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Worksheets

Structural

Total questions: 40

Worksheet time: 20mins

Name
Class
Date
1.

What is the temporary force exerted by a device that introduce tension into a pre-stressing tendons?

a)

Driving force

b)

Tensile force

c)

Pre-stressing force

d)

Jacking force

2.

It is a concrete used for structural purposes, including plain and reinforced concrete.

a)

Structural concrete

b)

Concrete

c)

Reinforced concrete

d)

Masonry

3.

The ability of soil to allow water to flow through it.

a)

Osmosis

b)

Capillarity

c)

Seepage

d)

Permeability

4.

Slump test is done in fresh concrete in order primarily to determine:

a)

Rigidity

b)

Elasticity

c)

Water content

d)

Workability

5.

Inert materials in concrete which occupy more than 75% of the volume of the hardened concrete:

a)

Aggregates

b)

Gravel

c)

Sand

d)

Crushed Rocks

6.

It is a method of pre-stressing in which tendons are tensioned after concrete has hardened.

a)

Precast Concrete

b)

Post Tensioning

c)

Pre-Tensioning

d)

Pre-Stressed Concrete

7.

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.

a)

Cover

b)

Sheathing

c)

Shear cap

d)

Anti-rust

8.

A long wall or embankment built to prevent flooding from the bodies of water.

a)

Gabion wall

b)

Dike

c)

Dam

d)

Retaining wall

9.

Knot in woods or timbers are what type of defect?

a)

Over drying defect

b)

Handling defect

c)

Processing defect

d)

Natural defect

10.

The thickness of one-way slab should never be less than:

a)

100mm

b)

90mm

c)

75mm

d)

50mm

11.

Slabs not exposed to weather and not in contact with the ground must have a minimum clear cover of:

a)

20mm

b)

25mm

c)

40mm

d)

50mm

12.

Deformed bars larger than ___ mm should not be bundled.

a)

38

b)

32

c)

36

d)

34

13.

Web reinforcements that resist vertical and diagonal tensions in a beam and hold the main rebars in place.

a)

temperature bars

b)

stirrups

c)

spirals

d)

ties

14.

Slabs are designed per

a)

cubic foot

b)

cubic meter

c)

square foot

d)

linear meter

15.

Slabs with no supporting beams are called:

a)

Ground Slab

b)

Flat Slab

c)

Two-Way Slab

d)

 One-Way Slab

16.

Slabs are structural members subjected to

a)

Shearing stress

b)

Tensile stress

c)

Flexural stress

d)

Torsion

17.

What do you call 2 or more materials that are combined together?

a)

Combination

b)

Composite

c)

Reinforced

d)

Laminated

18.

Concrete cast against and permanently exposed to earth must a minimum concrete cover of:

a)

100mm

b)

75mm

c)

50mm

d)

40mm

19.

No.8 deformed bar has a diameter of:

a)

25mm

b)

20mm

c)

12mm

d)

10mm

20.

ASTM Type I Cement is generally for:

a)

Low hydration process

b)

High-early-strength

c)

Low-heat

d)

General purpose

21.

The strength of concrete at 28th day is 3000 psi.  This value is the same as:

a)

25.75 MPa

b)

20.67 MPa

c)

21 MPa

d)

17.5 MPa

22.

The minimum reinforcement for spiral column is:

a)

6-16mm Ø

b)

 4-16mm Ø

c)

3-16mm Ø

d)

2-16mm Ø

23.

The minimum reinforcement for tied column is:

a)

6-16mm Ø

b)

4-16mm Ø

c)

3-16mm Ø

d)

2-16mm Ø

24.

For Two Way Slab, the Ratio of Width to Length, m, is:

a)

m = 1.0

b)

m ≥ 0.5

c)

m = 0.5

d)

 m ≤ 0.5

25.

For One Way Slab, the ratio of Width to Length, m, is:

a)

m = 1.0

b)

m > 0.5

c)

m = 0.5

d)

m < 0.5

26.

It is a continuously wound reinforcement in the form of a cylindrical helix.

a)

Spiral reinforcement

b)

Longitudinal bars

c)

Crossties

d)

Lateral ties

27.

The wall that supports vertical loads:

a)

CHB wall

b)

Retaining wall

c)

Shear wall

d)

Load-Bearing wall

28.

Inert materials in concrete which occupy more than 75% of the volume of the hardened concrete:

a)

Aggregates

b)

Gravel

c)

Sand

d)

Crushed Rocks

29.

This has the effect of delaying the onset of hardening and reducing the rate of hydration process in concrete:

a)

Retarder

b)

Air entraining agent

c)

Accelerator

d)

Additives

30.

What is the temporary force exerted by a device that introduce tension into a pre-stressing tendons?

a)

Driving force

b)

Tensile force

c)

Pre-stressing force

d)

Jacking force

31.

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:

a)

Adhesive stress

b)

Hydrostatic Pressure

c)

Axial stress

d)

Bond stress

32.

What do you call a column that is not aligned to a lower floor column?

a)

Unaligned

b)

Floating

c)

Eccentric

d)

Planted

33.

Ties are used for what type of structural elements?

a)

Footings

b)

Columns

c)

Beams

d)

Slabs

34.

Effects of an earthquake are severe at the location of:

a)

Seismicity

b)

Fault lines

c)

Ravines

d)

Near bodies of water

35.

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.

a)

Footing

b)

Mat footing

c)

Slab

d)

Diaphragm

36.

Reinforcing bars put in contact to act as a unit is called:

a)

Bottom bars

b)

Bundled bars

c)

Tendons

d)

Temperature bars

37.

Usual failure of the intermediate concrete column:

a)

Crushing and Buckling

b)

Buckling

c)

Crushing

d)

Rupture

38.

The sharp bending or sharp buckling when a column is loaded heavily is called:

a)

Elongation

b)

Crippling

c)

Strengthening

d)

Sagging

39.

It is the ability of a material to be stretched without failure.

a)

Ductility

b)

Creep

c)

Elasticity

d)

Malleability

40.

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.

a)

Over-reinforced

b)

Under reinforced

c)

Balanced design

d)

Working stress design