most types of asphalt ?
Definition
SS-S-1401
Term
Small and meduim cracks in flexible pavement can be sealed individually with a:
Definition
Prepared joint sealer
Term
Large cracks in pavement are repaired in the same way as:
Definition
Potholes
Term
What item is used to force sealing material into the cracks of flexible pavements ?
Definition
Squeegee
Term
Which item should you use to mark defects in flexible pavement ?
Definition
Crayon
Term
As you mark an area for removal of defective pavement how far into the pavement should you make your marks ?
Definition
12 inches
Term
When removing defective flexible pavement, you should remove base course materials until:
Definition
You reach firm, dry, material.
Term
When repairing defective flexible pavement, you should place and compact the base course materials in:
Definition
2"-3" layers
Term
What is the final step in the preparation of a hole for flexible pavement repair ?
Definition
Apply a tack coat to the vertical faces
Term
When should the rolling operation for pavement repair using hotmix begin ?
Definition
Immediately after the material is placed.
Term
A completed flexible pavement patch should be level with the surrounding area or:
Definition
1/8 inch higher
Term
Surface treatments produce a pavement with a thickness of...
Definition
1 inch or less
Term
Which of the following is NOT a purpose of a bituminous surface treatment ?
Definition
Strengthen the surface
Term
What should be used to seal hairline cracks in flexible pavements ?
Definition
Fog Seal
Term
What type of surface treatment is used to seal surface voids in NEW asphalt plant mixes ?
Definition
Fog Seal
Term
As soon as the aggregate is spread for a single treatment, it is pushed into the soft asphalt by rolling it with a:
Definition
Pneumatic-tired roller
Term
About how much of the individual aggregate stones in a single surface treatment should be exposed to traffic ?
Definition
Half
Term
Which of the followiong materials can be used as a binder for a single surface treatment ?
Definition
RS-2
Term
The asphalt for a single surface treatment should be covered with aggregate within...
Definition
1 minute
Term
Each additional layer of aggregate for a multiple surface treatment should be about:
Definition
Half the size of the previous layer
Term
One purpose of an emulsion slurry seal is to:
Definition
Prevent moisture initrusion into the pavement
Term
A slurry seal is normaly applied:
Definition
1/8" to 1/4" thick
Term
Immediately before you apply a slurry, the pavement surface should be thoroughly cleaned, broomed, and:
Definition
moistened with a light application of water
Term
What type of road shoulder exists along narrow pavements, inside curves, and at intersections ?
Definition
Dual type
Term
Which type of fence is made of 3 strand barbed wire, 4ft high ?
Definition
B-1
Term
Which type of fence is made of concertina or razor wire ?
Definition
Type C
Term
What item is used to secure the drawbars to the end or terminal post ?
Definition
Offset band
Term
What item is used to extend the height of a security fence ?
Definition
Barbed wire
Term
When you are installing a security fence, at what maximum distance apart should you place line posts ?
Definition
10 feet
Term
How far into the ground should posts be ?
Definition
36 inches
Term
What type of wire should you use to secure the fence fabric to the line posts ?
Definition
9 gauge
Term
Footings for fence posts should be determined by:
Definition
What the post is used for
Term
What should be the diameter of the postholes for posts required to be set in concrete ?
Definition
10-12 inches
Term
Fence fabric should be 6 or 9 guage fabric with______ openings
Definition
2 inch mesh
Term
When you are building fences, where should you use tension wire ?
Definition
With fences that do not have a top rail
Term
Extention arms should be able to handle three strands of barbed wire spaced:
Definition
6 inches apart
Term
When must maintenance be done on security fencing ?
Definition
As needed
Term
Which of these defects in security fencing require maintenance ?
Definition
All of the above
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