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Worksheets2.1.1 Unit Review
Total questions: 43
Worksheet time: 43mins
A piece has a dimension of 120" ± 2". What is the maximum acceptable length?
120"
118"
122"
124"
When a hole is always smaller than the part being placed inside of it, what type of fit is this?
Clearance
Interference
Transition
Tension
The overall width of a part is dimensioned as 3.00 ± 0.02. What is the upper limit?
3.00
+0.02
3.02
0.04
The overall width of a part is dimensioned as 3.00 ± 0.02. What is the tolerance?
3.00
2.98 to 3.02
0.02
0.04
The diameter of a hole is dimensioned as 0.750 ± 0.003. Which of the following could be the diameter of a peg that has clearance fit with the hole?
0.750 ± 0.003
0.750 ± 0.001
0.730 ± 0.010
0.700 ± 0.050
Which type of tolerance is used for the overall height of this part?
Limit dimensions
Bilateral tolerance
Unilateral tolerance
Religious tolerance
Which type of tolerance is used for the diameter of this hole?
Limit dimensions
Bilateral tolerance
Unilateral tolerance
One-way tolerance
These are the general tolerances provided on a drawing. What would be the upper limit for a specified dimension of 4.25?
4.35
4.26
0.020
4.46
These are the general tolerances provided for a drawing. What would be the tolerance for a specified dimension of 0.405?
0.005
0.010
0.400 to 0.410
0.050
Use the following information and the Empirical Rule to estimate the answer.
The ages of golfers are normally distributed, with a mean of 38 and a standard deviation of 4.
Find the percentage of golfers that are between 30 and 46 years old.
68%
94%
95%
99.7%
This data is normally distributed. What percent of the data is in the shaded region?
68%
95%
99.7%
50%
Section A-A is a section view of an Axle. What is the Maximum Material Condition(MMC) of the Axle?
.754
.750
.753
.758
Section A-A is a section view of an Axle. What is the Least Material Condition (LMC) of the Axle?
.754
.747
.753
.758
Section B-B is a section view of a wheel. What is the Maximum Material Condition(MMC) of the Wheel?
.753
.747
.754
.758
Section B-B is a section view of a Wheel. What is the Least Material Condition(LMC) of the Wheel?
.753
.747
.758
.754
What is the Allowance between the Axle and the Wheel?
.011
.005
.001
.007
What type of tolerance uses a table on the drawing and is based on number of decimal places?
Limit Dimensions
Bilateral
Unilateral
General
What type of tolerance allows equal variation, both larger and smaller, than the specified dimension?
Limit Dimension
Unilateral
Bilateral
General
What type of tolerance states both the upper limit and lower limit, without needing to calculate them?
Limit Dimension
Bilateral
Unilateral
General
What type of tolerance is shown here? 2.50 ±0.02
Limit Dimensions
Bilateral
Unilateral
General
What type of tolerance is circled in this drawing?
Limit Dimensions
Bilateral
Unilateral
General
What is upper limit for this tolerance? 0.250±0.01
.251
.250
.260
.02
What is the total tolerance for this dimension? 0.250±0.01
.251
.250
.260
.02
Why are tolerances important in engineering drawings?
Variation is unavoidable in manufacturing
Tolerances allow the designer to control variation
The wrong tolerance can add cost or make a part unusable
all of the above
The overall width of a part is dimensioned as 3.00 ± 0.02. What is the specified dimension?
3.00
3.02
.02
.04
The overall width of a part is dimensioned as 3.00 ± 0.02. What is the total tolerance?
3.00
2.98 to 3.02
.04
.02
Which of these is NOT a negative consequence of tolerances being too small?
Higher manufacturing costs
More precise manufacturing required
Increased risk of parts not fitting together correctly
More inspection required after manufacturing
Which type of tolerance is used for the diameter of this hole?
Limit dimensions
Bilateral tolerance
Unilateral tolerance
One-way tolerance
The shaft is smaller than the hole, this is called:
Transition Fit
Clearance Fit
Interference Fit
Loose Fit
The diameter of a hole is 1.00 ± 0.03. Which of these diameters would be used when finding the MMC?
0.97
1.00
1.03
0.06
The overall height of an object is 1.750 ± 0.005. Which of these heights would be used when finding the MMC?
1.745
1.750
1.755
0.010
Which of these terms best describes allowance?
Minimum clearance
Minimum interference
Internal LMC - External LMC
Internal MMC - External LMC
The diameter of a hole is 0.50 ± 0.02. The pin that is inserted into the hole has diameter 0.53 ± 0.02. Which term best describes this fit?
Clearance
Interference
Transition
Variance
The diameter of a hole is 0.50 ± 0.02. The pin that is inserted into the hole has diameter 0.53 ± 0.02. What is the allowance?
0.01
0.02
0.03
0.07
