Catalytic Coking Reformate Blending Version 20190710
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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: Compared to the pressure of the pump itself, what is the sealing oil pressure in a typical single-stage pump? ( ) A. Low B. High C. The same D. Unable to determine Answer: B 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.
This question doesn’t seem to be very precise; if it’s about the pressure of a mechanical pump, it would be more appropriate to refer to the working pressure within the pump’s sealing chamber. It’s a bit confusing whether the term \"pump pressure\" refers to the inlet pressure or the outlet pressure
Single-choice question: Generally, the sealing oil pressure of a single-stage pump is (a) compared to the pump’s operating pressure. A、Low B、High C、Same D、Cannot be determined