The pictures below show TWO types of lawnmowers - NSC Agricultural Technology - Question 5 - 2024 - Paper 1
Question 5
The pictures below show TWO types of lawnmowers. Answer the questions that follow.
5.1.1 Identify the power sources of mower A and mower B.
5.1.2 State TWO mainten... show full transcript
Worked Solution & Example Answer:The pictures below show TWO types of lawnmowers - NSC Agricultural Technology - Question 5 - 2024 - Paper 1
Step 1
5.1.1 Identify the power sources of mower A and mower B.
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Answer
Mower A is powered by electricity (Electric), while mower B is powered by petrol (Petrol).
Step 2
5.1.2 State TWO maintenance tasks to be performed on mower B.
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Answer
Check oil levels and ensure fuel is sufficient.
Inspect and replace worn or damaged parts regularly.
Step 3
5.1.3 State TWO safety tips when working with lawn mowers.
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Always read the operator's manual and understand the machine's functions.
Clear the mowing area of debris before starting to avoid injury.
Step 4
5.2.1 Identify the safety hazards depicted in EACH picture below.
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A. No safety screen in place.
B. Damaged safety screen.
C. Worker climbing over PTO-driving shaft/Bystanders that can be injured.
D. Hands near moving parts/No safety screens.
Step 5
5.2.2 When setting up a hammer mill, it needs to be on a level surface. Do you agree with this statement? Motivate the answer.
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Yes, I agree. A level surface ensures the mass of moving parts is evenly distributed over the bearings, reducing wear and minimizing vibration.
Step 6
5.2.3 A PTO drive shaft can reach a rotational speed of up to 2 800 r/min. Determine how many revolutions will occur per second.
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To convert revolutions per minute to revolutions per second:
2800 r/min÷60=46.66 r/sec
Step 7
5.3 Match EACH device in the table below with a use.
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5.3.1 D
5.3.2 B
5.3.3 C
5.3.4 A
5.3.5 E
Step 8
5.4.1 Write, in tabular form, TWO advantages and TWO disadvantages of EACH type of baler.
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Answer
Bale Type
Advantages
Disadvantages
Round bales
1. Roofed storage not necessary.
One-man operation. | 1. Not easily transported.
Must be handled mechanically. |
| Rectangular bales | 1. Bales stored easily.
Easier to pack on trailer. | 1. Must be stored under roof.
Higher labour needs.
Step 9
5.4.2 Name TWO methods that can be used to load large bales onto a trailer.
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Front end loader/Fork loader.
Mechanical devices/Conveyor belt.
Step 10
5.4.3 State TWO safety measures when bales are transported.
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Only one person should be on the tractor.
No one is allowed to sit on bales during transport.
Step 11
5.5.1 Name the part that enables the lifting arms to start moving.
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Control lever.
Step 12
5.5.2 Name part A.
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Automatic depth control mechanism/sensitivity element spring.
Step 13
5.5.3 Explain what will happen to the plough if the top link, labelled B, is not connected and the tractor starts moving forward.
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If the top link is not connected, the plough may lift out of the soil, causing it to not function properly and potentially damaging the equipment.
Step 14
5.6 Identify the types of hydraulic cylinders shown in the pictures.
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5.6.1 Single action hydraulic cylinder.
5.6.2 Double action hydraulic cylinder.
5.6.3 Single action hydraulic cylinder.
