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Worksheets

Structures

Total questions: 63

Worksheet time: 1hrs 3mins

Name
Class
Date
1.

A ... is a set of elements designed to withstand the forces to which they will be subjected

a)

Structure

b)

Force

c)

element

d)

beam

2.

... structures exist in nature and undergo a process of adaptation to stay alive

a)

Artificial

b)

Natural

3.

... structures are built by human beins.

a)

Artificial

b)

Natural

4.

A ... is strength or energy as an attribute of physical action or movement

a)

force

b)

movement

c)

torsion

d)

rigidity

5.

A structure must be ... so that it doesn’t break when hit by a force.

a)

strong

b)

resistant

c)

flexible

d)

broken

6.

A body is subject to force of ... when two opposing forces are applied and these forces have the tendency to lengthen the body.

a)

Compression

b)

Flexion

c)

tension

d)

shear force

7.

A body is subject to force of ... when two opposing forces are applied and these forces have the tendency to flatten the body.

a)

tension

b)

compression

c)

shear force

d)

torsion

8.

A body is subject to a ... force when it receives one or more forces that have the tendency to bend it.

a)

tension

b)

compression

c)

shear force

d)

bending / flexion

9.

A body is subject to a ... force when two opposing forces are applied to it which have the tendency to cut it.

a)

tension

b)

compression

c)

flexion

d)

shear

10.

A body is subject to the force of ... when two opposing forces are applied that have the tendency to twist it.

a)

tension

b)

compression

c)

flexion

d)

torsion

11.

What are the three basic functions of structures? They must be:

a)

strong, flexible, beautiful

b)

strong, stable, rigid

c)

weak, stable, rigid

d)

strong, stable, building

12.

The best geometric form is the...

a)

circle

b)

hexagon

c)

triangle

d)

tower

13.

Which basket is more stable?

a)

A

b)

B

14.

A structure is the set of elements in a body that are made to __________ the effects of the _________ that act on it.

a)

protect, structure.

b)

resist, forces.

c)

create, humans.

d)

support, elements.

15.

Forces that act on a structure are called...

a)

Foundations

b)

Loads

c)

Beams

d)

Pillars

16.

Permanent loads are those...

a)

made by humans.

b)

that don't move.

c)

that are constantly acting on a structure and don’t vary over time

d)

that vary over time, such as the force of the wind.

17.

Variable loads are those...

a)

made by humans.

b)

that don't move.

c)

that are constantly acting on a structure and don’t vary over time

d)

that vary over time, such as the force of the wind.

18.

Our skeleton is a(n)...

a)

Basic structure

b)

Natural structure

c)

Artificial structure

19.

The bridge in the picture is a(n) ...

a)

Natural structure.

b)

Basic structure.

c)

Artificial structure.

20.

Which elements support the beams?

a)

Pillars

b)

Arches

c)

Foundations

21.

A good structure must be...

a)

Resistant

b)

Stable

c)

Rigid

d)

All the options are correct.

22.

_____________ structures are formed by the joining of bars, forming triangles. The example in the picture is a ___________.

a)

Massive, crane.

b)

Lattice, electric tower.

c)

Triangular, crane.

d)

Frame, scaffolding.

23.

When a structure remains upright and doesn’t fall over, we say it is ...

a)

Stable.

b)

Resistant.

c)

Rigid.

24.

When a structure resists the stresses without breaking, we say it is...

a)

Rigid.

b)

Stable

c)

Resistant.

25.

Which stress is supporting the object in the picture?

a)

Compression stress

b)

Traction stress

c)

Torsion stress

d)

Bending stress

26.

____________ structures resist the loads by means of __________ (steel cables) fixed to very strong supports.

a)

Frame, bars.

b)

Lattice, braces.

c)

Hanging, braces.

d)

Massive, beams.

27.

Which stress is supporting the nut in the picture?

a)

Traction stress

b)

Compression stress

c)

Torsion stress

d)

Bending stress.

28.

The dam in the picture is a ___________ structure because it is a very ___________ and solid structure.

a)

shell, big.

b)

massive, heavy.

c)

lattice, resistant.

d)

vaulted, stable.

29.

The body of this car is a ____________ structure because it is made of resistant ____________ to protect the interior.

a)

Frame, bars.

b)

Shell, sheets or panels

c)

Lattice, elements.

d)

Triangular, bars.

30.

The structure of the picture is ...

a)

Lattice

b)

Vaulted

c)

Massive

d)

Frame

31.

Braces are steel bars or cables that support ___________ stress.

a)

Torsion

b)

Traction

c)

compression

d)

bending

32.

We can improve (mejorar) the resistance of a structure by...

a)

Choosing the right materials.

b)

Changing the shape of the structure.

c)

All the options are correct.

33.

Stress that tends to flatten the element of a structure.

a)

Traction

b)

Compression

c)

Torsion

d)

Bending

e)

Shear

34.

The stress that supports the element in the picture.

a)

Compression

b)

Traction

c)

Torsion

d)

Bending

e)

Shear

35.

Stress that tends to twist the element of a structure.

a)

Compression

b)

Traction

c)

Torsion

d)

Bending

e)

Shear

36.

Stress that tends to separate or cut the element of the structure.

a)

Compresion

b)

Traction

c)

Torsion

d)

Bending

e)

Shear

37.

____________ structures have vertical and horizontal elements and horizontal elements.

a)

Shell

b)

Vaulted

c)

Triangular

d)

Lattice

38.

Internal forces that appear in the elements of a structure.

a)

Stresses

b)

Loads

39.

The ______________ is the base on which the building rests.

a)

pillar

b)

beam

c)

profile

d)

foundation

40.

To improve the stability of a structure we can ...

a)

Get the center of gravity closer to the ground.

b)

Add weight to the base

c)

All the options are correct

41.

We can make a structure more rigid by...

a)

adding bars to form triangles.

b)

reinforcing the joints.

c)

All the options are correct.

42.

Permanent loads are those...

a)

made by humans.

b)

that don't move.

c)

that are constantly acting on a structure and don’t vary over time

d)

that vary over time, such as the force of the wind.

43.

Variable loads are those...

a)

made by humans.

b)

that don't move.

c)

that are constantly acting on a structure and don’t vary over time

d)

that vary over time, such as the force of the wind.

44.

Our skeleton is a(n)...

a)

Basic structure

b)

Natural structure

c)

Artificial structure

45.

Which elements support the beams?

a)

Pillars

b)

Arches

c)

Foundations

46.

When a structure remains upright and doesn’t fall over, we say it is ...

a)

Stable.

b)

Resistant.

c)

Rigid.

47.

When a structure resists the stresses without breaking, we say it is...

a)

Rigid.

b)

Stable

c)

Resistant.

48.

Which stress is supporting the paper in the picture?

a)
b)
c)
d)
49.

Which stress are supporting the legs of the stool in the picture?

a)
b)
c)
d)
50.

____________ structures resist the loads by means of __________ (steel cables) fixed to very strong supports.

a)

Frame, bars.

b)

Lattice, braces.

c)

Hanging, braces.

d)

Massive, beams.

51.

Which stress is supporting the nut in the picture?

a)

Traction stress

b)

Compression stress

c)

Torsion stress

d)

Bending stress.

52.

The dam in the picture is a ___________ structure because it is a very ___________ and solid structure.

a)

shell, big.

b)

massive, heavy.

c)

lattice, resistant.

d)

vaulted, stable.

53.

The structure of the picture is ...

a)

Lattice

b)

Vaulted

c)

Massive

d)

Frame

54.

Braces are steel bars or cables that support ___________ stress.

a)

Torsion

b)

Traction

c)

compression

d)

bending

55.

Stress that tends to flatten the element of a structure.

a)

Traction

b)

Compression

c)

Torsion

d)

Bending

e)

Shear

56.

The stress that supports the element in the picture.

a)

Compression

b)

Traction

c)

Torsion

d)

Bending

e)

Shear

57.

Stress that tends to twist the element of a structure.

a)

Compression

b)

Traction

c)

Torsion

d)

Bending

e)

Shear

58.

____________ structures have vertical and horizontal elements and horizontal elements.

a)

Shell

b)

Vaulted

c)

Triangular

d)

Lattice

59.

Internal forces that appear in the elements of a structure.

a)

Stresses

b)

Loads

60.

The ______________ is the base on which the building rests.

a)

pillar

b)

beam

c)

profile

d)

foundation

61.

To improve the stability of a structure we can ...

a)

Get the center of gravity closer to the ground.

b)

Add weight to the base

c)

All the options are correct

62.

The element 1 in the picture is a(n)...

a)

Pillar

b)

Beam

c)

Arch

d)

Bar

63.

We can make a structure more rigid by...

a)

adding bars to form triangles.

b)

reinforcing the joints.

c)

All the options are correct.

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