Question 1

The edges of a dovetail are &#34;broken&#34;, preventing:&#10;A)A radius&#10;B)A fillet edge&#10;C)A sharp corner&#10;D)A flat

Accepted Answer

Breaking the edges of a dovetail prevents a sharp corner, which can be a point of stress concentration and potential failure in a mechanical part. This process is done to remove the sharpness and make the edge safer and more resistant to cracking or breaking.

Question 2

Which of the following does NOT describe a dovetail:&#10;A)It consists of a groove and a slot whose sides are cut at an angles&#10;B)It provides an interlocking joint&#10;C)It allows movement in one direction&#10;D)It is easy to measure directly

Accepted Answer

Dovetails are complex joints used in woodworking that are not easy to measure directly due to their intricate interlocking design. They require precise cutting and fitting, making direct measurement challenging.

Question 3

The preferred method for specifying angular dimensions is:&#10;A)As degrees, minutes, and seconds&#10;B)As whole degrees - fractional degrees should not be used&#10;C)As decimal degrees&#10;D)Determined by the individual drafter

Accepted Answer

Decimal degrees are preferred for specifying angular dimensions because they are straightforward and compatible with most CAD (Computer-Aided Design) software, making calculations and conversions simpler.

Question 4

The standard tolerance for angles applies to implied 90-degree angles unless otherwise specified.

Accepted Answer

In technical drawing and drafting, it is a common practice that standard tolerances apply to all dimensions, including implied 90-degree angles, unless the drawing specifies otherwise. This ensures uniformity and precision in manufacturing and construction processes.

Question 5

This feature of a drill press or milling machine table is used for clamping work securely to the table:&#10;A)T-nut&#10;B)T-slot&#10;C)Dovetail

Accepted Answer

T-slots are the features used on drill press or milling machine tables for clamping work securely. They are designed to accept T-nuts and bolts, which can be tightened to hold the workpiece in place.

Question 6

Angular tolerances are always shown in the standard tolerance block, and individual angular dimensions never have specific tolerances shown.

Accepted Answer

Angular tolerances can be specified individually on a drawing, separate from the standard tolerance block, to indicate specific requirements for particular features.

Question 7

T-nuts have a threaded hole and a head that slides in a T-slot.

Accepted Answer

T-nuts are designed with a threaded hole and a flange (head) that allows them to slide into and lock into the T-slots of machine tool tables, workbenches, or other equipment with T-slots, providing a way to secure objects to these surfaces.

Question 8

T-slots and T-nuts are symmetrical, and are drawn with a symmetry line.

Accepted Answer

T-slots and T-nuts are symmetrical, meaning they have a mirror image of themselves. A symmetry line is a line that divides a shape into two identical halves.

Question 9

Lines and surfaces shown to be at right angles will be 90 degrees unless otherwise specified.

Accepted Answer

By definition, lines or surfaces at right angles to each other form a 90-degree angle, unless it is explicitly stated otherwise.

Question 10

An angle of 30 &#176; 15&#34; could be shown in decimal form as:&#10;A)30.15 &#176;&#10;B)30.30 &#176;&#10;C)30 25 &#176;&#10;D)30.25 &#176;

Accepted Answer

To convert an angle given in degrees and minutes to decimal degrees, divide the minutes by 60 (since there are 60 minutes in a degree). Here, 15" (minutes) divided by 60 equals 0.25. Therefore, 30° 15" is 30.25°.

Question 11

Dovetail accuracy is measured indirectly, by placing accurate rods in the corners and measuring over, or between them.

Accepted Answer

The answer of Dovetail accuracy is measured indirectly, by placing...

Deck 16: Angles, Dovetails, and Slots