Structures Engineering

Question 1

Structural Materials used in building up a system of storing and distributing water and collecting and disposing of wastewater.

Answer 1

Clay, bitumen, bricks

Question 2

It was used to construct aqueducts, trusses, domes, arches, vaults, etc.

Answer 2

Stone and masonry

Question 3

They invented cement using lime mortar and volcanic ash.

Answer 3

Roman engineers

Question 4

one-dimensional entities (trusses, frames, cables, arches)

Answer 4

Discrete elements

Question 5

two or three-dimensional space (plates and shells)

Answer 5

Continuous elements

Question 6

It is a curved
member

Answer 6

Arches

Question 7

Members are subjected to axial forces only (tension or compression)

Answer 7

Truss

Question 8

Members connected to one another with rigid or semi- rigid connections.

Answer 8

Frames

Question 9

Members are short, prismatic, slender and straight.

Answer 9

Truss

Question 10

Members connected to one another with pin connections.

Answer 10

Truss

Question 11

It does not have shear forces or bending moments.

Answer 11

Truss

Question 12

In frames, the horizontal members are
called?

Answer 12

Beams (or girder, joist, purlin, lintel).

Question 13

In frames, the vertical members are called?

Answer 13

Column

Question 14

Members are slender, prismatic, and can be straight or curved.

Answer 14

Frames

Question 15

They are subjected to
bending moments

Answer 15

Beams

Question 16

They carry axial forces.

Answer 16

Columns

Question 17

It is a slender member, with a very small cross-section compared to the length.

Answer 17

Cables

Question 18

When load is discrete, the deformed shape is what?

Answer 18

A straight line

Question 19

When load is distributed, deformed
shape is what?

Answer 19

A curve

Question 20

In cables, the primary internal force is what?

Answer 20

Axial tension

Question 21

In Arches, the primary internal force is what?

Answer 21

Compression

Question 22

It is usually normal to the flat surface.

Answer 22

Loading

Question 23

A flat structural member with thickness usually small compared to lateral dimensions.

Answer 23

Plates

Question 24

Can be singly curved such as cylindrical shells, doubly curved such as spherical shells or hyperbolic paraboloid surfaces.

Answer 24

Shells

Question 25

A structural member where the roof system is a truss while the structure that transmit the load to the ground is a frame

Answer 25

Trussed Frame

Question 26

It provides lateral stability and reduce the overall deflection of the frame.

Answer 26

Braced Systems

Question 27

It is a structural system used for very long spans as required in some bridges.

Answer 27

Suspension Systems

Question 28

Its basic load transfer mechanism is along one-direction.

Answer 28

One-way slab

Question 29

They are sometimes assumed to act as wide flat beams, and are constructed in various shapes – T-beams, joist systems, waffle pan, precast planks, etc.

Answer 29

Floor slabs

Question 30

It consists of a slab and beam assembly – slabs spanning on secondary beams that then rest on main beams supported on columns.

Answer 30

Conventional roofs

Question 31

It forms the basis of the advanced numerical techniques.

Answer 31

Classical Techniques

Question 32

It gave a new life to techniques that were considered unsuitable for hand calculations.

Answer 32

Numerical Techniques

Question 33

A part of structural design where it is established by the client.

Answer 33

Need

Question 34

A part of structural design where selections are narrowed by several considerations.

Answer 34

Intermediate designs

Question 35

Angle between two or more connected members is the same after deformation.

Answer 35

Rigid

Question 36

Transmits shear and axial forces but not the moment – “moment-release” connection.

Answer 36

Internal Hinge

Question 37

Rigidity is depicted by a torsional spring.

Answer 37

Typical

Question 38

It is a figure of a structural component or system showing all the forces (external, internal, reactive) acting on it.

Answer 38

Free-Body Diagram

Question 39

If a structural system is in ________, then any component of the system is also in equilibrium.

Answer 39

Equilibrium

Question 40

If the number of unknowns is equal to the number of available equilibrium equations, then the structure is said to be?

Answer 40

Statically determinate.

Question 41

It is assumed on the basis of structural stability.

Answer 41

Determinacy or indeterminacy of a structure

Question 42

It is an inherent property of the structure and not of the loads acting on it.

Answer 42

Stability

Question 43

if (m + r) < 2j, the truss is ________.

Answer 43

Unstable

Question 44

If (m + r) = 2j, the truss is ________.

Answer 44

Determinate

Question 45

If (m + r) > 2j, the truss is ________.

Answer 45

Indeterminate, indeterminacy is equal to (m + r − 2j).