Various options are provided as possible answers to the following questions - NSC Agricultural Technology - Question 1 - 2020 - Paper 1
Question 1
Various options are provided as possible answers to the following questions. Choose the answer and write only the letter (A–D) next to the question numbers (1.1.1 to... show full transcript
Worked Solution & Example Answer:Various options are provided as possible answers to the following questions - NSC Agricultural Technology - Question 1 - 2020 - Paper 1
Step 1
1.1.1 Aluminium is preferred for the manufacturing of fizzy drink cans because it …
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Answer
C: Aluminium is lightweight, making it ideal for manufacturing fizzy drink cans.
Step 2
1.1.2 All workshops must be equipped with fire extinguishers:
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Answer
A: According to the Occupational Health and Safety Act, 1993.
Step 3
1.1.3 Which ONE of the following is NOT an aim of standardising farm implements?
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Answer
C: Preventing one tractor company from forming a monopoly is not an aim of standardising.
Step 4
1.1.4 The … type of power take-off (PTO) enables the operator to stop the forward movement of the tractor without stopping the PTO drive.
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Answer
C: Live PTO allows for this operation.
Step 5
1.1.5 Which ONE of the following is NOT allowed when using a tractor on the farm?
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Answer
B: Allowing an extra passenger on the tractor is not permitted.
Step 6
1.1.6 The noise of a backup generator can be reduced by …
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B: Installing a muffler in the exhaust system is effective in reducing noise.
Step 7
1.1.7 The mechanism on a tractor that ensures that the plough works at a constant depth:
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Answer
C: The sensitivity element helps maintain consistent plough depth.
Step 8
1.1.8 A locked differential provides equal … to each of the two wheels on an axle.
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Answer
C: The locked differential supplies equal torque.
Step 9
1.1.9 A … is a positive mechanical connection between different rotating shafts which allows the shafts to work at different angles.
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Answer
C: A universal joint allows for different angular connections.
Step 10
1.1.10 Evenly distributes the outflow from the septic tank to the drainage field:
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Answer
A: The distribution box is used for even distribution.
Step 11
1.2.1 Nickel changes the band structure of stainless steel and causes a reduction in strength at the same time.
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Answer
Manganese.
Step 12
1.2.2 Bronze is an alloy consisting primarily of titanium, usually with tin as the main additive.
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Copper.
Step 13
1.2.3 Bolts are used to secure wires to electric fence posts to prevent energy loss by the posts and ground.
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Insulators/isolators/bobbin.
Step 14
1.2.4 Galvanised steel contains a magnesium coating that produces poisonous gases that can cause cancer when it is burnt.
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Zinc.
Step 15
1.2.5 The gas welding machine is used by robots in the automotive manufacturing industry to weld the bodies of vehicles.
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Answer
Spot/Arc/Mig/TIG welding.
Step 16
1.3.1 Separates the ground material from the air in a hammer mill
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Answer
D: Brake fluid.
Step 17
1.3.2 Separates the chaff and the maize kernels in the combine harvester
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F: Cyclone.
Step 18
1.3.3 Component that allows for the manual lubricating of moving parts on implements
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Answer
E: Grease nipple.
Step 19
1.3.4 A high-viscosity fluid that is used in the hydraulic system of a tractor
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Answer
G: Transmission oil.
Step 20
1.3.5 Protects the tractor operator from sustaining serious injuries in case of a tractor roll over
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