Question 236Safety & Environmental - Assistant Engineer

The correct answer is A) Combination. The air flow depicted in figure 1 of the illustration SF-0013 is an example of combination ventilation. Combination ventilation refers to a system that uses both vertical and horizontal air flow to effectively circulate and distribute air throughout a space. This type of ventilation combines the advantages of both vertical and horizontal air movement to provide efficient and well-distributed ventilation. The other options are incorrect because vertical ventilation involves only vertical air flow, horizontal ventilation involves only horizontal air flow, and parallel ventilation refers to a specific type of duct arrangement, which is not depicted in the illustration.