1.What is the standard clamp spacing in inches used to secure residential water lines?
1.固定住宅给水管线时，标准管卡间距是多少英寸？
2.What is the minimum thickness in inches required for rough, random, or coursed rubble stone walls?
2.粗糙、不规则或分层毛石墙（Rubble Stone Wall）要求的最小厚度是多少英寸？
3.When hot and cold water pipes are installed side by side along the same run, what is the standard vertical layout?
3.当冷热水管并排安装在同一路径上时，标准垂直布置方式是什么？
4.What is the nominal thickness range in inches for hollow masonry foundation walls?
4.空心砌体基础墙（Hollow Masonry Foundation Wall）的标准厚度范围是多少英寸？
5.When grouting the cells of hollow block masonry, what method(s) should be used to consolidate the grout?
5.对空心砌块砌体的孔洞进行灌浆时，应采用哪些方法使灌浆密实？
6.Which type of concrete offers better resistance to freeze‑thaw cycles?
6.哪种混凝土具有更好的抗冻融循环能力？
7.What are the standard dimensions for a conventional brick?
7.标准普通砖（Conventional Brick）的尺寸是多少？
8.If a waste drainage line exceeds 6 feet in length, which material is recommended for installation?
8.如果废水排水管线长度超过6英尺，推荐使用哪种材料安装？
9.What is the proper method for installing plywood floor sheathing?
9.胶合板楼面覆板（Plywood Floor Sheathing）的正确安装方法是什么？
10.How much clearance is required when installing appliances on a properly drained roof surface?
10.在排水良好的屋面表面安装设备时，需要保持多少间距？
