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5.1 Describe how you will maintain the implement shown below - NSC Agricultural Technology - Question 5 - 2020 - Paper 1
Question 5
5.1 Describe how you will maintain the implement shown below. 5.2 The pictures below show two types of baling machines. 5.2.1 Redraw the table below in the ANSWER ... show full transcript
Worked Solution & Example Answer:5.1 Describe how you will maintain the implement shown below - NSC Agricultural Technology - Question 5 - 2020 - Paper 1
Step 1
Describe how you will maintain the implement shown below.
Answer
To maintain the implement effectively, I will perform the following actions:
- Lubricate all moving parts regularly to ensure smooth operation.
- Sharpen all blades to maintain efficiency.
- Inspect and clean the screens to prevent blockages and ensure proper functioning.
- Remove any foreign objects that may cause damage.
- Repair any damaged surfaces and replace broken parts immediately.
- Store the implement away from direct sunlight and rain to prevent deterioration.
- Conduct frequent checks for any vibrations, which could indicate mechanical issues.
- Clean the implement after use to prevent rust and other forms of corrosion.
- Inspect chains for wear and tear to ensure reliability.
Step 2
Redraw the table below in the ANSWER BOOK. Complete the table by comparing the two baling machines under the given headings.
Answer
| Baling Machine A | Baling Machine B |
|---|---|
| Transporting bales: Difficult to transport; smaller loads; takes more space. | Easy to transport; larger loads; optimized space. |
| Silage wrapping: Can wrap. | Cannot wrap. |
| Handling: Mechanical. | By hand. |
Step 3
Step 4
Discuss the function of the slip clutch fitted between the PTO shaft and the flywheel of BALING MACHINE B.
Answer
The function of the slip clutch in Baling Machine B is to prevent damage to the drive mechanisms in the event of an obstruction. It allows for some rotary movement to slip, thus protecting the machine from potential excessive stress that could arise if the PTO shaft is unable to rotate the flywheel due to a blockage.
Step 5
Describe THREE safety measures that should be followed when working with the silage cutter shown below.
Answer
When working with the silage cutter, it is crucial to follow these safety measures:
- Ensure that only the designated operator is on the machine to prevent accidents.
- Check that all safety screens are in working order and in place to protect against moving parts.
- Avoid allowing people or animals to come near the machine while in operation to prevent injuries.
Step 6
Discuss FIVE major problems that can occur during the harvesting of wheat when using the machine shown below.
Answer
While harvesting wheat, the following major problems may arise:
- Loss of grain due to blowers that are not set correctly.
- Thresher that breaks the grain during the harvesting process.
- Presence of too many foreign particles affecting the quality of the harvest.
- Mechanical problems arising from wear and tear or operational neglect.
- Challenges in harvesting when the wheat is wet, which can lead to clogging and inefficient processing.
Step 7
Briefly describe how the double-acting hydraulic cylinder works.
Answer
The double-acting hydraulic cylinder operates through a system of pressurized oil. When the control lever is in the neutral position, oil is pumped back to the oil container via the oil filter. Activating the control lever shifts the oil to one end of the cylinder, causing the piston to move in one direction, thus performing work. When the lever is moved to the opposite position, oil flows to the other side of the piston, enabling it to retract. This allows the cylinder to function effectively in both directions.
Step 8
Which side of the double-acting hydraulic cylinder is the strongest? Motivate your answer.
Answer
The rod side of the double-acting hydraulic cylinder is the strongest. This is because the area subjected to pressure is larger on that side, allowing it to handle greater load during operation compared to the other side.
Step 9
Step 10
What will happen if the top link between the tractor and the plough is removed?
Answer
If the top link between the tractor and the plough is removed, the following will occur: The nose of the tractor will lift up, which can affect balance. The back of the plough will remain on the ground, and the implement may not function as intended, leading to poor performance or further mechanical issues.
Step 11
Choose the tractor, A or B, which would be most suitable for mounting a front-end loader system. Motivate your answer.
Answer
Tractor A is more suitable for mounting a front-end loader system due to its all-wheel-drive capability, which enhances traction and stability when handling heavy loads. Additionally, it has a robust front suspension that can adequately support the weight and operational demands of the loader.
Step 12
Why are V-belts preferred over flat belts?
Answer
V-belts are preferred because they do not easily slip off pulleys. They provide better traction as they grip tighter around the pulleys, allowing for efficient energy transfer. Furthermore, V-belts require less lubrication, are generally more durable, and have a longer lifespan compared to flat belts.
Step 13
Why is the exhaust pipe of the tractor longer than the air-intake pipe?
Answer
The exhaust pipe of the tractor is longer to ensure that exhaust fumes/smoke do not enter the engine intake. This configuration helps maintain engine performance and efficiency by allowing the exhaust gases to dissipate away from the engine.