1.1.1 Aluminium is preferred for the manufacturing of fizzy drink cans because it …
A allows air to pass through - NSC Agricultural Technology - Question 1 - 2020 - Paper 1
Question 1
1.1.1 Aluminium is preferred for the manufacturing of fizzy drink cans because it …
A allows air to pass through.
B is resistant to acids.
C is lightweight.
D is an... show full transcript
Worked Solution & Example Answer:1.1.1 Aluminium is preferred for the manufacturing of fizzy drink cans because it …
A allows air to pass through - 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
Aluminium is preferred for manufacturing fizzy drink cans primarily because it is lightweight. This property allows for efficient transportation and lower production costs.
Step 2
1.1.2 All workshops must be equipped with fire extinguishers:
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All workshops should adhere to occupational safety standards outlined by the Occupational Health and Safety Act, ensuring that fire extinguishers are readily available to prevent accidents.
Step 3
1.1.3 Which ONE of the following is NOT an aim of standardising farm implements?
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Standardising farm implements aims to make maintenance and repairs easier and to ensure interchangeability. However, preventing one tractor company from managing a monopoly is not an aim of standardisation.
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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The type of PTO that allows for the forward movement to continue while disconnecting power is called a 'live' PTO. This feature provides operational flexibility.
Step 5
1.1.5 Which ONE of the following is NOT allowed when using a tractor on the farm?
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It is not permitted to allow an extra passenger on the tractor as this can pose safety hazards to both the passenger and the operator.
Step 6
1.1.6 The noise of a backup generator can be reduced by …
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The noise from a backup generator can be effectively reduced by installing a muffler in the exhaust system, which dampens sound production.
Step 7
1.1.7 The mechanism on a tractor that ensures that the plough works at a constant depth:
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The stabilising chains are crucial for maintaining the plough's depth during operation, ensuring uniformity in the work being performed.
Step 8
1.1.8 A locked differential provides equal … to each of the two wheels on an axle.
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A locked differential ensures equal torque is delivered to each wheel, enhancing traction and control, especially in uneven terrain.
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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A universal joint serves as a flexible mechanical connection that allows for the angular movement between different rotating shafts, crucial in machinery.
Step 10
1.1.10 Evenly distributes the outflow from the septic tank to the drainage field:
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The distribution box plays a critical role in managing and evenly distributing fluid from the septic tank to the drainage field, preventing localized saturation.
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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The term 'Manganese' should replace 'Nickel' to enhance strength without compromising band structure, an essential characteristic in alloys.
Step 12
1.2.2 Bronze is an alloy consisting primarily of titanium, usually with tin as the main additive.
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The correct term to use here is 'Copper', indicating that bronze consists primarily of copper, not titanium.
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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The word 'Insulators' should replace 'Bolts', as they serve to prevent energy loss rather than secure it.
Step 14
1.2.4 Galvanised steel contains a magnesium coating that produces poisonous gases that can cause cancer when it is burned.
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The correct term is 'Zinc', which is the primary coating that prevents rust and does not produce harmful gases when burned.
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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The phrase should be replaced with 'Spot/Arc/Mig/TIG welding', which are types of welding processes used in automotive construction.
Step 16
1.3.1 Separates the ground material from the air in a hammer mill
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The correct term to describe this component is 'cyclone' as it helps separate materials based on density.
Step 17
1.3.2 Separates the chaff and the maize kernels in the combine harvester
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In this context, 'screen' is the proper word, as it is used to filter out the kernels from the chaff.
Step 18
1.3.3 Component that allows for the manual lubricating of moving parts on implements
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This is often referred to as a 'grease nipple', which allows for the easy application of grease to machinery.
Step 19
1.3.4 A high-viscosity fluid that is used in the hydraulic system of a tractor
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Here, the term 'hydraulic fluid' is used to describe oils designed specifically for hydraulic systems.
Step 20
1.3.5 Protects the tractor operator from sustaining serious injuries in case of a tractor roll over
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The correct term is 'rollover protective structure (ROPS)', designed to safeguard operators during accidents.
