Photo AI
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 would implement the following actions:
- Lubricate Regularly: Ensure all moving parts are lubricated to prevent wear and tear.
- Sharpen all Blades: Maintain cutting efficiency by regularly sharpening blades.
- Inspect Screens: Verify that all screens are intact and functional to ensure proper operation.
- Remove Foreign Objects: Regularly check and remove any foreign objects that could hinder performance.
- Repair Damaged Parts: Promptly repair or replace damaged or broken parts to maintain operational integrity.
- Protect from Environmental Damage: Store the implement away from direct sunlight and rain to prolong its lifespan.
- Check for Vibration: Monitor the implement for unusual vibrations which can indicate mechanical issues.
- Clean the Implement: Regular cleaning helps to avoid rust and residue build-up.
- Inspect Chains: Regularly check and lubricate chains to ensure they operate smoothly.
Step 2
Step 3
5.2.2 How is bale density changed in BALING MACHINE B?
Answer
In Baling Machine B, bale density is changed by adjusting the resistance to the hay in the baling chamber. By increasing or decreasing resistance, the machine can compact the hay more or less, which directly affects the density of the bales produced.
Step 4
5.2.3 Discuss the function of the slip clutch fitted between the PTO shaft and the flywheel of BALING MACHINE B.
Answer
The slip clutch in Baling Machine B serves to protect the machine's mechanisms from damage in the event of an obstruction. It allows the PTO shaft to slip when excessive torque is applied, preventing potential breakdowns in the drive system.
Step 5
5.3 Describe THREE safety measures that should be followed when working with the silage cutter shown below.
Answer
When working with the silage cutter, the following safety measures should be observed:
- Only Allow the Operator on the Machine: Ensure only the designated operator is on the machine to prevent accidents.
- Maintain a Safe Distance: Keep people and animals away from the working parts to avoid injury.
- Look for Obstructions: Always check for obstacles or foreign objects before the operation begins to prevent damage or injury.
Step 6
5.4 Discuss FIVE major problems that can occur during the harvesting of wheat when using the machine shown below.
Answer
Several problems can arise during wheat harvesting using the given machine:
- Loss of Grain: Grain can be lost due to blowers being set incorrectly.
- Thresher Issues: The thresher might malfunction, preventing effective grain separation.
- Too Many Foreign Particles: Foreign particles can contaminate the harvested grain, lowering quality.
- Mechanical Problems: Various mechanical issues can arise, leading to operational delays.
- Harvesting in Wet Conditions: Attempting to harvest wet grain can lead to spoilage and machinery damage.
Step 7
5.5.1 Briefly describe how the double-acting hydraulic cylinder works.
Answer
The double-acting hydraulic cylinder operates by using pressurized oil to create movement in both directions. When the control lever is in the neutral position, oil is directed to the cylinder via the control valve. For extension, oil is pumped to one side, pushing the rod out. For retraction, the oil moves to the opposite side, pulling the rod back.
Step 8
5.5.2 Which side of the double-acting hydraulic cylinder is the strongest? Motivate your answer.
Answer
The side of the double-acting hydraulic cylinder that is subjected to pull is the strongest because it has a larger area exposed to hydraulic pressure, resulting in greater force exerted when needed.
Step 9
5.6.1 Describe THREE ways to positively change a tractor's mass displacement.
Answer
To positively change a tractor's mass displacement, one can:
- Decrease the Tow Bar Pulling Force: This reduces the load the tractor is trying to lift.
- Lower the Tow Bar: Adjusting the height of the tow bar can alter gravity's effect on the tractor.
- Add Weight: Adding ballast can help stabilize the tractor and improve traction.
Step 10
Step 11
5.7.1 Choose the tractor, A or B, which would be most suitable for mounting a front-end loader system. Motivate your answer.
Answer
Tractor A would be the most suitable choice because it possesses the capability for all-wheel drive, which is beneficial for traction. Its front suspension and robust build allow it to handle heavier loads more effectively.
Step 12
5.7.2 The power steering pumps of both the tractors are powered by a V-belt drive system. Why are V-belts preferred to flat belts?
Answer
V-belts are preferred because they do not easily slip off pulleys, provide better grip as the width of pulleys increases, and require less lubrication. Additionally, they are more efficient as they are designed to handle higher power transmission.
Step 13