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Participation reward: 2 Wealth. Reward for correct answer: 9 wealth. For the installation of drainage vent pipes, when there are doors or windows within () meters of the vent outlet, the vent pipe should be placed 600 mm above the top of those doors and windows, or it should be directed towards a side where there are no doors or windows. A.3 B,4 C.5 D.1 【Production and Management Division】Seeking moderators and technical discussants to join
For the installation of drainage vents, when there are doors or windows within 4 meters of the vent outlet, the vent should be placed 600 mm above the top of those doors and windows, or it should be directed toward a side where there are no doors or windows.
For the installation of drainage vent pipes, when there are doors or windows within b meters of the vent outlet, the vent pipe should be installed 600 mm above the top of those doors or windows, or it should be directed towards a side where there are no doors or windows. A.3 B,4 C.5 D.1
For the installation of drainage vent pipes, when there are doors or windows within B meters of the vent outlet, the vent pipe should be installed 600 mm above the top of those doors or windows, or it should be directed towards a side where there are no doors or windows. A.3 B,4 C.5 D.1
For the installation of drainage vent pipes, when there are doors or windows within B meters of the vent outlet, the vent pipe should be installed 600 mm above the top of those doors or windows, or it should be directed towards a side where there are no doors or windows.
B, 4 meters. -------------------------------
My answer: B. . . . . . . . . . .
For the installation of drainage vents, when there are doors or windows within 4 meters of the vent outlet (B), the vent should be placed 600 mm above the top of those doors or windows, or it should be directed towards a side where there are no doors or windows.
For the installation of drainage vent pipes, when there are doors or windows within B meters of the vent outlet, the vent pipe should be installed 600 mm above the top of those doors or windows, or it should be directed towards a side where there are no doors or windows.
For the installation of drainage vent pipes, when there are doors or windows within B meters of the vent outlet, the vent pipe should be installed 600 mm above the top of those doors or windows, or it should be directed towards a side where there are no doors or windows. A.3 B,4 C.5 D.1