Drawing Techniques

Question 1

What is 2D and 3D sketching?

Answer 1

2D is better for plan views and for expressing size
3D is better for conveying the overall shape of a design
Freehand sketch

Question 2

What is perspective drawing?

Answer 2

Perspective drawings show an object in 3D getting smaller in the distance

Question 3

What is a single-point perspective and two-point perspective drawing?

Answer 3

Single-point perspective is often used by interior designers to show a room
Two-point perspective shows an object from the side with two vanishing points

Question 4

What is a isometric drawing?

Answer 4

Used to show a graphical representation of a 3D object
It’s a good way of showing measurements and how components fit together
Isometric drawings show horizontal edges at 30 degrees at an angle

Question 5

What is a system diagram?

Answer 5

It’s used in electronics
This is because as each stage has to perform a specific function before moving on to the next step

Question 6

What is a schematic diagram?

Answer 6

Schematic diagram use symbols to show the layout of an electrical or mechanical system

Question 7

What is a exploded diagram?

Answer 7

Shows how a product can be assembled and how the separate parts fit together and shows a particular of a diagram in a larger scale

Question 8

What is a orthographic drawing?

Answer 8

Working drawings in either first or third angle projections and show each side of a design without perspective

Question 9

What is a scale drawing?

Answer 9

An enlarged or reduced drawing that is proportional to the original object