★Specialized Examination in Chemical Engineering ★ — One question per day (2015-11-25) — Points are awarded for participation [

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This post was last edited by zshiwei2008 on 2015-11-26 at 16:10. Points system for the daily question: Participation – 1~3 points; Correct answer – 5 points; In-depth analysis – 5~10 points. The answer is provided the next day. Due to limited capabilities, I am unable to provide more in-depth explanations for each question; therefore, on the second day, in addition to offering reference options, I will also remove the restriction on reading replies. I hope that all candidates can learn from one another and improve together! Daily Question (2015-11-25): 1. When the flow rate is constant and the flow enters the square-law region of flow resistance, what determines the minimum net positive suction head required for a centrifugal pump? A. The structural dimensions of the pump B. The structural dimensions of the pump and the pressure at the liquid supply point C. The structural dimensions of the pump and the properties of the liquid being transported D. The pressure at the liquid supply point and the properties of the liquid being transported. 2. Which of the following statements is correct regarding adiabatic reaction processes? A The total enthalpy of the incoming and outgoing materials is equal, and their temperatures are also equal. B The total enthalpy of the incoming and outgoing materials is equal, but their temperatures are not equal. C The total enthalpy of the incoming and outgoing materials is not equal, and their temperatures are also not equal. D The total enthalpy of the incoming and outgoing materials is not equal, but their temperatures are equal. Answer: Answer to question 1: A. Answer to question 2: B