Question 1

In the case of internal threads, the thread length is specified as the ____.
A) depth of thread
B) height of thread
C) width per thread
D) length per thread

Accepted Answer

The depth of thread is the correct specification for internal threads, indicating how deep the threads are cut into the material.

Question 2

Describe how a part can be threaded.

Accepted Answer

A part may be threaded internally throughout its entire length or to a specified depth, either by tapping or another machining process. Some threads are bottomed at the same depth as the tap drill. In other cases, the tap drill hole may be deeper.

Question 3

Discuss dimensioning a thread hole.

Accepted Answer

The same system of dimensioning that is used to specify external threads applies to internal threads. However, in the case of internal threads, the thread length is specified as the depth of thread.

Question 4

Explain how the right-hand and left-hand screws are advanced.

Accepted Answer

The answer of Explain how the right-hand and left-hand screws...

Question 5

The accuracy between an external and an internal thread is specified in trade handbooks and manufacturer's tables as a ____.
A) thread fit
B) thread form
C) thread class
D) thread code

Accepted Answer

The accuracy between an external and an internal thread is specified in trade handbooks and manufacturer's tables as a thread class. Thread class is a classification system that sets tolerances and allowances for different types of threads. It determines the fit and function of the threaded components. The class is specified by a number or letter that indicates the tolerance range for the thread. Therefore, thread class is the best choice for the given question.

Question 6

List and describe the three regular class fits for internal and external threads.

Accepted Answer

The answer of List and describe the three regular class...

Question 7

One of the most practical and widely used methods of producing internal threads is to cut them with a round, formed, thread-cutting tool called a ____.
A) binder
B) bore
C) grinder
D) tap

Accepted Answer

The process described in the statement is referring to using a tap to cut internal threads. Taps are specifically designed for this purpose, and are widely used in machining and manufacturing for creating internal threads in a variety of materials.

Question 8

Describe how a tap is used.

Accepted Answer

The answer of Describe how a tap is used....

Question 9

The accompanying figure is an example of a(n) ____ thread.
A) right-hand
B) left-hand
C) top
D) bottom

Accepted Answer

The figure shows a left-hand thread as the thread grooves spiral to the left, counter-clockwise.

Question 10

How are the three regular classes of fits for external and internal threads distinguished from one another?

Accepted Answer

The answer of How are the three regular classes of...

Question 11

The letters ____ are included on the drawing specifications to indicate when a left-hand thread is required.
A) LH
B) LHT
C) LT
D) LTH

Accepted Answer

LH stands for "left-hand" and is the standard abbreviation used in drawing specifications to indicate a left-hand thread is required. The other options (B) LHT, (C) LT, and (D) LTH are not commonly used abbreviations for indicating a left-hand thread.

Quiz 20: Representing and Specifying Internal and Left-Hand Threads

In the case of internal threads, the thread length is specified as the ____.

Describe how a part can be threaded.

Discuss dimensioning a thread hole.

Explain how the right-hand and left-hand screws are advanced.

The accuracy between an external and an internal thread is specified in trade handbooks and manufacturer's tables as a ____.

List and describe the three regular class fits for internal and external threads.

One of the most practical and widely used methods of producing internal threads is to cut them with a round, formed, thread-cutting tool called a ____.

Describe how a tap is used.

The accompanying figure is an example of a(n) ____ thread.

How are the three regular classes of fits for external and internal threads distinguished from one another?

The letters ____ are included on the drawing specifications to indicate when a left-hand thread is required.