【Daily Question】Question from Issue 20151009
Thread Content
This post was last edited by hjztbwg on 2015-10-16 09:31. Reward for participation: 2 wealth points. Reward for correct answer: 9 Wealth. Regarding the concepts of overpressure ventilation systems in civil air defense projects, which of the following are correct? The answers are ABD. (A) The purpose of the overpressure exhaust system is to ensure ventilation in the decontamination rooms and gas protection passages. (B) When using overpressure exhaust, the exhaust fans must be turned off, and ventilation is achieved through the overpressure inside the room pushing air outward. (C) The overpressure exhaust volume equals the volume of air exhausted for filtration and decontamination plus the volume of air exhausted from the gas protection passages. (D) The higher the number of air changes per unit time in the gas protection passages, the greater the amount of air that needs to be exhausted for filtration
Regarding the concept of the overpressure exhaust system in civil air defense projects, which of the following are correct? A B D
Option C,~~~~~~~~~~~~~~~~~~~
Regarding the concept of the overpressure exhaust system in civil air defense projects, which of the following are correct? In the US, (A) the purpose of the positive pressure exhaust system is to ensure ventilation in decontamination rooms and gas protection passages. (B) When using positive pressure exhaust, the exhaust fans must be turned off, and air is expelled outside through the positive pressure inside the room. (C) The volume of air exhausted under positive pressure equals the volume of air exhausted for filtration and decontamination plus the volume of air exhausted from the gas protection passages. (D) The greater the number of air changes per unit time in the gas protection passages, the greater the volume of air that needs to be exhausted for filtration
Regarding the concept of the overpressure exhaust system in civil air defense projects, which of the following are correct? (A, B, D) (A) The purpose of the overpressure exhaust system is to ensure ventilation in the decontamination rooms and gas protection passages. (B) When using overpressure exhaust, the exhaust fan must be turned off, and ventilation is achieved by using the overpressure inside the room to push air outside. (C) The overpressure exhaust volume equals the volume of air exhausted for filtration and decontamination plus the volume of air exhausted from the gas protection passages. (D) The higher the number of air changes per unit time in the gas protection passages, the greater the volume of air that needs to be exhausted for filtration
Regarding the concept of the overpressure exhaust system in civil air defense projects, which of the following are correct? In the U.S. system (A), the purpose of the positive pressure exhaust system is to ensure ventilation in the decontamination rooms and gas protection passages. (B) When using positive pressure exhaust, the exhaust fans must be turned off, and air is expelled outside through the positive pressure inside the room. (C) The volume of air exhausted under positive pressure equals the volume of air exhausted for filtration and decontamination plus the volume of air exhausted from the gas protection passages. (D) The higher the number of air changes per unit time in the gas protection passages, the greater the volume of air that needs to be exhausted for filtration. Answer: ABD
A C: Regarding the concepts of overpressure exhaust systems in civil air defense projects, which of the following are correct? (A) The purpose of the positive pressure exhaust system is to ensure ventilation in the decontamination rooms and gas protection passages. (B) When using positive pressure exhaust, the exhaust fans must be turned off, and ventilation is achieved by using the positive pressure inside the room to push air outside. (C) The volume of air exhausted under positive pressure equals the volume of air exhausted for filtration and ventilation plus the volume of air exhausted from the gas protection passages. (D) The greater the number of air changes per unit time in the gas protection passages, the greater the volume of air that needs to be exhausted for filtration
A, B, D,----------------------------
Regarding the concept of the overpressure exhaust system in civil air defense projects, which of the following are correct? (A B D) (A) The purpose of the positive pressure exhaust system is to ensure ventilation in the decontamination rooms and gas protection passages. (B) When using positive pressure exhaust, the exhaust fans must be turned off, and air is expelled outdoors due to the positive pressure inside the room. (C) The volume of air exhausted under positive pressure equals the volume of air exhausted for filtration and decontamination plus the volume of air exhausted from the gas protection passages. (D) The higher the number of air changes per unit time in the gas protection passages, the greater the volume of air that needs to be exhausted for filtration
Regarding the concept of the overpressure exhaust system in civil air defense projects, which of the following are correct? (ABD) (A) The purpose of the positive pressure exhaust system is to ensure ventilation in the decontamination rooms and gas protection passages. (B) When using positive pressure exhaust, the exhaust fans must be turned off, and ventilation is achieved by using the positive pressure inside the room to push air outside. (C) The volume of air exhausted under positive pressure equals the volume of air exhausted for filtration and decontamination plus the volume of air exhausted from the gas protection passages. (D) The higher the number of air changes per unit time in the gas protection passages, the greater the volume of air that needs to be exhausted for filtration