Production Technology [Daily Question] Tuesday, 10.01.2012

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This post was last edited by Refinery Operator on 2012-1-11 12:02. True or False question: 1. The outer diameter of the floating head tube sheet in a floating head heat exchanger should be smaller than the outer diameter of the shell; to avoid excessive bypass clearance, it is better for the diameter difference between the two to be as small as possible. ( )2. In accordance with the provisions of the \"Safety Technical Inspection Regulations for Steam Boilers,\" during the installation process, if the installing party detects any quality issues in the pressure-bearing components that could affect their safe use, it must stop the installation and inform the local boiler and pressure vessel safety inspection authority. ( )3. As stipulated in the \"Safety Technical Inspection Regulations for Steam Boilers\": before inspectors enter the boiler drum, furnace, or flue ducts, it is necessary to cut off the smoke, air, water, and steam pipelines connected to adjacent boilers. ( ) 4. In accordance with the provisions of the \"Safety Technical Inspection Regulations for Steam Boilers,\" when using electric lights for inspection inside the boiler drum, a lighting voltage of 24V may be employed. ( ) Notes: 1. Please hide your replies; for instructions, see: http://bbs.hcbbs.com/thread-492556-1-1.html. 2. Do not edit after replying. 3. There must be a reward for participants. Answer: 1. Wrong 2. Right 3. Right 4. Right