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
A structural member spanning from truss-to-truss or supporting rafters a.) floor joist b.) purlin c.) girt d.) girder
b.) purlin
It is a twisting force that rotates or tends to rotate a shaft a.) dead load b.) elasticity c.) stress d.) torque
d.) torque
It is synonym to bending stress
a. ) flexural stress
b. ) torsional stress
c. ) tangential stress
d. ) normal stress
a.) flexural stress
A standard hook may consist of a 180 deg. bend plus a 4db extension (at free end) not less than a.) 55mm b.) 60mm c.) 75mm d.) 85mm
b.) 60mm
The major horizontal supporting member of the floor system is called a.) rafter b.) purlin c.) girder d.) girt
c.) girder
A wall which support a vertical loads in addition to its weight without the benefit of a complete vertical load carrying space frame is called a.) retaining wall b.) curtain wall c.) shearing wall d.) bearing wall
d.) bearing wall
A standard 90 degree hook consists of a bend plus an extension of a.) 8db b.) 10db c.) 12db d.) 16db
c.) 12db
For offset bent longitudinal bars, the
horizontal support at offset bends shall be
provided by lateral ties, spiral or parts of
the floor construction. Horizontal support
provided shall be designed to resist 1-1/2
times the horizontal component of the
computed force in the inclined portion of
on offset bar. Lateral ties or spiral shall be
placed not more than ______ from points
of bend
a.) 100mm
b.) 150mm
c.) 200mm
d.) 250mm
b.) 150mm
The greatest stress which a material is capable of developing without a permanent deformation remaining upon the complete release of stress is called a.) allowable stress b.) moment of inertia c.) bending stress d.) proportional limit
d.) proportional limit
The failure in a base when a heavily loaded column strikes a hole through is called a.) flexural stress b.) punching moment c.) punching shear d.) single shear
b.) punching moment
Bundled bars shall be enclosed within supports or ties but bars larger than the size below shall not be bundled in beams a.) 40mm b.) 36mm c.) 32mm d.) 28mm
c.) 32mm
Splices in spiral reinforcement shall be lap splices of 48db but not less than a.) 300mm b.) 400mm c.) 500mm d.) 600mm
a.) 300mm
Stone placed on a slope to prevent erosion a.) riprap b.) flag stone c.) embankment d.) border stone
a.) riprap
In any one bundle, groups of parallel
reinforcing bars bundled in contract to act
as a unit shall be limited to a maximum of
a.) three
b.) four
c.) five
d.) six
b.) four
It is a single force, or a force and a couple which acting alone will produce the same effect as the force system a.) force b.) resultant c.) equilibrium d.) transmissibility
a.) force
A horizontal piece of wood, stone, steel or concrete across the top of door or window opening to bear the weight of the walls above the opening a.) lintel b.) transom beam c.) transvers rafter d.) none of these
a.) lintel
Underwater watertight chamber to allow construction work to be done a.) bent chamber b.) submersible air chamber c.) caisson d.) none of these
c.) caisson
What is a design analysis requirement,
considered as a basis for the structural
design of building and structures, where the
total lateral forces are distributed to various
vertical elements of the lateral force-resisting system in proportion to their
rigidities considering the rigidity of the
horizontal bracing system or diaphragm?
a.) shear and moment diagram
b.) distribution of horizontal shear
c.) stability against overturning
d.) horizontal torsional moments
b.) distribution of horizontal shear
The actual stress in a material under a given loading a.) working stress b.) axial stress c.) bending stress d.) allowable stress
a.) working stress
When a beam is loaded, the new position of its longitudinal centroid axis is called a.) deflected shape b.) parabolic curve c.) elastic curve d.) inelastic curve
a.) deflected shape
Where parallel reinforcement is placed in two or more layers, bars in the upper layers shall be placed directly above bars in the bottom layer with clear distance between layers not less than a.) 20mm b.) 25mm c.) 30mm d.) 40mm
b.) 25mm
In spirally reinforced or tied reinforcement compression members, clear distance between longitudinal (vertical) bars shall not be less than 40mm not a.) 1.5db b.) 2.0db c.) 5.0db d.) 1.0db
a.) 1.5db
The minimum thickness of non-prestressed beams of span L whose supports are simply supported a.) L/16 b.) L/18.50 c.) L/2 d.) L/8
a.) L/16
Which of the following criterion
precludes good condition practice for
conduits and pipes embedded in concrete
a.) conduits and pipes embedded is slab,
wall, or beam shall not be larger in outside
dimension than 1/3 the overall thickness of
slab, wall or beam in which they are
embedded
b.) reinforcement with an area not less than
0.002 times area of cross-section shall be
provided normal to piping
c.) conduits and pipes, with their fittings
embedded within the column shall not
displace more than 5% of the area of cross-section which strength is calculated
d.) concrete cover for pipes, conduits, and
fittings hall not be less than 40mm for
concrete exposed to each of the weather
c.) conduits and pipes, with their fittings
embedded within the column shall not
displace more than 5% of the area of cross-section which strength is calculated
The most important component to determine the strength of a concrete mix is a.) cement b.) sand c.) gravel d.) lime
a.) cement
The greatest stretching stress a structural member can bear without cracking or breaking a.) tension limit b.) tensile stress c.) elasticity limit d.) none of these
b.) tensile stress
A beam that project beyond one or both its support is called a.) overhanging beam b.) continuous beam c.) intermediate beam d.) cantilevered beam
d.) cantilevered beam
It refers to occupancy load which is either partially or fully in place or may not be present at all is called a.) live load b.) dead load c.) concentrated load d.) distributed load
a.) live load
What is the method of analyzing indeterminate modular building frames by assuming hinges at the center of the beam, spans and columns height a.) cantilever method b.) moment distribution method c.) free body diagram method d.) portal method
d.) portal method
Which of the following criterion is NOT
applicable for plug and slot welds?
a.) the thickness of plug/slot welds in
material 16mm or less in thickness shall be
equal to the thickness of the material
b.) the minimum center to center spacing in
a longitudinal direction on any line shall be
2 times the length of the slot
c.) the thickness of plug or slot welds in
material over 16mm in thickness shall be at
least ½ times the material but not less than
16mm
d.) the width of the slot shall not be less
than the thickness of the part containing it
plus 8mm nor shall it be greater than 2-1/2
times the thickness of weld
d.) the width of the slot shall not be less
than the thickness of the part containing it
plus 8mm nor shall it be greater than 2-1/2
times the thickness of weld
The minimum clear spacing between parallel bars in a layer shall be db but not less than a.) 20mm b.) 25mm c.) 40mm d.) 50mm
b.) 25mm
A composite member with laterally tied
concrete around a steel core (of design
yield strength not to exceed 350 MPa) shall
have vertical spacing of lateral ties shall not
exceed
a.) 16 longitudinal bar diameter or 48 tie
diameter
b.) ½ times the least side dimension of the
composite member
c.) any of the above
d.) none of the above
d.) none of the above
It means that by which a body develops internal resistance to stress a.) strain b.) strength c.) slenderness d.) stress
d.) stress
One-way concrete slab are used when: a.) The slab is being supported by two parallel beams b.) The slab has no cantilevered portion c.) The concrete slab is reinforced on the near bottom side d.) The concrete slab is sloping to the all side
a.) The slab is being supported by two
parallel beams
In joist construction, consisting of monolithic combination of regularly spaced ribs and a top slab, the ribs shall not be less than 100mm in width and shall have a depth of not more than \_\_\_\_\_ times the minimum width of rib a.) 2 b.) 2-1/2 c.) 3 d.) 3-1/2
d.) 3-1/2
Again, for joist construction, the clear spacing between ribs shall not exceed a.) 250mm b.) 750mm c.) 50mm d.) 1000mm
b.) 750mm
As a seismic requirement for flexural members where hoops are required. How are the remaining portions of a beam treated with transverse reinforcement other than those required with hoops? a.) Where hoops are not required, stirrups shall be spaced at no more than d/2 throughout the length of the member b.) Where hoops are not required, stirrups shall be spaced at no more than d/3 throughout the length of the member c.) Where hoops are not required, hoops shall continue except that spacing shall not be more than d/2 d.) Where hoops are not required, closed stirrups shall be spaced at no more than d/4 throughout the length of the member
a.) Where hoops are not required, stirrups
shall be spaced at no more than d/2
throughout the length of the member
What is a concrete bean placed directly on the ground to provide foundation for the superstructure a.) strap beam b.) gerber beam c.) grade beam d.) tie beam
c.) grade beam
The point in the moment diagram at which the curvature reverses as it changes from concave to convex is called a.) point of deflection b.) moment of inertia c.) point of inflection d.) magnitude
c.) point of inflection
For beam with a slab on one side only, the effective overhanging flange width shall not exceed a.) 1/12 the span length of the beam b.) 6 times the slab thickness c.) ½ the clear distance to the next web d.) any of the above
d.) any of the above
The tendency for one part of a beam to move vertically with respect to an adjacent part is called a.) shear b.) moment c.) force d.) strength
a.) shear
Any material change in shape when subjected to the action of a force is called a.) reflection b.) deflection c.) deformation d.) acceleration
c.) deformation
For normal weight concrete, the modulus of elasticity of concrete Ec, may be taken as a.) 1700 √𝑓𝑐′ b.) 2700 √𝑓𝑐′ c.) 3700 √𝑓𝑐′ d.) 4700 √𝑓𝑐′
d.) 4700 √𝑓𝑐′
An expansion joints adjacent parts of a structure to permit expected movements between them is called a.) contraction joint b.) truss joint c.) construction joint d.) conduction joint
a.) contraction joint
The deformation of as structural member as a result of loads acting on it is called a.) strength b.) stress c.) strain d.) deflection
c.) strain
The force adhesion per unit area of contact between two bonded surface a.) axial stress b.) bond stress c.) allowable stress d.) flexural stress
b.) bond stress
A kind of roof that has four sloping sides
a. ) gable roof
b. ) mansard roof
c. ) hip roof
d. ) lean roof
c.) hip roof
A type of concrete floor which has no beam is called a.) flat slab b.) 2-way slab c.) one-way slab d.) ribbed floor
a.) flat slab
Concrete slab should have a minimum clearance of a.) 20mm b.) 40mm c.) 15mm d.) 30mm
c.) 15mm
In walls and slabs other than concrete joist construction, primary flexural reinforcement shall be spaces not farther apart than three times the wall or slab thickness, nor a.) 300mm b.) 400mm c.) 450mm d.) 550mm
c.) 450mm
If the depth of a web exceeds 900mm longitudinal skin reinforcement shall be uniformly distributed along both side faces of the members for the distance d/2 nearest the flexural tension reinforcement. The maximum spacing of the skin reinforcement shall not exceed the lesser of the d/6 and 300mm. The total area of the longitudinal skin reinforcement in both faces need not exceed \_\_\_\_\_\_ of the required flexural tension reinforcement. a.) ¼ b.) 1/3 c.) ½ d.) 2/3
c.) ½
The connection between two structural elements joined at their ends to form a single, longer element a.) splice b.) stiffness c.) stress d.) slender action
a.) splice
