[Test Your Knowledge] Chemical Production Knowledge (63) — True or False Questions
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This post was last edited by zfy_80522 on 2010-1-26 09:28. True or False questions: (Answer format: True True True True False) 1. There is a high-temperature dusty gas stream, with dust particles having an average diameter of 2–3 μm; to achieve good dust removal results, a bag filter can be used. 2. In the filtration process, the resistance encountered by the filtrate flow is the sum of the resistance of the filtering medium and that of the filter cake； 3. A cyclone separator primarily uses inertial centrifugal force to cause particles to settle, thereby achieving separation. 4. As the inlet width B of the cyclone separator increases, its critical diameter decreases ； 5. The filtration rate is inversely proportional to particle diameter and operating pressure difference ； Answer key: Right, Right, Right, Wrong, Wrong. 4. As the inlet width B of the cyclone separator increases, its critical diameter also increases ； 5. The filtration rate is inversely proportional to the viscosity of the filtrate and the thickness of the filter residue. Note: 1) For each correct answer in this activity, 2 wealth points are awarded, with a total score of 10 wealth points. To encourage members to answer questions carefully, those who score full marks and provide explanations for any answers they consider incorrect will be rewarded with 1 Charm point. Those who do not hide their answers or do not format them as required will, in principle, not be graded. 2) Answers using the same IP are valid only for the first post. Also, please be cautious when posting; edits are invalid (except for replies on the first floor). 3) To achieve the goal of reviewing old material to gain new insights, the answer key is released the following day. Additionally, if you have any objections to the answer key for a particular question, you can post a topic thread for in-depth discussion. 4) Replies to this activity are limited to the 50th floor; replies from floors above the 50th will not be considered.
Right, right, wrong, right 1# zfy_80522
1. There is a high-temperature dusty airflow, with dust particles having an average diameter of 2–3 μm; to achieve good dust removal results, bag filters can be used. —— Incorrect 2. During the filtration process, the resistance encountered by the filtrate flow is the sum of the resistance posed by the filtering medium and the filter cake； ----Yes. 3. Cyclone separators rely primarily on the effect of inertial centrifugal force to cause particles to settle, thereby achieving separation. Yes. 4. As the inlet width B of the cyclone separator increases, its critical diameter decreases ； Yes. 5. The filtration rate is inversely proportional to the particle diameter and the operating pressure difference ； Wrong
, Right, right, wrong, wrong. 4. As the inlet width B of the cyclone separator increases, its critical diameter also increases； 5. The filtration rate is inversely proportional to the viscosity of the filtrate and the thickness of the filter residue
Right, right, wrong, wrong. 4. As the inlet width B of the cyclone separator increases, its critical diameter also increases； 5. The filtration rate is inversely proportional to the viscosity of the filtrate and the thickness of the filter residue ；
1. Wrong； There is a high-temperature dusty airflow, with dust particles having an average diameter of 2–3 μm. To achieve good dust removal results, wet dust removal methods can be used; 2. For ； 3. Yes. 4. Wrong ； As the inlet width B of the cyclone separator increases, its critical diameter also increases ； 5. Wrong ； The filtration rate is inversely proportional to the viscosity of the filtrate and the thickness of the filter residue ；
1. Wrong. There is a high-temperature, dusty airflow, with dust particles having an average diameter of 2–3 μm. To achieve good dust removal results, bag filters cannot be used, as they generally cannot withstand high temperatures; 2. Regarding ； 3. Yes. 4. Incorrect; as the inlet width B of the cyclone separator increases, its critical diameter also increases ； 5. Yes ；
Right, right, wrong, wrong. 4. As the inlet width B of the cyclone separator increases, its critical diameter also increases； 5. The filtration rate is inversely proportional to the viscosity of the filtrate and the thickness of the filter residue ；
Wrong, right, wrong, right, wrong. For the first question, wet dust removal should be used; for the fourth question, the critical diameter increases; for the fifth question, it is proportional, and inversely proportional to the viscosity of the filtrate and the thickness of the filter residue