【Daily Question No. 082】2018.03.23

2018-03-23View Original

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【Daily Question No. 082】March 23, 2018: Which of the following statements regarding internal leakage in valves is incorrect? A. The presence of impurities between the valve’s operating element and the seat seal can cause internal leakage in the valve. B. The presence of impurities between the valve’s operating element and the seat seal will definitely cause internal leakage in the valve. C. Leakage that occurs at the junction where the valve packing meets the valve stem and the packing box is considered external leakage. D. Leakage at the contact point between the valve’s operating element and the seat seal is internal leakage. Reply again to see the reference answers; answering the key points is sufficient to earn points. B \"My Registration Season\" event – (currently ongoing in the Chemical Engineering section) https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1897835 Summary of daily questions related to chemical engineering registration in 2017: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1866965 Summary post of daily questions for the Chemical Engineering Engineer registration program in 2018: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888974

Reply #22018-03-23

B. The presence of impurities between the valve’s moving parts and the valve seat seal will definitely cause internal leakage in the valve

Reply #32018-03-23

B. The presence of impurities between the valve’s moving parts and the valve seat seal will definitely cause internal leakage in the valve

Reply #42018-03-23

B. The presence of impurities between the valve’s moving parts and the valve seat seal will definitely cause internal leakage in the valve

Reply #52018-03-23

B. The presence of impurities between the valve’s moving parts and the valve seat seal will definitely cause internal leakage in the valve

Reply #62018-03-23

B. The presence of impurities between the valve’s moving parts and the valve seat seal will definitely cause internal leakage in the valve

Reply #72018-03-23

B. The presence of impurities between the valve’s moving parts and the valve seat seal will definitely cause internal leakage in the valve

Reply #82018-03-23

D. Leakage at the sealing contact between the valve disc and the valve seat is considered an internal leak

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