9. Which type of valve should be installed where an undesired reversal of flow is restricted on the piping line？ (A)Sluice valve (B)Needle valve (C)Check valve (D)Globe stop valve

9. Which type of valve should be installed where an undesired reversal of flow is restricted on the piping line？
(A)Sluice valve
(B)Needle valve
(C)Check valve
(D)Globe stop valve

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統計： A(0), B(0), C(2), D(0), E(0) #4067954

詳解 (共 2 筆)

Jerry

B1 · 2026/10/27

#7634397

答案是 (C) Check valv...

(共 259 字，隱藏中）

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回報考生賺奶粉求給讚與5星好評

B2 · 2026/10/27

#7634696

✅ 正確答案：(C) Check val...

(共 444 字，隱藏中）

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12. The principal reason for turbocharging is to increase the power output of an engine of given size and speed, by enabling the cylinders to be charged with air at an elevated pressure and, therefore, at a higher density than air at atmospheric pressure. What is the main purpose to use a turbocharger？ (A)To elevate the density of air in order to decrease the pressure in cylinder. (B)To elevate the pressure of air in order to decrease the density in cylinder. (C)To improve the power output of an engine of given size and speed by increasing the compressed air intake temperature. (D)To improve the power output of an engine of given size and speed by increasing the density of charged air.

9. Which type of valve should be installed where an undesired reversal of flow is restricted on the piping line？
(A)Sluice valve
(B)Needle valve
(C)Check valve
(D)Globe stop valve

詳解 (共 2 筆)

相關試題

相關試卷

9. Which type of valve should be installed where an undesired reversal of flow is restricted on the piping line？(A)Sluice valve(B)Needle valve(C)Check valve(D)Globe stop valve

詳解 (共 2 筆)

相關試題

相關試卷

9. Which type of valve should be installed where an undesired reversal of flow is restricted on the piping line？
(A)Sluice valve
(B)Needle valve
(C)Check valve
(D)Globe stop valve