Process Design: 【One Question per Day】December 24, 2010 (Friday)

2010-12-24View Original

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This post was last edited by jintchinssen on 2010-12-24 at 16:57. Multiple-choice question: In cold regions, when using buried safety spray and eye wash devices, the positions of their water inlets and outlets must be _____ mm below the permafrost layer. A. 100 B. 200 C. 300 D. 400 Note: 1) All participants will receive a reward ； 2) Please hide your replies; the method for doing this is: http://bbs.hcbbs.com/thread-492556-1-1.html. Do not edit the replies after posting them. (3) The answer is as follows. Answer: B. Refer to HG/T 20570.14 for the installation of personal protection emergency systems.

Reply #22010-12-24

C^^^^^^^^^^^^^

Reply #32010-12-24

My answer is C; I think so

Reply #42010-12-24

Choose B； HGT 20570.14 3.0.2.5

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Process Design: 【One Question per Day】December 24, 2010 (Friday)

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