L2/3 Quizzes

Question 1

Who developed key theories of building structures and is known as the Father of Modern Physics

Answer 1

Galileo Galilei

Question 2

Modern safety factors in engineering typically call for a 50-150% increase in structural capacity, this is commonly called an _ _.

Answer 2

Excess margin

Question 3

T/F With advances in modern construction, labour-intensive methods such as brick masonry and solid plaster for partition walls are universally uneconomical

Answer 3

False

Question 4

Of the below live loads, which one tends to be mainly horizontal and a prime concern for structural building design in all locations?

• Snow
• People
• Movable furniture
• Wind

Answer 4

Wind

Question 5

T/F Stress is the force applied to a material while strain is the physical reaction to that force

Answer 5

True

Question 6

In a uniformly loaded beam, the point of maximum bending stress occurs at the point of support (beam-to-column connection)

Answer 6

False

Question 7

Which types of stress(es) involve a combination of compression and tension?

• Shear
• Bending
• Both
• Neither

Answer 7

Both

Question 8

Identify one of the common structural materials that feature a design strength of zero for tension and shear

Answer 8

Concrete

Question 9

As per the concept of Moment of Inertia, increasing the _ of a spanning element, decreases the amount of deflection under bending stress

Answer 9

Depth

Question 10

T/F Bearing wall structures are most efficient when loaded uniformly

Answer 10

True

Question 11

In most western housing markets, the predominant bearing wall structures being erected today are:

Answer 11

Light wood frame houses

Question 12

As the horizontal forces transfer through an arch, they produce a consideration _ _ at the arch’s springline (base), which must be countered through a strategy such as placing arches in a series

Answer 12

Outward thrust

Question 13

The hierarchy for horizontally spanning structural elements is floor slab/deck, _, beams and girders

Answer 13

Joists

Question 14

Where along a uniformly-loaded, normally supported beam would be the maximum shear stress?

Answer 14

At the points of support (beam ends)

Question 15

Which of the following structural materials has a design strength of zero for tension and shear:

• Brick
• Steel
• Reinforced concrete
• None of these

Answer 15

Brick

Question 16

Which of the following is considered a cohesive soil:

• Gravel
• Cobble
• Sand
• None of these

Answer 16

None of these

Question 17

Which dewatering technique typically involves the construction of a slurry wall around the perimeter?

Answer 17

Watertight barrier

Question 18

T/F A floating foundation takes advantage of the hydrostatic uplift force exerted by water tables

Answer 18

False

Question 19

Many clay soils, particularly expansive clays, are considered _ soils

Answer 19

Unstable

Question 20

Dewatering via a watertight barrier involves constructing a _ wall around the perimeter

Answer 20

Slurry

Question 21

A _ foundation involves merging all column footings of a foundation together

Answer 21

Raft or mat

Question 22

T/F Bearing wall structures are most efficient when loaded uniformly

Answer 22

True

Question 23

T/F Labour-intensive brick masonry and plaster for partition walls are universally uneconomical

Answer 23

False

Question 24

In a normally supported beam, maximum _ stress is at the points of support

Answer 24

Shear

Question 25

Deflection occurs under which stress(es)?

Answer 25

Bending

Question 26

Name a common structural material that has a design strength of zero for tension and shear

Answer 26

Masonry, concrete, brick, stone

Question 27

Which live load is mainly horizontal and a prime concern for structural building design?

Answer 27

Wind

Question 28

List the following structural elements in the proper hierarchy from a live load to the foundation

• joist
• column
• beam/girder
• floor slab

Answer 28

Floor slab
Joist
Beam/girder
Column

Question 29

T/F Overlapping pressure bulbs can potentially lead to the failure of a building’s foundation

Answer 29

True

Question 30

Which of the following is an example of a highly cohesive soil?

• Cobble
• Gravel
• Sand
• Clay

Answer 30

Clay

Question 31

T/F After a slurry wall trench has been dug, filled with slurry and a welded cage of steel is installed, the next step is to simply place the concrete along the top of the trench and allow the slurry to displace

Answer 31

False

Question 32

Which of the followings types of bracing for sheeted slope support does NOT occupy the excavation area itself therefore does NOT potentially hinder construction activities?

• Crosslot
• Rakers
• Tiebacks

Answer 32

Tiebacks

Question 33

The dewatering technique that may have an adverse effect on nearby buildings is called _ _ which has the potential of altering the underground forces exerted onto neighbouring buildings’ foundations

Answer 33

Well points

Question 34

An alternative to sheet piling is called _ _ and lagging

Answer 34

Soldier beams

Question 35

For a deep foundation, engineers take a series of _ _, which capture soil in a sampling tube and reveal strata (layers of soil)

Answer 35

Test borings

Question 36

T/F Sandy soils are inherently unstable and swell when wet and shrink when they dry out

Answer 36

False

Question 37

T/F Excavation in dense urban areas tend to feature benched slope support rather than sheeted slope support

Answer 37

False

Question 38

T/F A raft foundation is when individual column footings are merged together into a single, large footing

Answer 38

True

Question 39

Of the two main types of deep foundation systems, what is the name of the one that is poured rather than driven?

Answer 39

Caisson

Question 40

One potential option for a developer looking to add floors to an existing building is to _ the foundation, thereby strengthening it

Answer 40

Underpin

Question 41

The first step in the up-down construction process is to:

• Drill column holes and fill with slurry
• Pour the ground floor slab
• Create a perimeter slurry wall
• Pour the column footings using a tremie

Answer 41

Create a perimeter slurry wall