【Daily Question】Utilities - Water Supply and Drainage - 20191217
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Fire separation water curtains should not be used for openings larger than ( ) meters in width and ( ) meters in height (except for stage entrances). A.6 ； 3 B.10 ； 4 C.15 ； 8 D.18 ； 9 Answer: C
Fire separation water curtains should not be used for openings larger than C meters in width and C meters in height (except for stage entrances). A.6 ； 3 B.10 ； 4 C.15 ； 8 D.18 ； 9