What does the preparation of a successful drawing depend upon?

Sectional views reveal ___.

What is the size of the title block of all sizes of drawing sheets?

T-square is used to draw _____ lines:

For A1 size sheets, how many zones are suggested by ISI along the length and width?

The materials required for freehand sketching are ___.

The point in space where parallel lines meet is called the ___.

The pencil should be held by the thumb and first finger so that it rests on the second finger at about ___ from the penc…