【Daily Question: Pump Equipment】True or False Question, 1.4.2019

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bk03.jpg Rules for true/false questions: 1. A reward of 2 Wealth is given for actively attempting both questions despite getting them wrong; 2 Rewards of 4 Wealth are given for getting one question right and the other wrong; 6 Wealth is given for getting both questions correct ； 2. Rewards for answers are available once per person only ； 3. Each reply allows for one management rating only ； 4. The answer and its explanation will be visible after responding ； 5. The reward is valid for 48 hours. Studying* and winning awards again; come by here every day. 1. Compared to plum blossom-shaped elastic rubber (claw-type) couplings, diaphragm couplings have a greater capacity for compensation, but their temperature resistance is lower ( ). 2. The reason why centrifugal pumps can only transport liquids and not gases is that liquids have a higher specific gravity; they are subjected to greater centrifugal force due to the rotation of the impeller, which allows sufficient negative pressure to be created at the inlet, enabling liquid to continuously flow into the pump’s inlet. ( ) Answer: 1. Incorrect, 2. Correct