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    Chemical Engineering Interview Questions & Answers

    Below we have listed all the Chemical Engineering Interview Questions and answers. Feel free to comment on any Chemical Engineering Interview Questions or answer by the comment feature available on the page.

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    What is Chemical engineering?
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    How many grams per liter would there be in a 0.35 N (Normality) Citric acid solution?
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    How can wet carbon dioxide be responsible for a corrosion problem in iron-containing metals?
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    How is plate heat exchangers used in an ammonia refrigeration system?
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    Are there flow velocity restrictions to avoid static charge build up in pipelines?
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    Are some heat transfer services more prone to tube vibration that others for a shell and tube exchanger?
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    What is a common failure mechanism for above ground atmospheric storage tanks?
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    What are the advantages and disadvantages of using gear pumps?
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    How do you design a vapor-liquid separator or a flash drum?
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    What is a good source of information for the design of pressure vessels?
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    What are some common precipitating agents used to remove metals from aqueous waste streams?
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    What is happening when paint dries?
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    Explain the functioning of a three-way catalytic converter.
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    What are some of the consequences of an undersized kettle type reboiler?
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    How does a tank-blanketing valve operate?
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    What is the difference between CFM (cubic feet per minute) and SCFM (standard cubic feet per minute)?
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    What does the catalystic converter on an automobile really do?
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    What is the largest application for surfactants?
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    During the welding process, the two metal pieces being joined are subject to extreme temperatures and can cause the crystalline structure of the metal to pass through various metallurgical phases. As a result, hardening (and embrittlement) of the metal can occur to varying degrees (usually dependent on carbon content). Heat treatment is designed to reduce the hardness in the heat-affected zone of the metals and increase ductility in these sections. Various pressure vessel codes contain the specifics regarding the procedures for post-weld heat treatment. Heat is usually held for one hour per inch of thickness of the metal. The temperature used is based on the "P-number" of the metals. P-numbers are assigned based on the chemical composition of the metals. Holding temperatures can range from 1100-1350 ?F (593-732 ?C).
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    Are there any methods of preventing cracking of carbon steel welds in refining environments?
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