【Joint Study*】【Civil Engineering Version 20160121】
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Participation reward: 2 Wealth. Reward for correct answer: 9 wealth. The requirements for duct installation include: using cables to secure the outdoor vertical pipes; it is strictly prohibited to connect them to lightning rods or lightning protection meshes, ( ). A. Duct systems that transport flammable and explosive gases should have proper grounding measures. B. When duct systems carrying flammable and explosive gases pass through rooms in living areas, no connections should be installed there. C. When transporting air at a temperature higher than 70°C, rubber sheets can be used as sealing materials for the duct connections. D. Ducts that transport condensate water or steam should not have joints at their bottom. E. A drainage device should be installed at the lowest point of ducts that transport condensate water or steam
The requirements for duct installation include: using cables to secure the outdoor vertical pipes, and it is strictly prohibited to connect them to lightning rods or lightning protection nets (A B D E). A. Duct systems that transport flammable and explosive gases should have proper grounding measures. B. When duct systems carrying flammable and explosive gases pass through rooms in living areas, no connections should be installed there. C. When transporting air at a temperature higher than 70°C, rubber sheets can be used as sealing materials for the duct connections. D. Ducts that transport condensate water or steam should not have joints at their bottom. E. A drainage device should be installed at the lowest point of ducts that transport condensate water or steam
The requirements for duct installation include: using cables to secure the outdoor vertical pipes, and it is strictly prohibited to connect them to lightning rods or lightning protection grids (A., B., D., E.). A. Duct systems that transport flammable and explosive gases should have proper grounding measures. B. When duct systems carrying flammable and explosive gases pass through rooms in living areas, no connections should be installed there. C. When transporting air at a temperature higher than 70°C, rubber sheets can be used as sealing materials for the duct connections. D. Ducts that transport condensate water or steam should not have joints at their bottom. E. A drainage device should be installed at the lowest point of ducts that transport condensate water or steam
A, B, D, E,------------------------