PROJECTION 3

Question 1

Axonometric projection

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Answer 1

A parallel projection technique used to create a pictorial drawing of an object by rotating the object along one or more of its axes relative to the plane of projection -

Question 2

Isometric projection

Answer 2

An axonometric projection in which the three coordinate axes appear equally foreshortened and the angle between any two of them is 120 degrees -

Question 3

Angle between Isometric Axes

Answer 3

120 degrees

Question 4

Isometric length/true length

Answer 4

Cos 45/ Cos 30

Question 5

Isometric Projection of a square is

Answer 5

Rhombus

Question 6

Isometric Projection of a circle is

Answer 6

Ellipse

Question 7

Dimetric Projection

Answer 7

Axonometric projection in which Two adjacent mutually perpendicular edges makes equal angles and 3rd mutually perpendicular edge makes an angle other than that made by first two

Question 8

Trimetric Projection

Answer 8

Axonometric projection in which three mutually perpendicular sides make different angles with the plane of projection

Question 9

Oblique Projection

Answer 9

Type of projection in which two-dimensional drawings are prepared from three-dimensional objects such that projectors are parallel and makes an angle other than 90 degrees with picture plane -

Question 10

Cavaliar projection

Answer 10

When the receding lines are true length, and the projectors are at 45 degrees to the plane of projection, the oblique drawing is called -

Question 11

Cabinet projection

Answer 11

When the receding lines are half the true length, and the projectors are at 63.26 degrees to the plane of projection, the oblique drawing is called -