Asked by Abhishek Prodduturi on Apr 29, 2024
Verified
A Ø30 f7 fit symbol designates ____.
A) a dimension for a hole
B) a Ø30 hole
C) a dimension for a shaft
D) a hole designed for a high precision fit
Ø30 f7 Fit
A specification for a cylindrical fit where Ø30 defines the nominal diameter in millimeters and f7 specifies the tolerance class for a hole.
High Precision Fit
Refers to a high degree of accuracy in the mating of two machine parts, ensuring minimal play or clearance between them.
- Identify and interpret tolerance symbols and their significance in design specifications.
- Gain insight into the grading system for precision grades and its repercussions on tolerance specification.
Verified Answer
RH
Ricardo HarrisonMay 04, 2024
Final Answer :
C
Explanation :
The symbol f7 indicates the tolerance level for a shaft diameter. Therefore, option C is the correct answer. Option A is incorrect because a dimension for a hole would have a different symbol. Option B is incorrect because the symbol does not indicate that it is a hole, and option D is somewhat correct but incomplete because it does not specify that it is a shaft dimension.
Learning Objectives
- Identify and interpret tolerance symbols and their significance in design specifications.
- Gain insight into the grading system for precision grades and its repercussions on tolerance specification.
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