technology

Question 1

This represents a 3-D object using several 2-D views of the object.
• We call this an ?
• You can see the ?

Answer 1

orthographic projection.

front, top and side views of an object.

Question 2

You can quickly put your ideas onto paper by drawing

Answer 2

sketches.

Question 3

By adding ??? , we can make drawings look more

realistic.

Answer 3

perspective

Question 4

• By adding ?? the sketches can look

even more realistic.

Answer 4

shading and colour drawings

Question 5

‘ortho’ means

Answer 5

looking straight at a flat face of an object.

Question 6

‘graphic’ means

Answer 6

a drawing.

Question 7

In order to make orthographic drawings, you will need to look
at an object from ?
and make ?

Answer 7

different sides

separate drawings
of what you see.

Question 8

Feint-lines are

Answer 8

feint lines that are used when planning out the

drawing.

Question 9

Dark-lines are

Answer 9

heavier than the construction lines used to show

visible edges.

Question 10

Dashed-lines are

Answer 10

short dashes of equal length and spacing used
to show something that is hidden e.g. a hole or an edge –
shows hidden detail.

Question 11

Wavy-lines are

Answer 11

heavier and used to indicate where sections of

an object have been removed to make it fit on a pa

Question 12

Chain-consists of

Answer 12

a long line and a dash repeated; used to show

the centre lines of symmetrical object.

Question 13

We usually write measurements in

Answer 13

millimetres (mm).

Question 14

An ?? drawing gives the designer a clearer idea of what

the final object will look like.

Answer 14

isometric

Question 15

To create an isometric drawing, draw all the vertical lines of the
object at , ??
and all the horizontal lines at

Answer 15

90’to the base

30’to the base.

Question 16

When one object pushes against another object, we say that a

Answer 16

force is exerted on to the object.

Question 17

As long as a person sits still on a chair, the force on the chair
remains in the same place. you can say that the force is

Answer 17

stationary or static.

Question 18

When a moving object exerts a force on another object, you

can say that the force is

Answer 18

dynamic.

Question 19

A load that exerts an equal force over the whole structure that
supports it, is called an

Answer 19

even load.

Question 20

A load that mainly exerts a force on one part of the structure
that supports it, is called an

Answer 20

uneven load.

Question 21

Types of forces

Answer 21

• Tension
• Torsion
• Compression
• Shear
• Bending

Question 22

? and ?

act to pull apart and push down on structural members.

Answer 22

Tensile (or pulling forces)

compressive (or pushing forces)

Question 23

A ? force pushes down on a member and makes it

shorter.

Answer 23

compressive

Question 24

A torsion force

Answer 24

twists a beam, either in a clockwise or

anticlockwise direction.

Question 25

Using ???? on the outside of a frame | helps the frame to resist skewing.

Answer 25

triangulation or cross-bracing

Question 26

To prevent a tower structure from twisting, you can use crossbracing

Answer 26

inside the frame structure

Question 27

Materials that are not flexible are called

Answer 27

stiff materials.

Question 28

Materials that bend easily, but return to their original shape when released, are called

Answer 28

flexible materials.

Question 29

A difference between baked clay and foam plastic is that, the baked clay will be ?? than the foam plastic of the same size.

Answer 29

heavier

Question 30

Rock that contains ?? does corrode.

Answer 30

iron

Question 31

Iron is usually mixed with a small amount of ? to form | “steel”, which is much stronger than pure iron.

Answer 31

carbon

Question 32

“stainless steel” is steel that contains a large amount of

Answer 32

chrome.

Question 33

? corrodes or rust easily, while other metals do not corrode | as easily.

Answer 33

Iron