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One question per day; no prize for correct answers, it’s just for entertainment

2019-12-04View Original

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32. The ( ) error in the support seat hole and the front and rear necks of the spindle causes the inner and outer raceways of the bearing to tilt relative to each other. A. Parallelism B. Positional accuracy C. Circular runout D. Coaxiality? The answers to the question from yesterday were: D, C, B, A. 31. Depending on the tolerance class of the part being measured, a vernier caliper is suitable for ( ) ; A micrometer is suitable for ( ) ; A dial indicator is suitable for ( ) ; Lever micrometers and lever calipers are suitable for ( ). ? A、IT5~IT6 B、IT7~IT10? C、IT8~IT11??? D、IT10~IT16??

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