Catalytic Coking Reformate Blending Version 20190909

2019-09-09View Original

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Participation: Prize 1 Wealth； Correct answer: 3 Wealth as a reward. https://bbs.hcbbs.com/static/image/hrline/2.gif https://bbs.hcbbs.com/static/image/hrline/3.gif Multiple-choice question: Before purging a heat exchanger, the shell side or tube side that is not being purged should be ( ). A. Drain completely B. Close the inlet and outlet valves C. Keep the inlet and outlet valves at a certain opening degree D. Leave the drain open Answer: C https://bbs.hcbbs.com/static/image/hrline/1.gif https://bbs.hcbbs.com/static/image/hrline/2.gif Note: The answer will be announced automatically after two days.

Reply #22019-09-09

C. The inlet and outlet valves remain at a certain degree of openness

Reply #32019-09-09

C. The inlet and outlet valves remain at a certain degree of openness

Reply #42019-09-09

C. The inlet and outlet valves remain at a certain degree of openness

Reply #52019-09-09

C. The inlet and outlet valves remain at a certain degree of openness

Reply #62019-09-09

C. The inlet and outlet valves remain at a certain degree of openness

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