Exam Questions and CORRECT Answers
The amount of water specified in a concrete mix is typically based on which of the following
conditions for the aggregate? - CORRECT ANSWER - saturated surface dry
Aggregate used in hot mix asphalt should be in which of the following conditions? - CORRECT
ANSWER - oven dry
Variables evaluated for the design of hot-mix asphalt include all the following except: -
CORRECT ANSWER - water
Select the materials that exhibit approximate linear elastic behavior to the points indicated: -
CORRECT ANSWER - Steel up to the yield strength, 𝐹y
Concrete up to 50% of its maximum compressive strength, 𝑓'𝑐/2
Concrete up to its modulus of rupture, 𝑓𝑟
Steel reinforcement is typically added to concrete flexural members for all the following reasons
except: - CORRECT ANSWER - To eliminate tension cracking when bending moments
exceed the rupture capacity of the concrete
Which of the following material properties can typically be used to describe wood? - CORRECT
ANSWER - Orthotropic
Which of the following material properties can typically be used to describe steel and concrete? -
CORRECT ANSWER - Isotropic
From the following list, select the properties and characteristics that have an impact on the
design tensile strength of sawn lumber: - CORRECT ANSWER - Moisture content
Temperature
Size
, Load duration
The 3 major phases of soil can be characterized most completely by: - CORRECT
ANSWER - solids, water, air
The typical test used to determine the maximum dry density of a soil is - CORRECT
ANSWER - Standard Proctor
Which type of foundation would be most appropriate for a retaining structure used along the base
of a slope, bearing on bedrock? - CORRECT ANSWER - Wall footings
Which type of foundation would be most appropriate for a 5-story residential structure with a
basement in cohesive soils where shallow footings would cover greater than 50% but less than
100% of the foundation area? - CORRECT ANSWER - Mats
Which type of foundation would be most appropriate for a bridge abutment, adjacent to a stream,
with low bearing capacity cohesive soils? - CORRECT ANSWER - Deep foundations
(piles)
Which type of foundation would be most appropriate for a 2-story office building in non-
cohesive soils with a bearing capacity of 4000 psf? - CORRECT ANSWER - Spread
footing
What is soil stabilization typically associated with? - CORRECT ANSWER - Mechanical
compaction
Application of chemical admixtures such as lime, fly-ash, cement
Installation of geotextile
In stormwater management what does the initial abstraction account for? - CORRECT
ANSWER - Infiltration
Evaporation