Design Communication and Sketching module quiz: Singapore O-Level Design and Technology (SEAB 7059) quiz

It produces the most accurate dimensions

It requires expensive equipment

It is fast enough to keep up with ideas, so many possibilities can be explored

It is only used at the very end of a project

Packing the drawing into a box for transport

Cutting the paper to size

Colouring the whole sketch one colour

Boxing out the overall form with light construction lines before adding detail

30 degrees to the horizontal

45 degrees to the horizontal

60 degrees to the horizontal

90 degrees to the horizontal

All three faces are drawn at 30 degrees

One true-shape face is drawn square on, with depth projected back, usually at 45 degrees and often half scale

It shows only a flat front view with no depth

It is the same as orthographic projection

To save ink

Because oblique cannot show real sizes

Because full-depth oblique looks stretched and unrealistic

To make the front face smaller

To show the product realistically to a client

To generate lots of quick ideas

To add colour and texture

To give precise, dimensioned front, side and plan views for making the product accurately

Below the front view

Above the front view

Inside the front view

It is not drawn

A continuous thick line

A dashed (short-dash) line

A thin chain (dot-dash) line

A wavy line

Exact dimensions

Hidden detail lines

Tone, colour and texture to show material and form

The design specification

To make the drawing look busy

To replace the drawing entirely

To hide mistakes

To explain design decisions, materials, sizes and how the product works

A dimensioned first-angle orthographic drawing

A rough freehand idea sketch

A rendered isometric presentation drawing

A mind map

They make the paper larger

They communicate both how a product looks and how it works

They remove the need for any other drawing

They guarantee the product is cheap

Both show the object as flat, separate views

Both keep one face square on to the viewer

Both are pictorial, showing the object in three dimensions on a single drawing

Both must be drawn at half scale