Finish TradesCâu 257 / 700
How can an installer verify that an installed pane is tempered (safety) glass?
a.Tempered glass is always tinted blue
b.Look for a permanent etched/sandblasted manufacturer's mark in a corner
c.Tempered glass is thinner than annealed glass
d.Tap it; tempered glass sounds hollow
Giải thích
Tempered glass carries a permanent identifying mark (etched or ceramic-fired) in a corner naming the maker and standard, which is the reliable field check. Tint color, thickness, and sound are not dependable indicators of tempering.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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