【Pump Technology Edition: Daily Question】February 18, 2020 (Section benefit: 10 Wealth points as a reward for answering correctly before the answers are revealed)

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108. An internal diameter dial indicator can be used to measure the （） of a part’s hole.   A. Dimensional errors and positional errors B. Form and position errors C. Dimensional and shape errors. The answer to question 107 on February 17, 2020, is C. 107. A mechanical part that operates under conditions of severe shock and wear should be made using (C). A、Q235 B、15MnV C、ZGMn13? The answer to question 106 on February 16, 2020, is C. 106. The bearing that can withstand both radial and axial forces is (C) A、Centrifugal bearing?? B、Thrust bearing??? C、Centrifugal-thrust bearing. Answers are released the day before they are officially announced; those who get the answer right before the announcement receive 10 wealth points, those who get it right after the announcement receive 5 wealth points, and those who participate receive 3 wealth points. I’ve been a bit busy lately, so I’m taking some time to post questions and provide feedback on answers, but no matter how busy or late it gets, I will still post and respond to everyone. Thank you all for your continued support!