★Specialized Examination for Chemical Engineering ★ — One question per day (2016-1-6) — Points are awarded for participation
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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 (2016-1-6): 1. In gas-solid fluidization systems, the quality of fluidization refers to the degree of uniformity in the fluidized bed, that is, the uniformity of gas distribution and gas-solid contact. What are the main factors affecting the fluidization quality of a fluidized bed? A: Gas flow distribution plate, density of the gas medium, density of solid particles. B: Gas flow distribution plate, internal structure of the equipment, particle size distribution of solids, and gas velocity. C: Pressure inside the fluidized bed layer, internal structure of the equipment, particle size distribution of solids, and gas velocity. D: Pressure drop inside the fluidized bed layer, gas temperature, gas flow distribution plate. Answer: B
B “One question per day” really has only one question?
1. For gas-solid fluidization systems, the fluidization quality refers to the degree of uniformity in the fluidized bed, that is, the uniformity of gas distribution and gas-solid contact. What are the main factors affecting the fluidization quality of a fluidized bed? B: Gas flow distribution plate, density of the gaseous medium, density of solid particles. B: Gas flow distribution plate, internal structure of the equipment, particle size distribution of solids, and gas velocity. C: Pressure inside the fluidized bed layer, internal structure of the equipment, particle size distribution of solids, and gas velocity. D: Pressure drop within the fluidized bed layer, gas temperature, gas flow distribution plate
1. For gas-solid fluidization systems, the fluidization quality refers to the degree of uniformity in the fluidized bed, that is, the uniformity of gas distribution and gas-solid contact. What are the main factors affecting the fluidization quality of a fluidized bed? (B) A: Gas flow distribution plate, density of the gas medium, density of solid particles; B: Gas flow distribution plate, internal structure of the equipment, particle size distribution of solids, and gas velocity; C: Pressure inside the fluidized bed layer, internal structure of the equipment, particle size distribution of solids, and gas velocity; D: Pressure drop inside the fluidized bed layer, gas temperature, gas flow distribution plate
1. For gas-solid fluidization systems, the fluidization quality refers to the degree of uniformity in the fluidized bed, that is, the uniformity of gas distribution and gas-solid contact. What are the main factors affecting the fluidization quality of a fluidized bed? D: Gas flow distribution plate, density of the gaseous medium, density of solid particles. B: Gas flow distribution plate, internal structure of the equipment, particle size distribution of solids, and gas velocity. C: Pressure inside the fluidized bed layer, internal structure of the equipment, particle size distribution of solids, and gas velocity. D: Pressure drop within the fluidized bed layer, gas temperature, gas flow distribution plate
1. For gas-solid fluidization systems, the fluidization quality refers to the degree of uniformity in the fluidized bed, that is, the uniformity of gas distribution and gas-solid contact. What are the main factors affecting the fluidization quality of a fluidized bed? (B) A Gas flow distribution plate, density of the gas medium, density of solid particles; B Gas flow distribution plate, internal structure of the equipment, particle size distribution of solids, and gas velocity; C Pressure inside the fluidized bed layer, internal structure of the equipment, particle size distribution of solids, and gas velocity; D Pressure drop inside the fluidized bed layer, gas temperature, gas flow distribution plate
B Air flow distribution plate, internal structure of the equipment, solid particle size distribution, and gas velocity