Triangulation method is used for developing ___.

An invisible line should intersect a visible line with ___.

Half imperial sheets are generally used by engineering students measuring _____:

Any two lines that are not parallel with each other and do not intersect are called ___ lines.

The sectional views are used to visualize the ___ details of the object.

In orthographic projection, the line of sight is ___ to the plane of projection.

An isometric projection is a  ___.

The three forms of axonometric projection are diametric, trimetric, and ___ projection.