High School

A surface plate and mounted dial indicator are used to inspect which geometric tolerance?

Possible Answers:

A. Perpendicularity
B. Straightness
C. Parallelism
D. Flatness

Answer :

Final answer:

The tools mentioned in the question are used primarily to inspect the geometric tolerance of flatness. A surface plate provides a reference plane, while a dial indicator measures deviations from true flatness. Thus, the correct answer is Flatness.


Explanation:

Understanding Geometric Tolerance Inspection

A surface plate and mounted dial indicator are commonly used in precision engineering to inspect various geometric tolerances. The purpose of utilizing these tools is to ensure that manufactured components meet specific design specifications accurately.

The correct answer to the question regarding which geometric tolerance is inspected with a surface plate and dial indicator is Flatness. Flatness tolerances specify that a surface must not deviate from a perfect plane beyond a specified limit, and the surface plate serves as a reference plane against which measurements can be taken.

In addition, while the dial indicator can be used for various other tolerances, the most common application with a surface plate is for measuring flatness, as it allows for precise height and deviation measurements which help verify if the surface adheres to the required specifications. For example, if a component's surface does not lie flat within the desired limits, it may not function correctly when assembled with other parts.


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