Question 41, True/False on boiler foundations on September 24: (A certain score will be given to the top 40)
Thread Content
The secondary air used for boiler combustion must be air. () Answer: Wrong. Thank you for your support. Correct answer: Wealth +8 points; wrong answer or 50 stickers: Wealth +3 points.
The secondary air used for boiler combustion must be air. (X)
The secondary air used for boiler combustion must be air. (×)
The secondary air used for boiler combustion must be air. (Mistake)
Correct----------------------------------------
The secondary air used for boiler combustion must be air. (Mistake)
The secondary air used for boiler combustion must be air. (×)
If secondary air isn’t air, then what is it?
The secondary air used for boiler combustion must be air. (Mistake)
The secondary air used for boiler combustion must be air. (X)
Wrong,×~~~~~~~~~~~~~~~~~