1.1 Choose a description from COLUMN B that matches an item in COLUMN A - NSC Civil Technology Civil Services - Question 1 - 2019 - Paper 1
Question 1
1.1 Choose a description from COLUMN B that matches an item in COLUMN A.
Write only the letter (A–K) next to the question numbers (1.1.1 to 1.1.8) in the ANSWER BOO... show full transcript
Worked Solution & Example Answer:1.1 Choose a description from COLUMN B that matches an item in COLUMN A - NSC Civil Technology Civil Services - Question 1 - 2019 - Paper 1
Step 1
1.1.1 PVA paint
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Answer
B: can be applied to walls.
Step 2
1.1.2 Guard rail
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G: transports workers, materials and equipment between ground and upper levels.
Step 3
1.1.3 Powder coating
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A: method of finishing metal exposed to heavy wear and tear conditions.
Step 4
1.1.4 Builder's hoist
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H: ensures that fresh concrete hardens properly.
Step 5
1.1.5 Ladder
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C: keeps grouts free from oil and grease.
Step 6
1.1.6 Diagonal brace
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F: prevents people from falling off the scaffolds.
Step 7
1.1.7 Galvanising
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J: zinc coating applied to the base of metal.
Step 8
1.1.8 Chute
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E: used as a means to dispose of waste material and debris from elevated areas.
Step 9
1.2 Explain TWO advantages of electroplating.
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Answer
Electroplating offers multiple benefits:
Protection Against Corrosion: It shields metals from rusting and oxidation, significantly extending their lifespan.
Improved Aesthetic Appeal: The process enhances the visual appeal by providing a shiny, smooth finish.
Step 10
1.3 Name the process when freshly cast concrete is kept moist for a specific period of time.
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Curing.
Step 11
1.4 Explain the purpose of keeping freshly cast concrete moist for a certain period of time after the concrete has been cast.
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Keeping freshly cast concrete moist helps in:
Preventing Cracking: Allows the concrete to set and harden gradually, reducing the chances of surface cracking.
Enhancing Strength: Ensures proper hydration of the cement, which contributes significantly to the overall strength of the concrete.
Step 12
1.5 Describe TWO safety precautions.
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Secure Loading: Ensure that the material is secured properly to prevent any movement during transport.
Maintain Distance: Workers should maintain a safe distance from the edge of platforms and follow protocols when near lifting equipment.
Step 13
1.6 Describe ONE safety factor that must be considered when using scaffold planks.
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Scaffold planks should be made of a solid wood at least 228 mm wide and 38 mm thick to ensure adequate support and minimize the risk of collapse.
Step 14
1.7.1 Identify the tool above.
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Dumpy level.
Step 15
1.7.2 Predict ONE consequence if the instrument is NOT set level.
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The readings would be inaccurate, leading to potential errors in measurements and alignment.
Step 16
1.8.1 Identify the joining fixture above.
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A dowel or a joining peg.
Step 17
1.8.2 Name the fixing agent that should be used with this joining fixture.
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Wood glue.
Step 18
1.8.3 Explain ONE use of this joining fixture.
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A joining fixture is used to align and secure two pieces of material together, ensuring a strong bond and stability in furniture or construction.
