【Daily Question: Pump Equipment】Fill-in-the-blank question, 3/11/2019
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bk14.jpg Rules for fill-in-the-blank questions: 1. If both answers are incorrect, +2 wealth is given for active participation; if one answer is correct and the other is incorrect, +5 wealth is given; if both answers are correct, +8 wealth is given. 2. If only one answer is provided, unless it is clear which question’s answer it is, a correct answer earns +5 wealth points, while an incorrect answer earns +2 wealth points; in all other cases, it is counted as active participation and grants +2 wealth points. 3. Rewards for answers are available once per person only. 4. Each reply allows scoring for only one person. 5. The answer and its explanation will be visible after responding. 6. The reward is valid for 48 hours; no reward will be given if the deadline is exceeded. The student won another award; come by here every day. There are three units used to measure vibration levels of testing equipment: (), (), and (). Vibration is evaluated based on three parameters: displacement, velocity, and acceleration. The most widely used vibration unit among them is ( ). Answer: mm (amplitude), mm/s (vibration velocity), mm/s2 (vibration acceleration) ； mm/s
mm, mm/s mm/s^2 velocity
mm, mm/s, mm/(s^2) mm
mm, mm/s, mm/(s^2), mm/s
Amplitude, vibration velocity, vibration acceleration, vibration velocity.
There are three units for measuring vibration values of equipment: (mm), (mm/s), and (mm/s2). Vibration is evaluated based on three parameters: displacement, velocity, and acceleration. The most widely used unit for vibration is (mm/s).
(mm amplitude), (mm/s vibration velocity), (mm/s² vibration acceleration)； mm/S
mm (amplitude), mm/s (vibration velocity), mm/s2 (vibration acceleration)； mm/s
um, mm/s, g, g
Vibration displacement value (um), vibration velocity value (mm/s) and vibration acceleration value (g) in mm
Displacement in mm； Speed mm/s ； Acceleration mm/(s^2)