Precision Machining Technology (MindTap Course List)
2nd Edition
ISBN: 9781285444543
Author: Peter J. Hoffman, Eric S. Hopewell, Brian Janes
Publisher: Cengage Learning
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Textbook Question
Chapter 3.1, Problem 14RQ
A plane used as a reference for dimensions is called a(n) __________ __________.
Expert Solution & Answer
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=
The forces F₁ = 590 lb, F₂ = 380 lb, F3 = 240 lb and F
330 lb. Determine the forces in each member of the truss.
Use positive values to indicate tension and negative values to
indicate compression.
a
a
a
D
b
F₁
A
000
B.
779977
F₂V
H
G
E
F4
b
BY NC SA
2013 Michael Swanbom
Values for dimensions on the figure are given in the following
table. Note the figure may not be to scale.
Variable Value
a
6 ft
b
10.1 ft
The force in member AB is
lb.
The force in member AH is
lb.
The force in member GH is
lb.
The force in member BH is
lb.
The force in member BC is
lb.
The force in member BG is
lb.
The force in member EG is
lb.
The force in member CD is
lb.
The force in member DE is
lb.
The force in member CE is
lb.
The force in member CG is
lb.
Multiple Choice
Circle the best answer to each statement.
1. Which type of surface deviation is controlled by a cy-
lindricity tolerance but not by a circularity tolerance?
A.
B.
C.
Ovality
Taper
Lobing
D. None of the above
2. When verifying a cylindricity tolerance, the inspec-
tion method must be able to collect a set of points and
determine the:
A. Distance between two coaxial cylinders that con-
tain the set of points
B.
Cylinder that circumscribes the set of points
C. Cylinder that inscribes the set of points
D.
Distance between two coaxial circles that contain
the set of points
3. Where Rule #1 applies to a cylindrical regular feature
of size, the tolerance value of a cylindricity tolerance
applied to the feature of size must be
tolerance.
A. Less than
B. Equal to
C. Greater than
D. None of the above
the size
4. Which of the following modifiers may be applied with
a cylindricity tolerance?
A. M
B.
C. ℗
D. Ø
5. Which geometric tolerance can provide an indirect
cylindricity…
The beam AB is attached to the wall in the xz plane by a
fixed support at A. A force of
F = (−129î + 69.0ĵ + 3591) N is applied to the end of
the beam at B. The weight of the beam can be modeled with
a uniform distributed load of intensity w = 85.0 N/m acting in
the negative z direction along its entire length. Find the
support reactions at A.
Z
с
A
b
a
B
F
y
Cc 10
BY NC SA
2016 Eric Davishahl
X
Values for dimensions on the figure are given in the following.
table. Note the figure may not be to scale.
Variable
Value
a
5.60 m
b
5.00 m
C
3.70 m
A
II
=
MA = (
m
2.>
~.>
+
+
k) N
k) N-
Chapter 3 Solutions
Precision Machining Technology (MindTap Course List)
Ch. 3.1 - Information such as tolerances and scale can be...Ch. 3.1 - What view of a drawing usually shows the most...Ch. 3.1 - Prob. 3RQCh. 3.1 - The line type used to show edges of an object that...Ch. 3.1 - What line type is used to show edges of an object...Ch. 3.1 - What two line types work together to show sizes on...Ch. 3.1 - Identify the line types labeled in the print...Ch. 3.1 - Define and briefly describe the following...Ch. 3.1 - A dimension listed on an engineering drawing is...Ch. 3.1 - List and briefly describe the three types of...
Ch. 3.1 - Briefly describe the difference between a...Ch. 3.1 - The relationship between sizes of mating parts is...Ch. 3.1 - What does GDT stand for?Ch. 3.1 - A plane used as a reference for dimensions is...Ch. 3.1 - A GDT symbol and the amount of tolerance are shown...Ch. 3.1 - What are the five categories of symbols used in...Ch. 3.1 - Briefly explain the benefit of a position...Ch. 3.2 - Prob. 1RQCh. 3.2 - What is the purpose of layout fluid (dye)?Ch. 3.2 - Prob. 3RQCh. 3.2 - Briefly define a scriber and its use.Ch. 3.2 - What two angles can be laid out with the...Ch. 3.2 - What two tasks can a divider be used to perform?Ch. 3.2 - What safety precautions should be observed when...Ch. 3.2 - What would the divider setting be to scribe a...Ch. 3.2 - What would the divider setting be to scribe an arc...Ch. 3.2 - Prob. 10RQCh. 3.2 - Prob. 11RQCh. 3.2 - Briefly describe the use of a surface gage.Ch. 3.3 - What are three safety rules to observe when using...Ch. 3.3 - List three types of screwdriver tips.Ch. 3.3 - What is the advantage of using slip joint pliers?Ch. 3.3 - What is an advantage of using locking pliers?Ch. 3.3 - What are two uses for a ball peen hammer?Ch. 3.3 - What is the advantage of a soft face hammer?Ch. 3.3 - In what situation would a box-end wrench be chosen...Ch. 3.3 - List two precautions to observe when using...Ch. 3.3 - What is one method of preventing damage to work...Ch. 3.3 - List three safety precautions to be observed when...Ch. 3.3 - In which direction should hacksaw blade teeth...Ch. 3.3 - List two safety precautions that should be...Ch. 3.3 - Will a single-cut or a double-cut file remove...Ch. 3.3 - Will a single-cut or a double-cut file produce a...Ch. 3.3 - ___________ and _________ are two common filing...Ch. 3.3 - What tool is used to clean a file?Ch. 3.3 - What are the two forms of abrasives used in...Ch. 3.4 - Sawing machines can be divided into roughly four...Ch. 3.4 - The vertical band saw is particularly useful, as...Ch. 3.4 - The horizontal band saw is ideal for cutting...Ch. 3.4 - Cutting action on the power hacksaw is very...Ch. 3.4 - List three safety precautions to observe when...Ch. 3.4 - Briefly describe the process to prepare for...Ch. 3.4 - List three safety precautions to observe when...Ch. 3.4 - What type of band saw blade has HSS teeth welded...Ch. 3.4 - How many saw teeth should be engaged in the...Ch. 3.4 - Name the three different types of tooth patterns.Ch. 3.4 - What are the three types of tooth set and why is...Ch. 3.4 - The slot created in a workpiece by the saw blade...Ch. 3.4 - Explain how to use a push stick.Ch. 3.4 - Saws should be ____________ _____________ when a...Ch. 3.4 - Saw guides should be mounted ________ above the...Ch. 3.4 - Why must a band saw blade be annealed after...Ch. 3.4 - Why does a band saw blade need to be ground after...Ch. 3.4 - Clearance between the vertical band saw guides and...Ch. 3.4 - Band saw cutting speeds are given in _________.Ch. 3.5 - What is the main benefit of offhand abrasive...Ch. 3.5 - What type of metals should not be ground on a...Ch. 3.5 - Which wheel is finer, a 60 grit or a 36 grit?Ch. 3.5 - If a grinder runs at 3400 RPM and you have a wheel...Ch. 3.5 - How is a ring test performed?Ch. 3.5 - Why is it necessary to have blotters on both sides...Ch. 3.5 - The maximum distance that a spark breaker and tool...Ch. 3.5 - When should a grinding wheel be dressed?Ch. 3.5 - Where should you stand when using a grinder?Ch. 3.6 - Define drilling.Ch. 3.6 - What factors might determine when a hole must be...Ch. 3.6 - Prob. 3RQCh. 3.6 - Explain the purpose of a counterbore.Ch. 3.6 - What is the purpose of the pilot on a counterbore?Ch. 3.6 - What should be done as a drill nears the...Ch. 3.6 - Define thread as it relates to benchwork.Ch. 3.6 - Explain the major diameter of a thread.Ch. 3.6 - What is the TPI of a -20 thread?Ch. 3.6 - Name two types of tap wrenches.
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- need help?arrow_forwardA bent pipe is attached to a wall with brackets as shown. A force of F = 180 lb is applied to the end of the tube with direction indicated by the dimensions in the figure. Determine the support reactions at the brackets B, C, and D. Model these brackets as journal bearings (only force reactions perpendicular to the axis of the tube) and neglect couple moment reactions. Assume the distance between the supports at B and C and the tube bends nearby are negligible such that the support at C is directly above the support at D and the dimension g gives the distance between supports B and C. Enter your answers in Cartesian components. 2013 Michael Swanbom cc 10 BY NC SA g h א B 8° У A C x каж Values for dimensions on the figure are given in the table below. Note the figure may not be to scale. Variable Value a 6.72 in b 11.8 in с 14.8 in d 42.0 in h 26.6 in g 28.0 in → The reaction at B is B = lb. The reaction at C is C = lb. The reaction at D is D = lb. + << + + 2. + + 557 〈んarrow_forwardThe force F1 = 10 kN, F2 = 10 kN, F3 = 10 kN, F4 = 5 KN are acting on the sttructure shown. Determine the forces in the members specified below. Use positive values to indicate tension and negative values to indicate compression. F2 D b F1 F3 C E b F4 b B F a G Values for dimensions on the figure are given in the following table. Note the figure may not be to scale. Variable Value a 3 m b 4 m The force in member BC is KN. The force in member BE is KN. The force in member EF is KN.arrow_forward
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