[Test Question 025] Boiler Basic Questions

Thread Content

This post was last edited by zgj2405 on 2009-11-27 13:55. Please hide the reply. Please be careful when posting. The edit is invalid! Those who have different opinions on providing reference answers can post for discussion the next day. If multiple accounts with the same IP reply to participate, only the first one participating will be considered valid. Each participant is awarded 2 points. This issue is a single-choice question, with 2 points for each blank and 5 points for all correct answers. For specific hiding methods, see: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2%D 1. The state parameters of the gas are pressure, temperature and ( ) A. Volume B, weight C, entropy D, specific volume 2. ( ) measures must be taken when the boiler is out of service for a long time. A. Explosion-proof measures B. Fire-proof measures C. Anti-corrosion measures D. Anti-oxidation measures 3. Sewage pipes and drain pipes must be flexible enough to reduce the risk ( ) caused by the relative expansion of the small pipes and the boiler body parts. A. Shear stress B. Local stress C. Fatigue stress D. Thermal stress 4. The important significance of boiler water level adjustment is (). A. Prevent the water wall from interrupting water B. Ensure the safe and economical operation of the boiler C. Prevent steam from carrying water D. Ensure the load requirements of the unit 5. The explosion-proof inspection of the water wall should check whether there are any pipes protruding into the furnace. The reasons include () corrugated plates, hooks falling off, etc.; overheating of the pipes or insufficient cold drawing during installation; forced misalignment welding, etc.; identify the specific reasons and eliminate or restore them. A. Installation misalignment B. Pipe breakage C. Coke loss D. Flue gas erosion