Tar is a bituminous material that is produced by distillation of petroleum crude oil. True/False In asphalt paving projects, it is common to mill off the old asphalt layer and re-use it in the new construction. True / False New asphalt pavement can be constructed over an old Portland cement concrete pavement, with the old concrete cleaned and prepared to accept the new asphalt. True / False A “tack coat” is used on the base, while a “prime coat” is used between asphalt layers. True / False Asphalt pavements are less durable comparing to concrete pavements. True/False The relationship between application rate, truck configuration, and surface area can be written as . True/False A “material transfer vehicle” or MTV (also called a shuttle buggy) is used to move asphalt from the delivery trucks to the paver. True / False The most common release agent that allows the asphalt mix to flow from the truck bed to the paver hopper is diesel fuel. True / False A dozer with semi-U blades cannot be used for stripping. True/False 45,560-lb track type wheel dozers with power shift has 60,000lb drawbar pull capacity while it travels at 5mph. True/False Dr. Salih Kocak Fall 2016 A dozer’s pushing potential is measured by only horse power per foot of cutting edge. True/False Ripping is an operation for ideal maximum production from the appropriate curve based on the particular dozer model and type of blade. True/False Tractor-pulled scrapers are designed to load, haul and dump loose material in controlled lifts. True/False ‘Segment distance’ is a division of ‘travel time’ by ‘travel speed’. True/False Volumetric performance of a scraper is defined with struck capacity of the bowl in cubical yards. True/False Travel time for a scraper moving at 19mph over a distance of 2,100 ft is 1.85 min. True/False In the production of scrapers with loading times, for one-minute loading time, trip number is less than seven. True/False Tandem powered axle wheel tractor scrapers are not economical when haul grade is greater than 5%. True/False Compaction of asphalt paving is achieved with equipment similar to that used to compact aggregate and soil. True / False In concrete paving, consolidation is normally achieved through the use of mechanical vibrators. True / False Tilting mixers are commonly trailer mounted or otherwise portable small to midsize Power mixers. True / False Common methods for curing concrete slabs include spraying with an approved curing compound and covering with burlap or polyethylene sheets. True / False The use of a slipform paver requires high-slump concrete. True / False In concrete paving, most specifications require that concrete be placed at a temperature greater than 900F. True / False Batching production is a trigonometric function of Batch size. True/False Dr. Salih Kocak Fall 2016 A concrete batch plant has a batching chamber capacity of 10 cy and an average batching cycle time of 2.5 minutes. If the plant efficiency is 80%, the batching capacit.

1. Tar is a bituminous material that is produced by distillation of petroleum crude oil. True/False
In asphalt paving projects, it is common to mill off the old asphalt layer and re-use it in the new
construction. True / False
New asphalt pavement can be constructed over an old Portland cement concrete pavement, with
the old concrete cleaned and prepared to accept the new asphalt. True / False
A “tack coat” is used on the base, while a “prime coat” is used between asphalt layers. True /
False
Asphalt pavements are less durable comparing to concrete pavements. True/False
The relationship between application rate, truck configuration, and surface area can be
written as . True/False
A “material transfer vehicle” or MTV (also called a shuttle buggy) is used to move asphalt from
the delivery trucks to the paver. True / False
The most common release agent that allows the asphalt mix to flow from the truck bed to the
paver hopper is diesel fuel. True / False
A dozer with semi-U blades cannot be used for stripping. True/False
45,560-lb track type wheel dozers with power shift has 60,000lb drawbar pull capacity while it
travels at 5mph. True/False
Dr. Salih Kocak Fall 2016
A dozer’s pushing potential is measured by only horse power per foot of cutting edge. True/False
Ripping is an operation for ideal maximum production from the appropriate curve based on the
particular dozer model and type of blade. True/False
Tractor-pulled scrapers are designed to load, haul and dump loose material in controlled lifts.
True/False
‘Segment distance’ is a division of ‘travel time’ by ‘travel speed’. True/False
Volumetric performance of a scraper is defined with struck capacity of the bowl in cubical yards.
True/False
Travel time for a scraper moving at 19mph over a distance of 2,100 ft is 1.85 min. True/False
In the production of scrapers with loading times, for one-minute loading time, trip number is less
than seven. True/False
Tandem powered axle wheel tractor scrapers are not economical when haul grade is greater than
5%. True/False
Compaction of asphalt paving is achieved with equipment similar to that used to compact
aggregate and soil. True / False
In concrete paving, consolidation is normally achieved through the use of mechanical vibrators.
True / False

2. Tilting mixers are commonly trailer mounted or otherwise portable small to midsize Power
mixers. True / False
Common methods for curing concrete slabs include spraying with an approved curing compound
and covering with burlap or polyethylene sheets. True / False
The use of a slipform paver requires high-slump concrete. True / False
In concrete paving, most specifications require that concrete be placed at a temperature greater
than 900F. True / False
Batching production is a trigonometric function of Batch size. True/False
Dr. Salih Kocak Fall 2016
A concrete batch plant has a batching chamber capacity of 10 cy and an average batching cycle
time of 2.5 minutes. If the plant efficiency is 80%, the batching capacity is 20 cy/hr. True / False
The primary emphasis of FHWA’s “Manual of Uniform Traffic Control Devices, Part 6”, is the
safety of construction workers. True / False
Short-term (less than one day) roadside utility repairs do not require special traffic control and
safety measures. True / False
In highway construction work zones, the higher the traffic speeds, the higher the need to separate
opposing flows of traffic with rigid (concrete) barriers. True / False
The most common cause of injuries and fatalities to construction workers in highway
construction work zones is being struck by moving construction equipment, not struck by
“civilian” traffic traveling through the work zone. True / False
If a truck has a GVW of 23 tons and is moving up a 4% grade, the force needed to overcome
grade resistance is 18.4 pounds. True / False
Roller production is estimated by using 3 parameters as compacted with, average roller speed
and number of roller passes. True / False
A negative slope of the line on a mass diagram indicates cutting. True / False
Contract volume refers to the total dollar value of awarded contracts that a firm has on its books
at any given time and Contract turnover measures the dollar value of work that a firm cannot
complete during a specific time interval. True / False
If the moist density of a soil is 115 pcf and the dry density is 105 pcf, then the moisture content
is 9.52%. True / False
The volume of a soil mass in its natural state is composed of two components: soil and water.
True / False
Unit weight = weight of soil (W)/total soil volume (V) True / False
Using the Atterburg Limits, the Plasticity Index is determined by subtracting the Plastic Limit
from the Liquid Limit. True / False
In the plan view of a horizontal curve, “PC” or Point of curvature, is the central angle. True /

3. False
In the profile view of a vertical curve, both the existing grades and proposed grades are shown.
True / False
Solution
Since it is not mentioned which question to answer so I am going to answer first three questions.
1. Tar is bituminous material that is produced during distillation for crude petroleum. False
Tar is carbonation product of coal or wood, it's not derived from petroleum distillation.
2. True , yes it generally adopted practice, old asphalt layer are used to construct the pavement
again by recycling.
3. True. Old concrete pavement can be repaired with asphalt layer but concrete surface has to be
cleaned properly & treated with suitable admixture.