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WorksheetsStructural
Total questions: 40
Worksheet time: 20mins
What is the temporary force exerted by a device that introduce tension into a pre-stressing tendons?
Driving force
Tensile force
Pre-stressing force
Jacking force
It is a concrete used for structural purposes, including plain and reinforced concrete.
Structural concrete
Concrete
Reinforced concrete
Masonry
The ability of soil to allow water to flow through it.
Osmosis
Capillarity
Seepage
Permeability
Slump test is done in fresh concrete in order primarily to determine:
Rigidity
Elasticity
Water content
Workability
Inert materials in concrete which occupy more than 75% of the volume of the hardened concrete:
Aggregates
Gravel
Sand
Crushed Rocks
It is a method of pre-stressing in which tendons are tensioned after concrete has hardened.
Precast Concrete
Post Tensioning
Pre-Tensioning
Pre-Stressed Concrete
It is a material encasing prestressing reinforcement to prevent bonding of the prestressing reinforcement with the surrounding concrete, to provide corrosion protection, and to contain the corrosion inhibiting coating.
Cover
Sheathing
Shear cap
Anti-rust
A long wall or embankment built to prevent flooding from the bodies of water.
Gabion wall
Dike
Dam
Retaining wall
Knot in woods or timbers are what type of defect?
Over drying defect
Handling defect
Processing defect
Natural defect
The thickness of one-way slab should never be less than:
100mm
90mm
75mm
50mm
Slabs not exposed to weather and not in contact with the ground must have a minimum clear cover of:
20mm
25mm
40mm
50mm
Deformed bars larger than ___ mm should not be bundled.
38
32
36
34
Web reinforcements that resist vertical and diagonal tensions in a beam and hold the main rebars in place.
temperature bars
stirrups
spirals
ties
Slabs are designed per
cubic foot
cubic meter
square foot
linear meter
Slabs with no supporting beams are called:
Ground Slab
Flat Slab
Two-Way Slab
One-Way Slab
Slabs are structural members subjected to
Shearing stress
Tensile stress
Flexural stress
Torsion
What do you call 2 or more materials that are combined together?
Combination
Composite
Reinforced
Laminated
Concrete cast against and permanently exposed to earth must a minimum concrete cover of:
100mm
75mm
50mm
40mm
No.8 deformed bar has a diameter of:
25mm
20mm
12mm
10mm
ASTM Type I Cement is generally for:
Low hydration process
High-early-strength
Low-heat
General purpose
The strength of concrete at 28th day is 3000 psi. This value is the same as:
25.75 MPa
20.67 MPa
21 MPa
17.5 MPa
The minimum reinforcement for spiral column is:
6-16mm Ø
4-16mm Ø
3-16mm Ø
2-16mm Ø
The minimum reinforcement for tied column is:
6-16mm Ø
4-16mm Ø
3-16mm Ø
2-16mm Ø
For Two Way Slab, the Ratio of Width to Length, m, is:
m = 1.0
m ≥ 0.5
m = 0.5
m ≤ 0.5
For One Way Slab, the ratio of Width to Length, m, is:
m = 1.0
m > 0.5
m = 0.5
m < 0.5
It is a continuously wound reinforcement in the form of a cylindrical helix.
Spiral reinforcement
Longitudinal bars
Crossties
Lateral ties
The wall that supports vertical loads:
CHB wall
Retaining wall
Shear wall
Load-Bearing wall
Inert materials in concrete which occupy more than 75% of the volume of the hardened concrete:
Aggregates
Gravel
Sand
Crushed Rocks
This has the effect of delaying the onset of hardening and reducing the rate of hydration process in concrete:
Retarder
Air entraining agent
Accelerator
Additives
What is the temporary force exerted by a device that introduce tension into a pre-stressing tendons?
Driving force
Tensile force
Pre-stressing force
Jacking force
The shear stress at the surface of a reinforcing bar which prevents relative movement between the bar and the surrounding concrete. It is also defined as the force adhesion per unit area of contact between two bonded surfaces is:
Adhesive stress
Hydrostatic Pressure
Axial stress
Bond stress
What do you call a column that is not aligned to a lower floor column?
Unaligned
Floating
Eccentric
Planted
Ties are used for what type of structural elements?
Footings
Columns
Beams
Slabs
Effects of an earthquake are severe at the location of:
Seismicity
Fault lines
Ravines
Near bodies of water
A very common and important structural element, are constructed to provide flat, useful surfaces. It is a horizontal structural component, with top and bottom surfaces parallel or near so. The depth is very small compared to its span.
Footing
Mat footing
Slab
Diaphragm
Reinforcing bars put in contact to act as a unit is called:
Bottom bars
Bundled bars
Tendons
Temperature bars
Usual failure of the intermediate concrete column:
Crushing and Buckling
Buckling
Crushing
Rupture
The sharp bending or sharp buckling when a column is loaded heavily is called:
Elongation
Crippling
Strengthening
Sagging
It is the ability of a material to be stretched without failure.
Ductility
Creep
Elasticity
Malleability
A design in which the tension capacity of the tension steel is greater than the combined compression capacity of the concrete and the compression steel. This design is more dangerous due to the possibility of an abrupt collapse in the reinforced concrete structure.
Over-reinforced
Under reinforced
Balanced design
Working stress design
