Reviewer 1 Flashcards
In T-beam construction, the flange and
web being built integrally, the width of the
slab effective as T-beam flange shall not
exceed one quarter of the span length of
the beam and the effective overhanging
flange width on each side of the web shall
not exceed:
a.) eight times the slab thickness
b.) one-half the clear distance to the next
web
c.) smaller of the above
d.) 500 mm
b.) one-half the clear distance to the next
web
Which of the following criteria for bundled bars, do not apply? a.) bars larger than 32mm shall not be bundled in beams b.) bundled bars shall be enclosed within stirrups or ties c.) group of parallel reinforcing bars bundled in contact to act as a unit shall be limited to four in any one bundle d.) Individual bars within a bundle terminated within the span of flexural members shall terminate at different points with at least 40db staggered
c.) group of parallel reinforcing bars
bundled in contact to act as a unit shall be
limited to four in any one bundle
A wall that holds back on earth embankment a.) shoring wall b.) retaining wall c.) buttress wall d.) foundation wall
b.) retaining wall
The process of removing concrete forms from the cured concrete a.) stripping b.) deforming works c.) clearing d.) none of these
a.) stripping
Maximum usable strain at extreme concrete compression fiber shall assumed to be equal to a.) 0.001 b.) 0.002 c.) 0.003 d.) 0.004
c.) 0.003
To find the volume of water in a cylinder
tank, multiply the area of its base by its
a.) diameter
b.) radius
c.) height
d.) none of these
c.) height
Two forces equal in magnitude and oppositely directed is called a.) moment b.) couple c.) reaction d.) equilibrant
b.) couple
A force system to be in static equilibrium,
the algebraic sum of the forces along any
direction
a.) minimum
b.) 100%
c.) maximum
d.) zero
d.) zero
What is a round, steel bolt embedded in concrete or masonry use to hold down machinery, steel columns or beams, castings, shoes, beam plates and engine heads? a.) retaining bolts b.) foundation bolts c.) anchor bolts d.) friction bolts
c.) anchor bolts
The ultimate strength of the material divided by the allowable working load a.) maximum strength b.) strength limit c.) safety factor d.) none of these
c.) safety factor
The stress per square unit area of the original cross section of a material which resists its elongation is a.) allowable stress b.) tensile stress c.) flexural stress d.) bending stress
b.) tensile stress
What is the minimum concrete cover for primary reinforcement of beams or columns not exposed to earth or water for precast manufactured under plant control conditions? a.) db but not less than 25mm b.) db but not less than 15mm and need not exceed 40mm c.) db but not less than 20mm and not to exceed 50mm d.) db but not less than 30mm
b.) db but not less than 15mm and need
not exceed 40mm
What is a sheet element such as wire, cable, bar, rod or strand, or a bundle of such elements \_\_\_\_\_\_\_ pre-stress forces to concrete? a.) prestress cables b.) reinforcement c.) tenon cables d.) tendon
d.) tendon
15. It is a circular beam that transmit power to the machinery a.) shaft b.) spandrel c.) rafter d.) lintel
a.) shaft
It is the arrangement of any two or more forces that act on a body or on a group of related bodies. a.) force system b.) transmissibility c.) reluctant d.) equilibrium
a.) force system
The standard hooks for the stirrups and
ties shall mean
a.) a 90-degree bend plus 6 db extension at
the free end of bar, for 16mm bar and
smaller
b.) a 90-degree bend plus 12 db extension
at the free of end bar, for 20mm and 25mm
bar
c.) a 135-degree bend plus 6db extension at
the free end of bar, for 25mm and smaller
d.) all of the above
a.) a 90-degree bend plus 6 db extension at
the free end of bar, for 16mm bar and
smaller
Inside diameter of bend for stirrups and ties for 16mm bar and smaller shall not be less than a.) 4 db b.) 6 db c.) 8 db d.) 10 db
a.) 4 db
Ratio of unit stress to unit strain is:
a. ) ratio and proportion
b. ) modulus of elasticity
c. ) moment of inertia
b.) modulus of elasticity
Aggregates should conform to PNS or ASTM standards and must be well graded, easy workability and method of consolidated are such that thee concrete can be poured without honeycomb or voids. What is the nominal maximum size of a course aggregate when working spaces between reinforcements for proper bonding? a.) Course aggregates shall be no larger than ½ the minimum clear spacing between individual reinforcing bars or wires, bundles of bars, or prestressing tendons or ducts b.) Course aggregates shall be no larger than 5/8 the minimum clear spacing between individual reinforcing bars or wires, bundles of bars, or prestressing tendons or ducts c.) Course aggregates shall be no larger than 7/8 the minimum clear spacing between individual reinforcing bars or wires, bundles of bars, or prestressing tendons or ducts d.) Course aggregates shall be no larger than 3/4 the minimum clear spacing between individual reinforcing bars or wires, bundles of bars, or prestressing tendons or ducts
d.) Course aggregates shall be no larger than 3/4 the minimum clear spacing between individual reinforcing bars or wires, bundles of bars, or prestressing tendons or ducts
A brochure of a steel bar manufactures
claims the following specs: yield strength =
275 Mpa, tensile strength = 450 Mpa. A
sample 32mm x 1000 mm long steel bar
was out for sampling with the following test
results: yield stress = 28.54 kg/sq mm,
ultimate stress = 50.55 kg/sq. mm. Judge
the actual test result against what is
claimed in the brochure and if the test
results meet minimum PS standards.
a.) The test results surpasses the claims on
the brochure and surpasses PS Standards
b.) The test results is below the claims in
the brochure but surpasses PS Standards
c.) The test results are equal to the claims
on the brochure
d.) The test results is below the claims in
the brochure and below the PS Standard
a.) The test results surpasses the claims on
the brochure and surpasses PS Standards
How is 90-degree bend standard hook
for concrete reinforcement constructed?
a.) 90 degree bend plus 10 db extension at
free end of the bar
b.) 90 degree bend plus 12 db extension at
free end of the bar
c.) 90 degree bend plus 6 db extension at
free end of the bar
d.) 90 degree bend plu
b.) 90 degree bend plus 12 db extension at
free end of the bar
The steel materials are to be butt joined using a fillet weld. The thicker material is 8.5mm. What is the minimum size of the fillet weld? a.) 3.0mm b.) 7.5mm c.) 6.0mm d.) 5.0mm
a.) 3.0mm
In formula e=PL/AE, E stands for:
a. ) total deformation
b. ) elongation
c. ) equal forces
d. ) modulus of elasticity
d.) modulus of elasticity
Slab thickness for joist construction shall not be less than one-twelfth the clear distance between ribs not less than a.) 50mm b.) 75mm c.) 100mm d.) 125mm
a.) 50mm
It is designed to resist lateral forces parallel to the plane of the wall a.) bearing wall b.) curtain wall c.) grade wall d.) shear wall
c.) grade wall
The section at which the moment changes from positive to negative is called: a.) neutral axis b.) inflection point c.) point of zero shear d.) maximum moment
b.) inflection point
In column, the ratio of its effective length to its least radius of gyration is called a.) moment of inertia b.) development length c.) slenderness ratio d.) ratio and proportion
c.) slenderness ratio
A joint where two successive placement of concrete meet is called a.) truss joint b.) contraction joint c.) construction joint d.) expansion joint
c.) construction joint
Depth of footing above bottom reinforcement shall not be less than 150mm for footing on soil, nor less than \_\_\_\_ for footing on piles a.) 200mm b.) 300mm c.) 250mm d.) 400mm
b.) 300mm
Loads that change position within the span of a beam in short amount of time. These loads are often exemplified by wheel loads. a.) varying loads b.) snow loads c.) dead loads d.) moving loads
d.) moving loads
A bended rust to resist shear and diagonal stresses in a concrete beam is called a.) bottom bar b.) metal plate c.) stirrups d.) temperature bar
c.) stirrups
Walls that support weight from above as well as their own dead weight a.) load bearing walls b.) shoring walls c.) curtain walls d.) none of these
a.) load bearing walls
A point in each normal section of a member through which the axis passes and about which the section twists a.) centroid b.) shear center c.) center of gravity d.) none of the above
b.) shear center
A quantity which measure the resistance of the mass to being revolved about line is called a.) tension b.) torsion c.) variation d.) deflection
b.) torsion
