The hinge lines of an imaginary glass box are known as

Beginners may find it convenient to use a 45 degree line, also known as a ________, to project dimensions between top and side views.

A system of views of an object formed by projectors from the object perpendicular to the desired planes of projection is known as _________, or multi-view projection.

If a plane surface is parallel to a plane of projection, it appears as a ______.

Washers and gaskets will usually need _____ view(s).

Ortho means _______.

The most important view is the ____ view.

The top, front, bottom views align _______.

The ability to visualize or think in _________________ is one of the most important abilities of successful engineers, designers, and scientists.

A line neither parallel nor perpendicular to any of the normal planes or projection is an ______ line.

______ lines are used to indicate axes of symmetrical objects or features, bolt circles, and paths of motion.

_____________ are of great value to designers in organizing their thoughts and recording their ideas.

The rear, left-side, front, and right-side views align ________.

The lines used to extend from one-view to the next are called _______ lines.

When drawing views, the views must be drawn in accordance with the American National Standard .

A drawing for use in production should contain only those views needed for a clear and complete shape description of the object. These minimum required views are referred views are referred to as the ___________.

Objects shaped like cylinders will usually need _____ views

The drafter should leave a gap whenever a hidden line is a continuation of a ____________.

A hidden line takes precedence over a __________.

An object has three principal dimensions:

When a centerline and a hidden line project at the same place, show the ______ line.

In the United States and Canada, __________ projection is standard

A rounded corner is called a ______.

Hidden lines, center lines, dimension lines, and extension lines should be sketched with ________.

A drawing looks more professional when the views are spaced on the drawing _________.

The front view shows only ___________ of the object.

The top, right-side, bottom, and left-side views are all equidistant from the respective folding lines and are the same ______.

The face of the object having the most descriptive feature should be the ______ view.

A cone appears as a circle in some views and as a ________ in others.

When two or three hidden lines meet at a point, the dashes ________.

A view of an object is known technically as a _________.

The outline on the plane of projection shows how the object appears on the observer, Theoretically, the observer is at an infinite distance from the object so that the ___________ are parallel.

A mulit-view drawing of a _________ object would require only two views.

Center lines should be extend uniformly about ____________ (or 8 mm) outside the feature for which they are drawn.

Make visible lines are ______ so the outline will stand out clearly.

The view that is projected directly above the front view is the _____ view.

A rectangle object would have ____ sides.

The distance from the left side of an object to the right side is called the ______.

A projection is a view conceived to be drawn or projected onto a plane known as the _____________.

Sketches usually are _____________. Objects should be sketched in their correct proportions as accurately as possible, by eye.

If a circle is viewed obliquely, it appears as an ________.

The rear, left-side, front, and right-side views all line up horizontally and are the same _______.

The most usual combination of views shown on an orthographic drawing is _______________.

A(n) ____________always takes precendence over (covers up) a centerline or hidden line.