Finish TradesCâu 418 / 700
In three-coat interior plaster over metal lath, what is the correct order of the coats from the lath outward?
a.Scratch coat, brown coat, finish coat
b.Finish coat, brown coat, scratch coat
c.Brown coat, scratch coat, finish coat
d.Finish coat, scratch coat, brown coat
Giải thích
Three-coat plaster is applied as the scratch coat (keyed into the lath and scored), then the leveling brown coat, then the thin finish coat. The other sequences reverse or scramble the layers, which would defeat the mechanical key and the leveling and finishing functions of each coat.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- The finished sill height of an emergency escape and rescue opening must be no more than what height above the floor?
- Under the California Energy Code, a lower fenestration U-factor for windows indicates what about the window's performance?
- When hanging gypsum board on a ceiling with framing spaced 16 inches on center, which practice BEST minimizes sagging over time?
- When specifying architectural cabinetry, what does specifying a particular grade under the North American Architectural Woodwork Standards primarily control?
- When installing natural stone tile such as green marble, why is the choice of setting mortar and installation method especially important compared with ordinary ceramic tile?
- When applying an oil-based stain and clear topcoat to interior wood trim, why should oily rags be spread out or placed in a sealed metal container after use?
Cập nhật gần nhất: · quy trình kiểm tra
Đội Ngũ Biên Tập PrepPass · Đối chiếu với California CSLB General Building (B) Trade Examination · Quy trình kiểm tra