8 questions · pass mark 70%. Answer all, then see your score and a quick why for each.
01In an insulating glass unit (IGU), which element is the real moisture and gas barrier?
02Why does a double-glazed unit fog up permanently from the inside?
03On a structural silicone glazing (SSG) joint, what does the 'bite' do?
04A 1.5 m x 3.0 m SSG pane sees a corner design wind pressure of 2.0 kPa; the sealant's allowable stress is 0.14 N/mm2. Using B = (p x a)/(2 x sigma_allow) with a = 1.5 m, the structural bite is closest to:
05What causes the spontaneous breakage of toughened glass with no external impact?
06What is the heat-soak test (EN 14179), and what does it achieve?
07Thermal stress cracking in a facade pane is most likely when:
08An ECBC office needs SHGC <= 0.27 and VLT >= 0.45. Three options: A bronze tint (VLT 0.50, SHGC 0.55), B single-silver (VLT 0.55, SHGC 0.34), C double-silver (VLT 0.50, SHGC 0.27). Which is the right choice and why?
