Question 1

If you have a 1/4 - 20 UNC threaded screw and rotate it ten full turns, the end will travel 1/2".

Accepted Answer

A) True 
 B)False  True

Question 2

Which of the following is one of the basic systems of representing threads?

Accepted Answer

A) standard internal system 
B) simplified system 
C)  standard external system 
D)  both a and c 
A) standard internal system 
B) simplified system 
C)  standard external system 
D)  both a and c B

Question 3

This type of retaining ring does not require any grooves and is used mainly as a positioning and locking device.

Accepted Answer

A) beveled ring 
B) bowed ring 
C)  ring for radial assembly 
D)  self-locking ring 
A) beveled ring 
B) bowed ring 
C)  ring for radial assembly 
D)  self-locking ring A

Question 4

The housing diameter for an internal series N5000-25 ring is:

Accepted Answer

A) .688 
B) .453 
C)  .250 
D)  .875 
A) .688 
B) .453 
C)  .250 
D)  .875

Question 5

A bolt is a fastener that is a steel rod with threads at both ends.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is not a correct diameter size for a machine screw?

Accepted Answer

A) .721 
B) .034 
C)  .018 
D)  .080 
A) .721 
B) .034 
C)  .018 
D)  .080

Question 7

A nut that is tightened onto a left-hand thread must be turned to the right.

Accepted Answer

A) True 
 B)False

Question 8

The advantage of multiple threads is:

Accepted Answer

A) power 
B) speed 
C)  stress 
D)  both a and b 
A) power 
B) speed 
C)  stress 
D)  both a and b

Question 9

A thread having 15 threads per inch has a pitch of:

Accepted Answer

A) .15 
B) 1.5 
C)  10.5 
D)  15 
A) .15 
B) 1.5 
C)  10.5 
D)  15

Question 10

What does 5/8 - 11 UNC - 2A X 2 1/2 LG mean?

Accepted Answer

A) 5/8" long, right-handed thread, average fit 
B) 5/8" nominal size, 11 TPL, Unified National Series-Coarse, average fit, external thread, 2 1/2" long 
C)  5/8" diameter, 11" long, coarse series 
D)  11 fit, coarse X 2 1/2" long X 5/8" diameter 
A) 5/8" long, right-handed thread, average fit 
B) 5/8" nominal size, 11 TPL, Unified National Series-Coarse, average fit, external thread, 2 1/2" long 
C)  5/8" diameter, 11" long, coarse series 
D)  11 fit, coarse X 2 1/2" long X 5/8" diameter

Question 11

Which statement is not true of a series 5115 self-locking ring?

Accepted Answer

A) is used for flat contact surfaces 
B) withstands heavy thrust loads 
C)  should not be used with ungrooved shafts 
D)  has arched rim for extra strength 
A) is used for flat contact surfaces 
B) withstands heavy thrust loads 
C)  should not be used with ungrooved shafts 
D)  has arched rim for extra strength

Question 12

This thread form is used in electric light bulbs.

Accepted Answer

A) knuckle thread 
B) buttress thread 
C)  acme thread 
D)  worm thread 
A) knuckle thread 
B) buttress thread 
C)  acme thread 
D)  worm thread

Question 13

Which of the following is not one of the four applications of threads?

Accepted Answer

A) to fasten parts together 
B) for fine adjustments between parts 
C)  for gross measurements 
D)  to transmit motion or power 
A) to fasten parts together 
B) for fine adjustments between parts 
C)  for gross measurements 
D)  to transmit motion or power

Question 14

The depth of a thread is figured by measuring the distance between the crest and the root of the thread, as measured at a right angle to the axis.

Accepted Answer

A) True 
 B)False

Question 15

Spring pins are slightly larger in diameter than the hole into which they are inserted.

Accepted Answer

A) True 
 B)False

Question 16

The minimum full thread length for a screw or stud in aluminum is:

Accepted Answer

A) equal to 1.5 times the diameter 
B) equal to the diameter 
C)  equal to 2 times the diameter 
D)  equal to .5 times the diameter 
A) equal to 1.5 times the diameter 
B) equal to the diameter 
C)  equal to 2 times the diameter 
D)  equal to .5 times the diameter

Question 17

A right-hand thread rotates in a counterclockwise direction.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following is not one of the five standard head forms of cap screws?

Accepted Answer

A) flat head 
B) oval head 
C)  round head 
D)  fillister head 
A) flat head 
B) oval head 
C)  round head 
D)  fillister head

Question 19

Rivets are permanent fasteners, usually used to hold sheet metal together.

Accepted Answer

A) True 
 B)False

Question 20

This thread form is used primarily to transmit power.

Accepted Answer

A) knuckle thread 
B) buttress thread 
C)  ISO metric thread 
D)  worm thread 
A) knuckle thread 
B) buttress thread 
C)  ISO metric thread 
D)  worm thread

Exam 14: Fasteners

If you have a 1/4 - 20 UNC threaded screw and rotate it ten full turns, the end will travel 1/2".

Which of the following is one of the basic systems of representing threads?

This type of retaining ring does not require any grooves and is used mainly as a positioning and locking device.

The housing diameter for an internal series N5000-25 ring is:

A bolt is a fastener that is a steel rod with threads at both ends.

Which of the following is not a correct diameter size for a machine screw?

A nut that is tightened onto a left-hand thread must be turned to the right.

The advantage of multiple threads is:

A thread having 15 threads per inch has a pitch of:

What does 5/8 - 11 UNC - 2A X 2 1/2 LG mean?

Which statement is not true of a series 5115 self-locking ring?

This thread form is used in electric light bulbs.

Which of the following is not one of the four applications of threads?

The depth of a thread is figured by measuring the distance between the crest and the root of the thread, as measured at a right angle to the axis.

Spring pins are slightly larger in diameter than the hole into which they are inserted.

The minimum full thread length for a screw or stud in aluminum is:

A right-hand thread rotates in a counterclockwise direction.

Which of the following is not one of the five standard head forms of cap screws?

Rivets are permanent fasteners, usually used to hold sheet metal together.

This thread form is used primarily to transmit power.

Introduction

Employability Skills for Drafting and Design Technicians

Drafting Tools: Conventional, Cad, and Solid Modeling

Sketching and Lettering for Engineering Communication

Geometric Construction

Spatial Visualization and Multiview Drawings

Dimensioning and Notation

Sectional Views

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Solid 3D Modeling: Computational Design and Analysis

Geometric Dimensioning and Tolerancing

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Assembly and Detail Drawings for Design

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Modern Manufacturing: Materials, Processes, and Automation

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