Difficulty: Easy
Correct Answer: All of the above
Explanation:
Introduction / Context:
Acrylic (polymethyl methacrylate, PMMA) is widely used for glazing, skylights, signage, and protective screens. It combines excellent clarity with high impact resistance relative to ordinary glass, and it can be thermoformed into diverse shapes.
Given Data / Assumptions:
Concept / Approach:
Clear acrylic exhibits high visible light transmission (around 92–93%) and better impact resistance than ordinary glass (often quoted in the 10–17× range). It resists mild chemicals like household detergents but is sensitive to strong solvents and abrasives. Acrylic can be cast or extruded in sheets, then fabricated by machining or thermoforming into different shapes.
Step-by-Step Solution:
Verification / Alternative check:
Manufacturer datasheets for PMMA list high light transmission, significant impact improvement over glass, and common cleaning guidance with mild detergents.
Why Other Options Are Wrong:
Each single property is correct but incomplete; only the aggregate answer captures the full attribute set.
Common Pitfalls:
Cleaning with solvents or abrasive pads that craze/scratch acrylic; confusing acrylic with polycarbonate (which has even higher impact strength).
Final Answer:
All of the above
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