Question 1

Screws may be:

Accepted Answer

Screws can be held in place by a nut, inserted through clearance holes for alignment or to attach to another part, and inserted into a threaded hole in a mating part for direct fastening. All these methods are common practices in assembly and construction, making D the correct choice.

Question 2

If the end of an external thread is chamfered, the end view will appear the same regardless of the method selected to show the thread in the profile view.

Accepted Answer

The chamfer on the end of an external thread simplifies the thread's initiation and provides a consistent appearance in the end view, regardless of how the thread is detailed in the profile view.

Question 3

Bolts are generally smaller in size than machine screws and cap screws.

Accepted Answer

Bolts are typically larger and designed to be used with nuts, while machine screws and cap screws are often smaller and meant to be threaded into tapped holes.

Question 4

Machine screws are stronger and more precise than cap screws.

Accepted Answer

Machine screws are generally smaller and designed for use in pre-tapped holes or with nuts. Cap screws, also known as hex bolts, are designed for fastening two parts together and can handle higher loads, making them typically stronger.

Question 5

Washers and/or lock washers provide all of the following, EXCEPT:

Accepted Answer

Washers and lock washers are used to distribute pressure, protect surfaces, and prevent loosening, but they do not allow the use of shorter screws or bolts.

Question 6

Tapped holes that have threads that are cut to a specified depth are often referred to as "blind holes".

Accepted Answer

Blind holes are holes that do not go all the way through the material; they have a bottom, and when threads are cut to a specified depth within such holes, they are indeed referred to as tapped blind holes.

Question 7

Which of the ways of showing threads includes crest and root lines that are perpendicular to the axis of the thread?

Accepted Answer

Schematic representation of threads includes crest and root lines that are perpendicular to the axis of the thread, simplifying the depiction of threaded parts for clarity in technical drawings.

Question 8

Which of the ways of showing threads is the most difficult and time-consuming to produce?

Accepted Answer

The answer of Which of the ways of showing threads...

Question 9

Markings on the head of a bolt specify the bolt's material and grade classification.

Accepted Answer

The markings on the head of a bolt indicate the bolt's material and grade classification, providing information about its strength and intended use.

Question 10

Bolts are externally threaded fasteners that are available in different grades of hardness and tensile strength.

Accepted Answer

Bolts are externally threaded fasteners designed to be mated with internally threaded components like nuts, and they come in various grades that indicate their hardness and tensile strength, allowing for selection based on the specific requirements of the application.

Question 11

These screws might have a cone point, cup point, or oval point.

Accepted Answer

Setscrews are known for having various point types including cone, cup, and oval points, which are used for securing an object within or against another object without the need for a nut.

Question 12

Which of the ways of showing threads includes hidden lines to represent the root of the thread?

Accepted Answer

The answer of Which of the ways of showing threads...

Question 13

Screw threads can be represented on drawings in three different ways. Which of the following is NOT one of the three ways?

Accepted Answer

Isometric is not a method used to represent screw threads on drawings. The three common methods are detailed, schematic, and simplified. Isometric drawings represent three-dimensional objects, but the representation of threads specifically uses detailed, simplified, or schematic approaches.

Question 14

For internal threads, the appearance of the external view and the end view will not be affected by the representation method that is used.

Accepted Answer

The representation method affects the depiction of the thread itself, but the external view and end view of internal threads remain consistent regardless of the method used.

Quiz 23: Screw Thread Representation and Threaded Fasteners

Screws may be:

If the end of an external thread is chamfered, the end view will appear the same regardless of the method selected to show the thread in the profile view.

Bolts are generally smaller in size than machine screws and cap screws.

Machine screws are stronger and more precise than cap screws.

Washers and/or lock washers provide all of the following, EXCEPT:

Tapped holes that have threads that are cut to a specified depth are often referred to as "blind holes".

Which of the ways of showing threads includes crest and root lines that are perpendicular to the axis of the thread?

Which of the ways of showing threads is the most difficult and time-consuming to produce?

Markings on the head of a bolt specify the bolt's material and grade classification.

Bolts are externally threaded fasteners that are available in different grades of hardness and tensile strength.

These screws might have a cone point, cup point, or oval point.

Which of the ways of showing threads includes hidden lines to represent the root of the thread?

Screw threads can be represented on drawings in three different ways. Which of the following is NOT one of the three ways?

For internal threads, the appearance of the external view and the end view will not be affected by the representation method that is used.