【Pump Technology Edition: Daily Question】January 17, 2020 (Spring Festival bonus: 10 wealth points for those who answer correctly before the answers are revealed)

2020-01-17View Original

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This post was last edited by Xiuxi who fixes pumps on 2020-1-18 at 23:43. 76. When a vertical plane intersects a sphere, what is the shape of the intersection curve? ?A. Straight line B. Circle C. Ellipse. The answer to the question from yesterday was A. 74. A piston ring is not a complete circle; it has an opening, and its diameter in its free state (A) is equal to the diameter of the cylinder. A、Greater than B、Equal to C、Less than (Answers are released the day before they are made public; 10 wealth points for correct answers before publication, 5 wealth points for correct answers after publication, and 3 wealth points for participation)

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【Pump Technology Edition: Daily Question】January 17, 2020 (Spring Festival bonus: 10 wealth points for those who answer correctly before the answers are revealed)

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