【Pump Technology Edition Daily Question】January 31, 2020 (Spring Festival bonus: 10 wealth points for those who answer correctly before the answers are revealed)

2020-01-31View Original

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90. When fitting thin-walled bearing shells to bearing housings, in order to achieve a tight fit, an appropriate amount of interference is necessary; the cross-section of the bearing shell should be ( ) compared to that of the bearing housing. A. Higher B. Lower C. At the same level. Answer to question 89: A. When working at heights on towers, equipment, and containers, a fitter should use (A) and secure it with a rope. A. Fixed wrench B. Adjustable wrench C. Specialized wrench. (Answers are released the day before they are announced; those who get it 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.)

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【Pump Technology Edition Daily Question】January 31, 2020 (Spring Festival bonus: 10 wealth points for those who answer correctly before the answers are revealed)

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