COSC 253 Exam 1 || Already Passed.
A _____ of______ is an individual authorization by TCEQ allowing you to proceed with
construction. correct answers Notice, Intent
A Construction Site Notice is required for all sites greater than____ acre. correct answers one
TCEQ stands for_______. correct answers Texas Commission on Environmental Quality
SWPPP stands for_______. correct answers Stormwater Pollution Prevention Plan
(T/F) The SWPPP must remain on site at all times. correct answers T
SWPPP inspections are required to take place every___or___days and within___hours of rain
greater than___inches. correct answers 7, 14, 24, 0.5
_____ ______ Practices are tools (structural measures) used to protect a water source. correct
answers Best Management
BMPs require construction entrances to contain bull rock that is __ to __ inches in diameter.
correct answers 3, 5
_____ fencing is used to control sediment from running off a site, protecting water quality.
correct answers silt
A _____ _____ is a BMP that designates a lined area for washing out cement trucks' chutes and
hoppers. correct answers concrete washout
BMPs require fuel tanks to have a secondary containment with a _____walled tank or ability to
hold tank contents plus a _____ year rain event. correct answers double, 100
Inlet Protection BMPs have the sole purpose to ensure _______ do not reach the _____ system.
correct answers Contaminants, storm
BMPs require grass and landscaping to reach a density of ___percent before the contractor is no
longer responsible. correct answers 70%
Lifts are compacted into a range of___ to ____ inches. correct answers 4, 12
Retaining walls must account for the____of wall, ______on the wall, and____characteristics.
correct answers height, pressures, soil
The most common aggregate size in concrete is___inch to ___inch. correct answers 3/4, 1-1/2
Markings on rebar include: its____, ____ ___,____ ____, and ____. correct answers Size, Steel
Type, Producing Mill, Grade
, Minimum Rebar Grade allowed by IRC: correct answers Grade 40 (40,000 psi)
Corrosion-Resistant Rebar is commonly used where there's mixes of____, ____, and____.
correct answers air, water, salt
Rebar reinforcing is typically spliced by overlapping ___ bar diameters. correct answers 30
Rebar support includes: _____, ______, and ____ ____. correct answers Chairs, Bolsters,
concrete bricks
Welded Wire Reinforcing (WWR) are______ grids of wire/rebar that can be ___, _____, and
______ before delivery. correct answers prefab, cut, shaped, assembled
The greatest Tension Forces in a simple concrete beam occur at the _____/_____of the beam.
correct answers bottom, middle
Rebar should be placed in concrete along the lines of_____ forces. correct answers tension
(T/F) In a Retaining Wall, rebar should be placed on the earth (load) side to resist tensile
(stretching) forces. correct answers T
When Reinforcing a Column, _______ bars are large diameter and placed vertically to add
strength in compression and resist buckling/bending. correct answers Vertical(Column)
To reinforce a column, _____ or _____ are wrapped around the vertical bars to prevent them
from buckling outward. correct answers spirals, ties
Fibrous Reinforcing: correct answers Short fibers of glass, steel, or polypropylene added to
concrete mix
Steel Fiber Reinforcing is added to the concrete mix to increase the ________of the concrete.
correct answers durability
Microfiber Reinforcing is added to the concrete mix to help resist____ ______ _____during
early curing. correct answers plastic shrinkage cracking
Concrete "Creep" is the long-term________of concrete structures due to compressive stress of its
own weight & weight of what it supports. correct answers shortening
Site Cast is expected to shorten/creep at rate of_____th of an inch for every 10 feet of building
height. correct answers 1/16
(T/F) If steel is prestressed, reinforced concrete is subject to no tension & no cracking. correct
answers T
