【Daily Question No. 138】2017.12.09
Thread Content
【Daily Question No. 138】December 09, 2017: Which of the following statements is incorrect? （ ） Ball valves of medium, small, and tiny diameters have a relatively simple structure, are compact in size, and light in weight. B. Among various types of valves, ball valves have the lowest fluid resistance. C. The flow direction of the medium for ball valves is not restricted. D. The opening and closing torque of a ball valve is greater than that of a plug valve. For management purposes, if you need to view content from a few days ago, please access it through the summary post below. 2017 Q&A Summary Thread (updates starting now) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates starting now) http://bbs.hcbbs.com/thread-1657794-1-1.html 2017 Daily Image Summary Thread https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1875160 2017 LNG Version Daily Question Catalog https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1804162 2016 Q&A Summary Thread (updates completed) http://bbs.hcbbs.com/thread-1597792-1-1.html
The following statement is incorrect (dD). Ball valves of medium, small, and tiny diameters have a relatively simple structure, are compact in size, and light in weight. B. Among various types of valves, ball valves have the lowest fluid resistance. C. The flow direction of the medium for ball valves is not restricted. D. The opening and closing torque of a ball valve is greater than that of a plug valve.