Materials: Glass, Bricks & Blocks is one of 9 topics in the Grade 11 Civil Technology CAPS syllabus, covered across 3 lessons on Study Vault. Below are real practice questions from this topic with full worked answers.
Sample practice questions
Easy
1. Which glass type is used where privacy is needed but daylight should still enter, such as a bathroom window?
Translucent glass
Clear sheet glass
Safety glass only
None of these glass types allow light through
Answer: Translucent glass — Translucent glass, such as frosted or obscured glass, allows light through while obscuring a clear view, suiting applications like bathroom windows.
Easy
2. Which family of synthetic materials softens when heated and can be reshaped repeatedly?
Thermoplastics
Thermosetting plastics
Neither type of plastic can ever be heated
Only PVC can be reshaped
Answer: Thermoplastics — Thermoplastics soften when heated and can be reshaped repeatedly, unlike thermosetting plastics, which undergo a permanent chemical change when first cured.
Medium
3. Name the flexible, moisture-resistant thermoplastic (also called polyethylene) commonly used for damp-proof membranes and sheeting.
Answer: polythene — Polythene (polyethylene) is a flexible, moisture-resistant thermoplastic commonly used for damp-proof membranes, sheeting and piping.
