The ratio of the shortest distance from the focus to the shortest distance from the directrix is called ___.

A solid rests on an edge of its base on V.P., it must be kept ___ to H.P.

The angle which is less than a right angle is called ___.

The art of representation of an object by systematic lines on paper is called:

Vernier scales are used in surveying and astronomical instruments for ___.

An ___ section has the section rotated to show the true shape of the sectional view.

Two systems of placing dimensions on a drawing are ___ and ___.

In ___ quadrant, the point lies in front of V.P. and above H.P.