Deck 20: Tapers and Chamfers

Question 1

The rate of increase or decrease of a taper along the length of the taper is called the taper ratio.

Answer 1

True

Question 2

A chamfer is an angle cut on the end of a shaft or on the edge of a hole.

Answer 2

True

Question 3

Chamfers remove sharp edges, add to the appearance of the part, and:

A)Provide handling safety.
B)Reduce manufacturing costs.
C)Make assembly more difficult.

Answer 3

A

Question 4

The most common standard tapers used in industry are

A)Brown and Sharpe, Jacobs, and American National Standard
B)Brown and Sharpe, Morse, and American National Standard
C)Jarno, Morse, and American National Standard

Question 5

If the large diameter of a 10-inch long part is 1.25", and the small diameter is 0.95" the taper ratio is:

A)0.3
B)0.95
C)0.03

Question 6

Chamfered edges are usually cut at angles ranging from:

A)Zero to 90 degrees
B)20 to 60 degrees
C)30 to 45 degrees
D)40 to 50 degrees

Question 7

The rate of taper can be determined if:

A)the large diameter and the small diameter are known
B)the large diameter and length are known
C)the large diameter, the small diameter, and the length of the tapered section are known

Question 8

Tapers may be conical or flat.

Question 9

A taper can be specified on a drawing:

A)In degrees of taper
B)As a taper ratio
C)By notation that a standard industrial taper is required
D)By any of the ways described in a, b, and c above

Question 10

Flat taper may be specified as:

A)flat taper per inch, flat taper as a ratio, or conical taper
B)flat taper per inch, flat taper as a ratio, or flat taper in degrees
C)flat taper per inch, Morse taper, or flat taper as a ratio
D)​