1.1 Various options are provided as possible answers to the following questions - NSC Agricultural Technology - Question 1 - 2020 - Paper 1
Question 1
1.1 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.... show full transcript
Worked Solution & Example Answer:1.1 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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C is lightweight. Aluminium is favored for its light weight, making it ideal for beverage cans.
Step 2
1.1.2 All workshops must be equipped with fire extinguishers:
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A Occupational Health and Safety Act, 1993 (Act 85 of 1993). This act ensures safety regulations within workshops.
Step 3
1.1.3 Which ONE of the following is NOT an aim of standardising farm implements?
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C Prevents one tractor company from forming a monopoly. Standardisation aims for interoperability, not monopolization.
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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C live. A live PTO allows the operator to disengage the tractor's forward movement while maintaining power to the attachment.
Step 5
1.1.5 Which ONE of the following is NOT allowed when using a tractor on the farm?
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B Allow an extra passenger on the tractor. Safety regulations prohibit additional passengers for safety reasons.
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. Mufflers effectively reduce engine 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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C Sensitivity element. This mechanism adjusts to 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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C torque. A locked differential ensures equal torque distribution to both wheels.
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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C universal joint. This component allows for the flexible connection of rotating shafts.
Step 10
1.1.10 Evenly distributes the outflow from the septic tank to the drainage field:
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A Distribution box. This component ensures balanced distribution of wastewater.
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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Manganese. Manganese enhances the band structure and strength of stainless steel.
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. Copper is a primary component of bronze, and titanium is not a common additive.
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. Insulators secure the wires and prevent energy loss.
Step 14
1.2.4 Galvanised steel contains a magnesium coating that produces pollution gases that can cause cancer when it is burned.
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Zinc. Zinc is the coating applied to galvanised steel.
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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Spot/Arc/Mig/TIG welding. These welding types are commonly used in automotive applications.
Step 16
1.3.1 Separates the ground material from the air in a hammer mill
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D cyclone. A cyclone is used for separating materials from air in various applications.
Step 17
1.3.2 Separates the chaff and the maize kernels in the combine harvester
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G screens. Screens separate the chaff from the maize kernels.
Step 18
1.3.3 Component that allows for the manual lubricating of moving parts on implements
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F grease nipple. Grease nipples facilitate manual lubrication.
Step 19
1.3.4 A high-viscosity fluid that is used in the hydraulic system of a tractor
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E transmission oil. Transmission oil is designed for hydraulic applications.
Step 20
1.3.5 Protects the tractor operator from sustaining serious injuries in case of a tractor roll over
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B canopy. A canopy provides protection for the operator during rollovers.
