Discussion
Comparing datum with chain dimensioning for positioning four holes accurately, datum dimensioning
Answer: A
Correct answer: keeps each hole's tolerance independent of the others
Measuring every hole from the same datum face means each position depends on one dimension and one tolerance, so an error in one does not displace any other. In a chain the errors accumulate, and the last hole carries the sum of them all. Datum dimensioning usually needs the same number of dimensions, not fewer, and tolerances must still be stated.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development