Concrete, Brickwork & Formwork is one of 9 topics in the Grade 10 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. What does the slump test measure?
The workability (wetness/consistency) of a fresh concrete mix
The final compressive strength of hardened concrete
The colour of a concrete mix
The weight of a bag of cement
Answer: The workability (wetness/consistency) of a fresh concrete mix — The slump test measures the workability (wetness/consistency) of a fresh concrete mix before it is placed.
Easy
2. Which type of concrete mix would be most appropriate for a structurally demanding element such as a load-bearing column?
A high-strength mix with proportionally more cement
A low-strength mix with a high proportion of aggregate to cement
A mix with no cement at all
A mix using only sand and water
Answer: A high-strength mix with proportionally more cement — A high-strength mix, with proportionally more cement, is required for structurally demanding elements such as load-bearing columns or beams.
Medium
3. Name the general term for a chemical substance added to a concrete mix to change its properties, such as setting time or workability.
Answer: admixture — An admixture is a chemical substance added to a concrete mix to change its properties, such as setting time, workability, or water resistance.
