Concrete Structures Supplementary NCV Level 4 — Memo

February 2020 — NCV Level 4 — Concrete Structures Supplementary

NCV Level 4 2020 NCV Engineering

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Q1— Section header —

1.10True True False False True True True alse True

Q2— Section header —

2.1.1Crown Usually th ese ties are used to tie together bars that might spring apart such as those found in heavy base mats.

2.1.2Hairpin: Hairpin ties secure the cage completely before the con crete is placed in the formwork.

2.1.3Ring hairpin These ties prevent slipping and are good for walls.

2.1.4Splice: hey are used to tie together the area between main ties, such as a slab the bottom or top slabs and bases.

2.1.6

2.2It is a wire used to t ie reinforcement bars together. (2\

2.3Always pull the wire binding tight so that the reinforcement stays in position. It must be able to resist movement when loads are placed on it. reate a firm tight tie if the bending wire is malleable enough to easily

2.4Tying wir e nip

2.535

Q3— Section header —

3.1The bar mark The bar type and size The bar spacing The bar location [10]10

Q4— Section header —

4.1Concrete temperature may increase due to friction. Some entr ained air may be lost from air entrained concrete. If the aggregate is soft, grinding

4.2Do not overload the mixer. Replace worn blades. Regula rly adjust the blades of the pan mixer to operate in the right position. Run the mixer at the correct speed. Discharge the complete batch before starting the next batch.

4.3.5

4.4Plastic settlement cracking is the result of bleeding that negatively ffect the strength and durability of concrete structures (2\

4.5Remov laitance Vacuum dewatering [25]25

Q5— Section header —

Q6— Section header —

6.1Mark allocation Correctness = 3 Label = 3 (6\

6.2Prevent c onstruction workers from bumping or storing heavy objects on timber Store timber where rain cann ot damage Store w

Mark Allocation

Sections10 + 35 + 10 + 25 + 10 + 10 = 100 marks

Paper information

TitleMemo

SubjectConcrete Structures Supplementary

LevelNCV Level 4

Document typeNCV Engineering

Year2020

MonthFebruary

Pages5

Downloads4

Examination context

Decade2020s

Years ago6y

SeasonSummer (SH)

Start daySaturday

Exam periodFebruary 2020

Days since exam2,443

About Concrete Structures Supplementary examination preparation

This TVET examination resource can be used as part of a structured revision programme. Past papers are most useful when learners attempt questions independently, work within a realistic time limit, and review their answers afterwards.

How to use this resource for revision

A TVET past examination paper is most useful when it is treated as an active revision exercise. Try the questions yourself before checking the corresponding memorandum. Where you make an error, identify the reason — was it a knowledge gap, a calculation mistake, an interpretation issue, or an examination technique problem?

For stronger examination practice, complete the paper without unnecessary interruptions and keep track of the questions that take the most time. Afterwards, review the memorandum and separate knowledge gaps from mistakes caused by interpretation, calculation, structure, or examination technique.

understanding question requirements

applying subject knowledge

working under time constraints

checking answers

identifying revision priorities

A practical revision approach

Start by completing the resource without looking at the memorandum. Review incorrect and incomplete answers afterwards and make a short revision list based on the areas that caused difficulty.

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File size293.4 KB

Pages5

Archived on8 September 2026

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