36. Which is not feature of rotary pumps?
(A) Wear decreases the clearances with consequent loss of efficiency, especially when handing low viscosity fluids.
(B) They are self-priming.
(C) They are capable of producing high vacuum.
(D) They give a steady flow, but are less efficient than reciprocator because differential pressure between suction and discharge.

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統計： A(380), B(150), C(206), D(159), E(0) #1212246

詳解 (共 2 筆)

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36.哪個不是旋轉泵的特點？ A....
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#5903577

36. 迴轉泵不具備以下哪項特點？
(A) 磨損會減小間隙，從而導致效率損失，特別是在處理低粘度流體時。
(B) 它們是自吸式的。
(C) 它們能夠產生高真空。
(D) 它們提供穩定的流量，但由於吸入和排出之間的壓差，效率低於往復機。

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The feature of rotar...
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