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Aviation Institute of Maintenance, Dallas *
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2
Subject
Mechanical Engineering
Date
Feb 20, 2024
Type
docx
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1
Uploaded by KidMetal13061
Project G19
Given:
A collection of aircraft parts selected by the instructor and common
precision measuring instruments used by the maintenance technician.
Performance:
Make a precision measurement with an instrument that has a Vernier
scale. Check for Proper calibration of a micrometer
Standard:
The student will select the correct measuring tool and will be able to
demonstrate its use within the normal range of accuracy for that device.
Name: Michael Noonan Score: ____________
Procedures:
1. Use micrometers and other instruments that has a Vernier scale to perform precision measurements.
2. Record measurements of each individual component from the Engine Component List.
Hardware List
Measurement
1.
Check for Proper Calibration of the Vernier Micrometer
No
2.
Check for Proper Calibration of the Vernier Caliper
No
3.
Diameter of Hex-Head Bolt head
0.542
4.
Thickness of Hex-Head Bolt head
0.226
5.
Diameter of Hex-Head Bolt Shank
0.105
6.
Total Length of Hex-Head Bolt
2.725
7.
Calculate the Length of a Hex-Head Bolt Shank
1.350 8.
Thickness of a Washer
0.064
9.
Diameter of Washer
0.614
10.
Diameter of Countersunk Rivet
0.125
11. Length of Countersunk Rivet
0.250
Project G19 Rev1 9-21-2022
Page 1 of 1
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Related Questions
13. What type of geometric tolerance has no datum features?
14. A theoretically exact dimension is called a
15. The
feature symbol specifies that a group of two or more interrupted features of size are to be considered one single feature of size.
16. For an individual regular feature of size, no element of the feature shall extend beyond the maximum material condition boundary (envelope) of perfect form. This statement is the essence of
17. What is the name of the symbol used to identify physical features of a part as a datum feature and must not be applied to centerlines, center planes, or axes?
18. The
is the condition in which a feature of size contains the maximum amount of material within the stated limits of size.
19. The total positional tolerance equals the sum of the
tolerance and the
tolerance.
20. Refer to the figure below. Read the feature control frame in the figure and write it out below.
Ø
010M ABMCM
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Question 4
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Read the following statement and choose the most appropriate answers.
Statement 1 Instrument is designed to measure minimum and maximum values of a quantity are
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Statement 2 During the measurement process the maximum error that is expected is known as
tolerance.
Statement 1 is false and the statement 2 is true
Both Statements are false
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Statement 1 is true and the statement 2 is false
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The closeness of output readings when the same input is applied repetitively over a short period of time when there is change in location.
The closeness of output readings when the same input is applied repetitively over a short period of time and there is no change in observer.
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I need help answering these 3 parts.
1. The size description of an object on the print can best be described as dimensioning.
TRUE or FALSE
2. The amount that any one dimension can vary is referred to as the tolerance.
TRUE OR FALSE
3. While the MMC of a feature is important, for certain design calculations, it is important to also understand the LMC.
TRUE or FALSE
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In the context of our teaching and learning, which
one of the below statements is mostly correct
about in the creation of detailed design of a
component?
In deciding the tolerance, the guidance is the
tighter the better.
I am the designer, so I decide the required
tolerance as l like.
The tolerance is determined by the function.
The chance to manufacture component to the
exact size is like to win a lottery. I would enjoy
winning a lottery, so I should specify all the
dimensions as exact, no tolerance to be
considered at all.
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With explain
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Subject name: Theory and design for Mechanical measurements
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Say, you have a thermometer and you are checking the temperature of a body that has a temperature of 36o Using your thermometer five times, it gives you the following measurements: 36oC, 35.6oC, 36oC, 37oC, and 36.2oC. What can we conclude about the accuracy and the precision of the thermometer?Group of answer choices The thermometer is accurate and precise. The thermometer is accurate but not precise. The…
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Chapter 3:
13. What type of geometric tolerance has no datum features?
14. A theoretically exact dimension is called a
15. The
feature symbol specifies that a group of two or more interrupted features of size are to be considered one single feature of size.
16. For an individual regular feature of size, no element of the feature shall extend beyond the maximum material condition boundary (envelope) of perfect form. This statement is the essence of
17. What is the name of the symbol used to identify physical features of a part as a datum feature and must not be applied to centerlines, center planes, or axes?
18. The
is the condition in which a feature of size contains the maximum amount of material within the stated limits of size.
19. The total positional tolerance equals the sum of the
tolerance and the
tolerance.
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The discrimination of a steel rule scale is determined by the spacing between each graduation
True/False (select one answer)
O True
O False
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Given the following sentence descriptions of the geometric
tolerance information, correctly sketch the feature control
frames for each and include in your lab report.
i. The planar surface must be parallel within a thousandth
of an inch tolerance zone relative to datum feature A.
ii. The axis of a cylinder must be perpendicular within one-
hundredth of a millimeter cylindrical tolerance zone at
maximum material condition relative to datum feature D.
iii. The total runout of the surface must be within a five-
hundredths of a millimeter tolerance zone relative to
datum feature A.
13
iv. The total surface profile of the surface must be
within a two-thousandths of an inch tolerance zone
relative to datum feature A.
v. The axis of a hole must be positioned within a five-
thousandths of a millimeter cylindrical tolerance
zone at maximum material condition relative to
primary datum feature D, secondary datum feature
E, and tertiary datum feature F.
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Match the terms precision and accuracy to their definitions.
Precision
2
Accuracy
Match each of the options above to the Items below.
The number of significant digits or the closeness of different measurements of the same quantity to each other.
The closeness of the measured or calculated value to the true value
1
2
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Weights measured in grams of randomly selected M&M plain candies:
0.957 0.912 0.925 0.886 0.920 0.958 0.915 0.914 0.947 0.939 0.842
What is the z-score for an M&M that weighs less than 0.866 grams?
(round to the tenths place)
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None
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Read the following statement and choose the
most appropriate answers.
Statement 1 For a measuring instrument,
how close the output reading is to the true
reading is known as Accuracy.
Statement 2 Linearity is how minimum and
maximum values an instrument is designed
to measure.
Statement 1 is false and the statement 2
is true
Both Statements are false
Statement 1 is true and the statement 2
is false
Both Statements are true
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Q. Based on the calibration curves, find out the respective sensitivities of the
displacement measurement.
1.
Strain (UE)
Strain (UE)
0.01
0.00
-0.01
-0.02
-0.03
-0.04
0.0
0.01
0.00
-0.01
-0.02
0
-0.03
-0.0003-0.0009
-0.04
Strain vs. Displacement (Pushing)
-0.0369*x + -3.1E-03 R² = 0.984
0.0
0:0063
-0.011
0.1 0.2 0.3
-0.0152
-0.0049
0.1 0.2
-0.0088
-0.0195
0.3
Strain vs. Displacement (Releasing)
-0.0378*x + 2.16E-03 R² = 0.991
-0.0231
-0.0265
-0.0124
-0.0163-
0.4 0.5 0.6 0.7 0.8 0.9 1.0
Displacement (in)
-0.02
-0.0298
0.4 0.5 0.6
Displacement (in)
-0.0325
-0.0235
0.7
-0.0272
-0.0352
0.8
-0.0379
-0.0318
-0.0379
0.9 1.0
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2- When a second letter is used in instrumentation symbols, e.g., Pressure
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3- P&ID contains the sensor details such as physical principle and
measurement range.
4- FRC 82516: Flow Recording Controller, area no 825, process unit 8, loop
number 16.
5- P&ID excludes equipment identification.
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(d) Based on the situation below, give one type of error faced by Ali's and give the
suggestion how Ali's can make the reading become accurate and precise.
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compared to the actual values of the tubes as shown in Table 1:
Tubes number
Actual value
Reading measurement
0.05 mm
No tube
Tube 1
5.05 mm
5 mm
Tube 2
10.05 mm
10 mm
Tube 3
12.05 mm
12 mm
Table 1
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Related Questions
- 13. What type of geometric tolerance has no datum features? 14. A theoretically exact dimension is called a 15. The feature symbol specifies that a group of two or more interrupted features of size are to be considered one single feature of size. 16. For an individual regular feature of size, no element of the feature shall extend beyond the maximum material condition boundary (envelope) of perfect form. This statement is the essence of 17. What is the name of the symbol used to identify physical features of a part as a datum feature and must not be applied to centerlines, center planes, or axes? 18. The is the condition in which a feature of size contains the maximum amount of material within the stated limits of size. 19. The total positional tolerance equals the sum of the tolerance and the tolerance. 20. Refer to the figure below. Read the feature control frame in the figure and write it out below. Ø 010M ABMCMarrow_forwardQuestion 4arrow_forwardRead the following statement and choose the most appropriate answers. Statement 1 Instrument is designed to measure minimum and maximum values of a quantity are known as span. Statement 2 During the measurement process the maximum error that is expected is known as tolerance. Statement 1 is false and the statement 2 is true Both Statements are false Both Statements are true Statement 1 is true and the statement 2 is falsearrow_forward
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