A Set Volume 3
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how many ways are used to grade asphalt cement?
which of the followin equipment is used to measure binder properties at low temps?
todays asphalt cements are graded according to ?
mixing asphalt cement with what material produces medium curing cutback?
what is the only asphalt material produced in the viscosity grade of 30?
what type of asphalt emulsion has little or no ability to mix with an agregate?
which of the following types of asphalt emulsions have been developed for slurry seals
which of these materials can be used with damp agregate?
bitinius surfaces must be constructed on bases that are reasonably dry and free from __?
caked mud or dust
bitinius construction normally should be suspended go below ___
which of the following is not a purpose of a prime coat?
hardeneds the surface
waterproofs the surface
bonds loose soil particles
adheres an underlyin paving surface to a new surface
adheres an underlying paving surface to a new surface
because of enviromental concerns the best materials to be used as prime coats are __?
what types of emulsions are used on the more granular or open type bases?
at what approximate rate should primers be applied with an asphalt distributor?
0.10 - to 0.25 gallons per square yard
which of these materials is recommended for tack coats?
SS - 1
what is the most widely used type of flexible pavement construction?
central plant mix
what is the most accurate way of mixing road mix?
what shape should a load of hot mix asphalt have in the bed of a dump truck?
when spreading bitinious materials by hand, you should be extremely careful to prevent ?
blade spreading operations to place bitinious materials usually result in __
what advantage of bitumious paver over a motor grader is that the butumious paver ___
uses less spreading time
the maximum speed of steel wheel rolled rollers should not exceed __
break down rolling is best done with ____
steel wheeeled rolllers
where should the break down rolling start?
the low side
how far from the lower unsupported edge should the rolling process start for thick lift construction?
12 to 15 inches
under which of the following conditions would you operate the steel wheeled roller with the tiller wheel forward?
the grade is excessive
how many coverages should be made with the pneumatic tired roller during the intermediate rolling?
at least 3
finish rolling is done solely to
improve the surface
what types of cracks are inter connected and form a series of small blocks resembling chicken wire?
normally edge cracks are aggrevated by __
lack of side or shoulder support
what type of crack in flexible pavement is caused by a lack of bond between the surface layer and the course beneath?
where do corrogations in flexible pavement normallly occur?
at points where traffic breaks and accelerates
which of the following is a cause of depressions in flexible pavement?
poor construction methods
the progressive loss of surface material from flexible pavement by traffic abrasion is called ___
what is the most common cause of a slippery flexible pavement?
thin film of water
bleeding in flexible pavement normallly occurs in
when should flexible pavement be inspected?
spring and fall
during an inspection of flexible pavements you should try to determine ____
the cause of the failure
which of the folllowin types of sealer can be used satisfactorily with most types of asphalt pavements?
SS - S - 1401
small and medium cracks in flexible pavement can be sealed individualy with a ___
prepared join sealer
large cracks in pavement is repaired the same way as ___
what item is used to force sealing material into the cracks in flexible pavements?
which item should you use to mark defective flexible pavement?
as you mark an area for removal of defective flexible pavement, how far into the good pavement should you make your marks?
when removing defective flexiblle pavement you should remove base course materials until __
you reach firm dry material
when repairing defective flexible pavement you should place and compact the base course materials in ___
2 to 3 inch layers
what is the final step in the preperation of a hole for flexible pavement repair?
apply a tack coat to the vertical faces
when should the rolling operation for pavement repair using hot mix begin?
immediately after the material is placed
a completed flexible pavement patch should be level with the surrounding area or ___
1/8th inch higher
surface treatments produce a pavement with a thickness of ___
1 inch or less
which of the following is not a purpose of bitumionus surface treatment?
strengthen the surface
what should be used to seal hairline cracks in flexible pavements?
a fog seal
what type of surface treatment is used to seal surface voids in new asphalt plant mixes?
as soon as the aggregate is spread for a single surface treatment, it is pushed into the soft asphalt by rolling it with a ___
pneumatic tired roller
about how much of the individual aggregate stones in a single surface treatment should be exposed to traffic?
which of the following materials can be used as a binder for a single surface treatment?
RS - 2
the asphalt for a single surface treatment should be covered with agregate within ___
each additional layer of agregate for a multiple surface treatment should be about
half the size of the previous layer
one purpose of an emulsion slurry seal is to
prevent moisture intrusion into the pavement
a slurry seal is normally applied ___
1/16th to 1/8th inch thick
immediately before a slurry the pavement surface should be thoroughly cleaned broomed and ___
moistened with a light application of water
what type of road shoulder exists along narrow pavements, inside curves, and at intersections?
which of type of fence is made of barbed wire three strand 4 feet high?
which type of fence is made of concertina or razor wire?
what item is used to secure the draw bars to the end or terminal posts?
what item is used to extend the height of security fence?
when you are installing a security fence at what maximum distance apart should you place line posts?
how far into the ground should line posts be placed?
what type of tie wire should you use to secure the fence fabric to the line post?
footings or fence post should be deteremined by ___
what the post is used for
what should the diameter of post holes for posts required to be set in concrete?
10 to 12 inches
fences fabric should be 6 or 9 guage fabric with ___
2 inch mesh openings
when you are building fences where should you use tension wire?
with fences without top raill
extension arms should be able to handle 3 strands of barbed wire spaced ___
6 inches apart
when must maintenance be done on security fencing ?
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