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5.1 Name the type of lagging that you would use for the centres when you have to build the following: 5.1.1 Rough arch 5.1.2 Gauged arch 5.2 Draw in your ANSWER BOOK, in good proportion, a centre for a semicircular arch that will be built over a door opening - NSC Civil Technology Woodworking - Question 5 - 2019 - Paper 1
Question 5
5.1 Name the type of lagging that you would use for the centres when you have to build the following: 5.1.1 Rough arch 5.1.2 Gauged arch 5.2 Draw in your ANSWER B... show full transcript
Worked Solution & Example Answer:5.1 Name the type of lagging that you would use for the centres when you have to build the following: 5.1.1 Rough arch 5.1.2 Gauged arch 5.2 Draw in your ANSWER BOOK, in good proportion, a centre for a semicircular arch that will be built over a door opening - NSC Civil Technology Woodworking - Question 5 - 2019 - Paper 1
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5.2 Draw in your ANSWER BOOK, in good proportion, a centre for a semicircular arch that will be built over a door opening. Label any TWO parts on the drawing.
Answer
To draw a centre for a semicircular arch, depict a semicircle above a rectangle representing the door. Label the 'RIB' of the arch and the 'TIE BEAM' connecting the ends.
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5.3 Name the material that can be used for the sides of the formwork for a square column, which saves time because no surface finishing is needed and no absorption of moisture from the concrete takes place.
Answer
The material suitable for the sides of the formwork is steel. It provides a smooth finish and prevents moisture absorption, reducing the need for additional surface treatment.
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5.4 What will you apply to the formwork before the casting of concrete to prevent the concrete from clinging to the inside of the formwork when striking takes place?
Answer
Before casting, releasing oil will be applied to the formwork. This creates a lubricated surface, ensuring easy removal of the formwork after the concrete has set.
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5.5 Use ANSWER SHEET 5.5 and draw, in good proportion, ONLY the left half of the vertical section of the formwork for the concrete beam.
Answer
On ANSWER SHEET 5.5, represent the vertical section of the formwork. Include elements such as the 'SHUTTERING BOARD SIDE', 'CLEAT', and 'WEDGE', ensuring correct proportions and clear labeling.
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