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【Daily Question】August 30: Methods for identifying leaking tubes in the external heat exchanger of a catalytic cracking unit

2015-08-29View Original

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This post was last edited by 3FCCtaofeng on 2015-8-31 at 10:17. Daily question for the activity (single-choice question): What is the method used to determine which tube in the external heat exchanger of a catalytic cracking unit is leaking? A. Close the inlet valves of the heat extraction tubes one by one. B. Close the outlet valves of the heat extraction tubes one by one. C. Close the inlet valves of the heat extraction tubes one by one. D. Reduce the water inflow rate. Answer: C, close the inlet valves of the heat extraction tubes one by one. Everyone is encouraged to participate actively for prizes. +5 points for correct answers, +2 points for participation. One time per person only. Close this topic in two days.
Reply #22015-08-29
The method determined for identifying the leaking tube in the external heater of a catalytic cracking unit is (C). A. Close the inlet and outlet valves of the heat extraction tubes one by one. B. Close the outlet valves of the heat extraction tubes one by one. C. Close the inlet valves of the heat extraction tubes one by one. D. Reduce the water inflow rate
Reply #32015-08-29
Close the inlet and outlet valves of the heat extraction tubes one by one
Reply #42015-08-30
C. Close the inlet valves of the heat extraction tubes one by one
Reply #52015-08-30
C. Close the inlet valves of the heat extraction tubes one by one
Reply #62015-08-30
The answer is A: close the inlet and outlet valves of the heat transfer tubes one by one.
Reply #72015-08-30
Well, I don’t really understand it; I’m learning knowledge in this area
Reply #82015-08-30
A. Close the inlet and outlet valves of the heat extraction tubes one by one
Reply #92015-08-30
The method used to determine the leaking tube in an external heater of a catalytic cracking unit is (C). A. Close the inlet and outlet valves of the heat extraction tubes one by one. B. Close the outlet valves of the heat extraction tubes one by one. C. Close the inlet valves of the heat extraction tubes one by one. D. Reduce the water inflow rate
Reply #102015-08-30
The method used to determine the leaking tube in an external heat exchanger of a catalytic cracking unit is (  )a
Reply #112015-08-30
The method determined for identifying the leaking tube in the external heater of a catalytic cracking unit is (B).

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