【Question 151】Boiler basic questions (January 19)

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Please hide your replies; be cautious when posting, as edits are invalid! Those with different views on the provided answer keys can post discussions the next day. For multiple accounts under the same IP, only the participation of the first account is considered valid. All participants receive 2 points as a reward. This round consists of multiple-choice questions, with 2 points for each question; 5 points are awarded for getting all questions correct. In principle, scores are given to the top 50 respondents who answer within 48 hours. Please hide your replies; the method for doing this is: http://bbs.hcbbs.com/thread-492556-1-1.html. 1. When intensifying the soot blowing of the water wall, the temperature of the superheated steam will ( ). A. Decrease B. Increase C. Remain unchanged D. Uncertain 2. What does the excess air coefficient of a boiler mean? A. The ratio of excess air volume to actual air volume B. The ratio of excess air volume to the theoretical air volume required for combustion C. The ratio of actual air volume to the theoretical air volume required for combustion D. The ratio of the theoretical air volume required for combustion to the actual air volume Answer: A, C