When a part is touching primary and secondary datum planes and comes in contact with a tertiary plane, it theoretically touches the tertiary plane in ____.

A) four or more points
B) three points
C) two points
D) one point

Question

Emilee Crowder · Accepted Answer

Final Answer : D, Explanation :  When a part is touching primary and secondary datum planes and then comes in contact with a tertiary plane, it theoretically touches the tertiary plane at one point. This is because the primary datum establishes a plane, the secondary datum establishes a line (requiring two points of contact), and the tertiary datum establishes a single point of contact, ensuring full spatial constraint without over-constraining the part.

When a part is touching primary and secondary datum planes and comes in contact with a tertiary plane, it theoretically touches the tertiary plane in ____.

A) four or more points
B) three points
C) two points
D) one point

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Learning Objectives

Learning Objectives

Related questions

When a part is touching primary and secondary datum planes and comes in contact with a tertiary plane, it theoretically touches the tertiary plane in ____.A) four or more pointsB) three pointsC) two pointsD) one point

Definitions

Learning Objectives

Learning Objectives

Related questions

When a part is touching primary and secondary datum planes and comes in contact with a tertiary plane, it theoretically touches the tertiary plane in ____.

A) four or more points
B) three points
C) two points
D) one point