【Daily Question】Question from Issue 20151018
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Participation reward: 2 Wealth. Reward for correct answer: 9 wealth. Regarding the requirements for the installation of building drains, which of the following is correct? A. Organized drainage should be employed, with the width of the apron being around 1500 mm. B. The slope of the apron can range from 3% to 5%. C. When a concrete apron is used, it is not necessary to provide expansion joints. D. The gap between the apron and the exterior wall can be 3 to 5 mm, and this gap should be filled with an asphalt-based substance. Answer: B
Regarding the requirements for the installation of building aprons, the following (B) is correct. A. Organized drainage should be employed, with the width of the apron being around 1500 mm. B. The slope of the apron can range from 3% to 5%. C. When a concrete apron is used, expansion joints are not necessary. D. The gap between the apron and the exterior wall can be 3 to 5 mm, and this gap should be filled with an asphalt-based substance
B. The slope of the drainage surface can be 3% to 5%
I think answer B should be the correct one
Regarding the requirements for the design of building aprons, the following statement (B. The slope of the apron can be 3%–5%) is correct.
B. The slope of the drainage surface can be 3% to 5%
B、---------------------------------------------------------
Regarding the requirements for the installation of building aprons, the following (B) is correct. A. Organized drainage should be employed, with the width of the apron being around 1500 mm. B. The slope of the apron can range from 3% to 5%. C. When a concrete apron is used, expansion joints are not necessary. D. The gap between the apron and the exterior wall can be 3 to 5 mm, and this gap should be filled with an asphalt-based substance
B. The slope of the drainage surface can be 3% to 5%
Regarding the requirements for the installation of building aprons, the following (B) is correct. A. Organized drainage should be employed, with the width of the apron being around 1500 mm. B. The slope of the apron can range from 3% to 5%. C. When a concrete apron is used, expansion joints are not necessary. D. The gap between the apron and the exterior wall can be 3 to 5 mm, and this gap should be filled with an asphalt-based substance
Regarding the requirements for the installation of building aprons, the following (B) is correct. A. Organized drainage should be employed, with the width of the apron being around 1500 mm. B. The slope of the apron can range from 3% to 5%. C. When a concrete apron is used, expansion joints are not necessary. D. The gap between the apron and the exterior wall can be 3 to 5 mm, and this gap should be filled with an asphalt-based substance