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Machine Trades Print Reading 2022
Short Answer
Unit 1
13. What is the difference between detail drawings and assembly drawings?
Answer: Detail drawings provide all the necessary information needed to produce a part, and assembly
drawings identify each part and show how they fit together.
14. Why are print reading skills valuable to a machinist?
Answer: Machinists interpret information on prints to determine processes, tools, and operations needed to
produce the part.
Unit 2
13. Name the six principal views created by orthographic projection.
Answer: Front view, rear view, right-side view, left-side view, top view, and bottom view.
14. Why is it critical to know what projection method is used when reading a drawing?
Answer:
If the reader does not know what projection method is used, they will interpret the details incorrectly.
This can lead to costly manufacturing errors.
Unit 3
23.
In the image provided, surface 5 in the top view is represented by what line in the front view?
Answer: 27
Copyright by The Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website.
1
24. In the image provided, line 35 in the right-side view is represented by what surface in the front view?
Answer: 43
25. In the image provided, what type of line is B?
Answer: Visible line
Copyright by The Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website.
2
26. In the image provided, what type of line is A?
Answer: Hidden line
27. In the image provided, line 29 in the front view corresponds to what line in the top view?
Answer: 10
Copyright by The Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website.
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28. In the image provided, line 14 in the top view corresponds to what line in the right-side view?
Answer: 35
Unit 4
18. Why are large drawings typically folded down to an A-size?
Answer: Storing and identifying large drawings is difficult, so folding them down to the smallest size keeps
the name and drawing number accessible from the outside of the folded drawing.
19. When reading the dimensions of an object, why is it important to use the dimensions listed on the drawing
rather than scale them from the drawing?
Answer: The dimensions listed on the drawing are always the actual size of the object. Scale only reflects the
size of the object in relationship to the drawing. It is common for drawings to be printed at a different size
than the original, which makes the scale of the object no longer accurate.
Unit 6
35. When is it appropriate to use a small hole gage to measure a slot?
Answer: If it is too small to be measured with inside calipers or a telescoping gage.
Unit 7
23. When are limits beneficial?
Answer: Limits are beneficial when a dimension’s value cannot exceed a maximum value and cannot be less
than a minimum value
Copyright by The Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website.
4
24. What is the difference between a specified tolerance and an unspecified tolerance?
Answer: A specified tolerance is directly applied to a dimension, while an unspecified tolerance appears in a
general note and applies to a dimension that does not have a specified tolerance.
Unit 8
18. Using the drawing provided, what is the dimension of the fillet?
Answer: R.062
.062
Unit 11
20. When is a detailed representation typically used?
Answer: When additional information is needed, such as for new forms or modified threads.
21. What are UNEF threads used for?
Answer: They are used for special applications requiring finer thread, such as thin wall tubing, nuts, and
couplings.
Unit 13
14. Which of the lines shown in the illustration is a correct example of a cutting-plane line?
Answer: A
Copyright by The Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website.
5
15. Which drawing shows the preferred practice?
Answer: C
Unit 15
25. List three benefits of GD&T.
Answer: Any three of the following: Helps clarify production requirements and verify that tolerance
requirements have been met, helps reduce drawing changes, increases productivity, and avoids accidental
scrapping of functional parts.
Unit 17
11. List two reasons why hidden lines may be useful on an assembly drawing.
Answer: In any order: 1) In limited use, hidden lines can aid in the clarification of edges and contours. 2)
Hidden lines may be necessary for the correct placement of parts in the assembly.
Copyright by The Goodheart-Willcox Co., Inc. May not be posted to a publicly accessible website.
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Related Questions
Please solve it complete please don't copy paste
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Select the correct statement below regarding the two solid model parts shown.
(A)
(B)
It is easiest to first draw part (B) and then use SOLIDWORKS features to create
part (A).
It is easiest to first draw part (A) and then use SOLIDWORKS features to create
part (B).
Part (B) edges were created using the fillet tool rather than the chamfer tool.
Part (A) cannot be created using the extrude tool.
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(General Questions Not Directly Print Related)
1. ____________use conventional symbols with single lines to show piping and electrical wires. The parts and components are shown by symbols.
A. Diagram Assembly Drawings
B. Altered Item Drawings
C. Modified Item Drawing
D. Dimensioned drawing
2. Balloons are shown on assembly drawings to reference parts to the ___________.
A. Title Block
B. Revision Block
C. Parts List
D. Supplemental B
3.
____________use conventional symbols with single lines to show piping and electrical wires. The parts and components are shown by symbols.
A. Diagram Assembly Drawings
B. Altered Item Drawings
C. Modified Item Drawing
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7. In planning, the tool travels along the workpiece during the removal of the material on the workpiece.
8. The factors that can be manipulated in cutting process are cutting speed, feed and depth of cut.
9.In thermally assisted machining, the tool is heated which reduces the required cutting force.
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Standard time & work sampling
The following data resulted from a time study made on a horizontal milling machine:
Mean manual effort time per cycle: 4.62 min
Mean cutting time (power feed): 3.74 min
Mean performance rating: 115 percent
Machine allowance (power feed): 10 percent
Fatigue allowance: 15 percent
questions:
1.) What is the Basic Time for the manual effort?
2.) What is the Standard Time for the manual effort?
3.) What is the Standard Time for the machine?
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1. A certain batch of parts is routed through six machines in a batch production plant. The setup and operation times for each machine are given in the table below. Batch size is 200 and the average nonoperation time per machine is15 hr. Determine (a) manufacturing lead time and (b) hourly production rate for operation 4.Machine 1 2 3 4 5 6Setup time (hr) 5 3 6 4 5 3Operation time (min) 3.0 3.3 8.2 3.9 4.5 2.3
a. 6(4.3+200(3.9/60)+15) = 193.8 hours 24.2 days if 8 hour shiftb. 4(60)+200(3.9)/200 =5.1 hourly production for operation 4
2. Suppose the part in the previous problem is made in very large quantities on a production line in which an automated work handling system is used to transfer parts between machines. Transfer time between stations is 30 sec. total time required to…
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General Questions Not Directly Related to the Print
1. A ________ print is a supplemental print that provides certain types of additional information needed to produce a part
2. . Most detail drawings are __________. One multi-view drawing of one part on one drawing. (Mulitdetail/ Monodetail/ Assembly Drawing with Application Block/Bas-relief)
3. A switch, timer, or label would be examples of items that require a Purchased Part Control Diagram. T/F
Not directly related to print.
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cutting
Instructions:
Do not copy the drawing.
Draw In third-angle orthographic projection, and to scale 1:1,
the following views of the hinge:
A sectional front view on A-A
A top view
⚫ A right view (Show all hidden detail)
Show the cutting plane in the top view
. Label the sectioned view
Note:
All views must comply with the SABS 0111 Code of Practice for
Engineering Drawing.
Galaxy A05s
Assessment criteria:
⚫ Sectional front view
026
12
042
66
[30]
11
10
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How many cutting-plane lines are shown on this print?
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Manufacturing processes
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MENG364 MANUFACTURING TECHNOLOGY
1-Please Put the letter as it is and I will put the student number later
2- Please have to give me the final answer without rounding and with digit number at least 3 digit number should be include and dont forget the Unit
3- please solve the question very quickly
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what angle
what rpm
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If the answer is no can anything be done to save the part?
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PART
TOOL
S (rpm)
Depth (mm)
F (mm/min)
400
130X130X10 mm
T1 08 Flat End Mill
2000
10
9
130
P15
P16
R4
P4
P3
P13
P14
R40
P2
PL
R30
8
130
20
R4!
P12
P11
P7
P8
PO (0, -45, 2)
40
80
Fig.: A Clamping Jaw
P5
P6
P10
35
P9
08
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2. The top view as given
3. The left view after you ensure the isometric view of the component
on a A3 drawing paper within a horizontal direction. (It is recommended to sketch up the
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4. Dimension the views based on the numbers given on views. Do not try to take the
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65
20
70
125
AT
TA
30
30
07
09
32
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Recommended textbooks for you
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Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes
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