Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Print Reading > Limits, Fits, & Tolerances > Flashcards

Limits, Fits, & Tolerances Flashcards

Module questions from the current module as well as last years module.

1
Q

What is the tolerance of 1.500 + /- .003

A

0.006

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Calculate the limits of size for 1.875 +/- .010

A

1.865-1.885

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

If a shaft is 85.05 +/- .05 and the hole is 85 +/- 1, calculate the fit.

A

Transition fit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the meaning of FAO

A

Finish All Over

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the meaning of MMC

A

Maximum Metal Condition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the meaning of A/F

A

Across Flats

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Name two pieces of information found in a revision block.

A

1) Date
2) Description of revision
3) Revision number
4) Author

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Name the three basic fits.

A

1) Clearance
2) Transition
3) Interference

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is allowance based on?

A

Maximum Metal Condition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The kind of tolerance, where the variation is in one direction only is called…

A

Unilateral tolerance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

When the variation in size can be in either direction from the basic size, the tolerance is called…

A

Bilateral tolerance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Define: Allowance

A

An allowance is the intentional difference between mating parts at maximum material condition (MMC).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Define: Clearance fit

A

A clearance fit means the shaft will always fit into the mating hole. In other words, the diameter of the shaft will always be smaller that the diameter of the mating hole, even if both parts are at MMC.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Define: Interference fit

A

An interference fit is the opposite of the clearance fit. The diameter of the shaft will always be larger that the diameter of the mating hole, even when the shaft is as small as it can be and the mating hole is as large as it can be.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Define: Transition fit

A

A transition fit means the mating parts may have some clearance or some interference when assembled. At MMC there is interference between the parts, but when the parts are less than MMC there will be a smaller degree of interference or have some degree of clearance between the parts.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the meaning of HRMS

A

Hot Rolled Mild Steel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the meaning of CRMS

A

Cold Rolled Mild Steel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the meaning of SS

A

Stainless Steel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the meaning of MS

A

Mild Steel

20
Q

What is the meaning of MST

A

Machined Steel

21
Q

What is the meaning of ASSY

22
Q

What is the meaning of BC

A

Bolt Circle

23
Q

What is the meaning of BCD

A

Bolt Circle Diameter

24
Q

What is the meaning of BHC

A

Bolt Hole Circle

25
What is the meaning of CBORE
Counterbore
26
What is the meaning of CHAM
Chamfer
27
What is the meaning of CLA
Centre Line Angle
28
What is the meaning of CL
Centre Line
29
What is the meaning of CSK
Countersink
30
What is the meaning of DIA
Diameter
31
What is the meaning of DWG
Drawing
32
What is the meaning of SF
Spotface
33
What is the meaning of STL
Steel
34
What is the meaning of SYM
Symmetry
35
What is the meaning of TPF
Taper Per Foot
36
What is the meaning of TPI
Taper Per Inch
37
What is the meaning of TR
Taper Ratio
38
What is the meaning of TYP
Typical
39
Define UNC & UNF thread series
UNC - National Coarse | UNF - National Fine
40
Thread designation "A" is a ___________ fit.
External (Alpha)
41
Thread designation "B" is a ___________ fit.
Internal (Bitch)
42
Class of thread fit 1A - 1B is for what type of fit?
Used for loose fits
43
Class of thread fit 2A - 2B is for what type of fit?
Used for commercial fits, fasteners, interchangeable parts.
44
Class of thread fit 3A - 3B is for what type of fit?
Used for high precision fits, close snug fit.
45
Define: Roughness
Roughness is defined as having irregularities in the surface texture. The average roughness is designated in micro inches, micrometers, or roughness grade numbers from N1-N12.
46
Define: Revision
Revision is a change or correction on the original drawing. The revision number is enclosed in a circle or triangle.
47
Define: Reference dimension
The reference dimension is presented on the drawing for information only. It is not used in the manufacturing of the part.

Print Reading (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions