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This post was last edited by hjztbwg on 2015-12-22 09:10. Reward for participation: 2 Wealth. Reward for correct answer: 9 wealth. In a certain city, a section of an highway tunnel is 480 meters long; it is open to various motor vehicles and meets the requirements of the design fire protection regulations. What should be the appropriate economic ventilation method for this tunnel? The correct answers are AD: (A) Natural ventilation, (B) Semi-transverse ventilation, (C) Transverse ventilation, (D) Longitudinal ventilation
(A) Natural ventilation (D) Vertical ventilation
D、-----------------------------
In a certain city, a section of an highway tunnel is 480 meters long; it is open to various motor vehicles and meets the requirements of the design fire protection regulations. What should be the appropriate economic ventilation method for this tunnel? (D) Vertical ventilation
In a certain city, a section of an highway tunnel is 480 meters long; it is open to various motor vehicles and meets the requirements of the design fire protection regulations. What should be the appropriate economic ventilation method for this tunnel? (A) Natural ventilation (B) Semi-transverse ventilation (C) Transverse ventilation (D) Longitudinal ventilation Answer: (D) Longitudinal ventilation
In a certain city, a section of an highway tunnel is 480 meters long; it is open to various motor vehicles and meets the requirements of the design fire protection regulations. What should be the appropriate economic ventilation method for this tunnel? D (A) Natural ventilation (B) Semi-transverse ventilation (C) Transverse ventilation (D) Longitudinal ventilation
In a certain city, a section of an highway tunnel is 480 meters long; it is open to various motor vehicles and meets the requirements of the design fire protection regulations. What should be the appropriate economic ventilation method for this tunnel? D
In a certain city, a section of an highway tunnel is 480 meters long; it is open to various motor vehicles and meets the requirements of the design fire protection regulations. What should be the appropriate economic ventilation method for this tunnel? AD (A) Natural ventilation (B) Semi-transverse ventilation (C) Transverse ventilation (D) Longitudinal ventilation