1 Flashcards
Standard sign shape for ‘STOP’ sign
OCTAGON
Standard sign shape for ‘GIVE WAY’ sign
EQUILATERAL TRIANGLE
The color of ‘NO LOADING/UNLOADING ZONE’ markings
RED
Device mounted on a fixed support (permanent signs) or portable support (temporary signs) whereby a specific message is conveyed by means of words or symbols placed or erected for the purpose of regulating, warning, or guiding traffic
TRAFFIC SIGNS
Signs which inform and advise road users of directions, distances, routes, and the location of services for road users ad point of interest
GUIDE SIGNS
Signs used to guide drivers through a change in horizontal alignment of the road.
CHEVRON SIGNS
The design element which is the most affected by the volume of traffic
NUMBER OF TRAFFIC LANES
The primary consideration in the design of geometric cross sections for highways, runways, and taxiways is ___________.
DRAINAGE
Reaction times vary widely. As a result, the usual practice is to use a single, rather conservative value. AASHTO suggests a value of _____ in its Policy on Geometric Design of Highways and Streets.
2.5 sec
It provides the detailed requirements for the materials, equipment, and workmanship to be incorporated into the project
SPECIFICATIONS
This refers to the drawing, usually accompanied by notes, of various aspects, or components of the design
PLANS
It includes cost estimates for various parts of the project and are used to evaluate the acceptability of bids and the financial feasibility of the project
ESTIMATES
_______ is the process of increasing the density of a soil by mechanically forcing the soil particles closer together, thereby expelling air from the void spaces in the soil.
COMPACTION
________ is an increase in soil density of a cohesive soil resulting from the expulsion of water from the soil’s void spaces.
CONSOLIDATION
Compactor production is based on the following data:
i. number of paces required
ii. width compacted per pass
iii. compactor speed
iv. compacted lift thickness
v. job efficiency
i, ii, iii, iv, v
The process of giving natural soils enough abrasive resistance and shear strength to accomodate traffic or design loads is called
GROUND MODIFICATION
It involves dropping a heavy weight from a crane onto the ground surface to achieve soil densification
DYNAMIC COMPACTION
________ or placing additional weight on the soil surface, has long been used to densify cohesive soil.
SURCHARGING
________ is the process of densifying cohesionless soils by inserting a vibratory probe into the soil
VIBROFLOTATION
Workers in an excavation be protected from cave-ins by one of the following methods:
i. Sloping or benching of the sides of the excavation
ii. Supporting the sides of the excavation by shoring
iii. Placing a shield between workers and the sides of the excavation
iv. Drying soil to prevent collapsing
i, ii, iii
In highway construction, the process of cutting down high spots and filling in low spots of each roadway layer is called
BALANCING
It is nothing more than a column driven into the soil to support a structure by transferring building loads to a deeper and stronger layer of soil or rock
PILE
If the standard deviation of a set of observations is 0, you can conclude:
a. that all observations are the same value
b. that a mistake in arithmetic has been made
c. that there is no relationship between the observations
d. that the average value is 0
A
A project can be considered to be any series of activity and tasks that:
i. have aspecific objective to be completed within certain specification
ii. have defined start and end dates
iii. monitored project planning
iv. have following limits (if applicable)
v. consume resources (i.e money, people, equipment)
i, ii, iv, and v