Production Technology [Daily Question] Friday, November 25, 2011

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This post was last edited by Refinery Operator on 2011-11-26 at 11:58. Multiple-choice question: 1. In absorption operations, reducing the amount of absorbent used will result in an increase in the concentration of exhaust gases ( ). A. Increase B. Decrease C. Remain unchanged D. Unable to determine 2. If the exhaust gas from the absorption tower exceeds the specified limits, what might be the possible causes? A. Increase in tower pressure B. Cooling of the absorbent C. Increased amount of absorbent used D. Decrease in the purity of the absorbent 3. The ( ) of the feed does not affect the theoretical number of theoretical plates in distillation. A. Location ； B. Thermal state ； C. Composition ； D. Traffic. Note: 1. Please hide your replies; for instructions, see: http://bbs.hcbbs.com/thread-492556-1-1.html. 2. Do not edit after replying. 3. All participants must receive a reward. Answer: A D D