9.1 Name THREE important consequences of failing to conduct preventative maintenance in an engineering workshop. 9.2 State THREE different types of mechanical drive systems. 9.3 Name the element used to enhance the strength of glass fibre. 9.4 State TWO properties of EACH of the following products: 9.4.1 Bakelite 9.4.2 Carbon fibre 9.5 Name ONE natural substance that is used to manufacture PVC. 9.6 Name THREE ways of conducting preventative maintenance on mechanical equipment. 9.7 Name the TWO main types of plastic composites. 9.8 Which plastic composite is used for non-stick coatings on frying pans?

NSC Mechanical Technology Fitting and Machining Machine specific safety measures: 9.1 Name THREE important consequ

9.1 Name THREE important consequences of failing to conduct preventative maintenance in an engineering workshop - NSC Mechanical Technology Fitting and Machining - Question 9 - 2022 - Paper 1

Question 9

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9.1 Name THREE important consequences of failing to conduct preventative maintenance in an engineering workshop. 9.2 State THREE different types of mechanical drive... show full transcript

Worked Solution & Example Answer:9.1 Name THREE important consequences of failing to conduct preventative maintenance in an engineering workshop - NSC Mechanical Technology Fitting and Machining - Question 9 - 2022 - Paper 1

Step 1

Name THREE important consequences of failing to conduct preventative maintenance in an engineering workshop.

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Answer

Increased Downtime: Failing to conduct preventative maintenance may lead to unexpected equipment failures, resulting in unplanned shutdowns and productivity loss.
Higher Repair Costs: Neglecting regular maintenance can cause minor issues to escalate into major problems, leading to costly repairs that could have been avoided.
Safety Hazards: Poorly maintained equipment may pose safety risks to workers, increasing the likelihood of accidents and workplace injuries.

Step 2

State THREE different types of mechanical drive systems.

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Answer

Belt Drive: This system uses a flexible belt to transmit motion and power between shafts.
Chain Drive: In this drive, chains connect sprockets to transfer motion, commonly used in bicycles and motorcycles.
Gear Drive: Gears mesh together to transmit torque and speed, often found in machinery and automotive systems.

Step 3

Name the element used to enhance the strength of glass fibre.

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Answer

The element used to enhance the strength of glass fibre is silicon.

Step 4

State TWO properties of EACH of the following products: 9.4.1 Bakelite

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Answer

Heat Resistant: Bakelite can withstand high temperatures without melting or degrading.
Electrical Insulator: It is a good insulator of electricity, making it useful in electrical applications.

Step 5

9.4.2 Carbon fibre

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High Strength-to-Weight Ratio: Carbon fibre is incredibly strong while being lightweight, making it ideal for various applications.
Corrosion Resistant: It is resistant to chemicals and environmental degradation.

Step 6

Name ONE natural substance that is used to manufacture PVC.

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Answer

One natural substance used to manufacture PVC is salt (sodium chloride).

Step 7

Name THREE ways of conducting preventative maintenance on mechanical equipment.

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Answer

Regular Inspections: Conduct periodic checks to identify wear and tear on equipment.
Lubrication: Ensure moving parts are regularly lubricated to reduce friction and prevent breakdowns.
Replacement of Worn Parts: Proactively replace components that show signs of wear before they fail.

Step 8

Name the TWO main types of plastic composites.

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Reinforced Plastics: These composites incorporate reinforcing fibers, such as glass or carbon, to enhance strength and stiffness.
Filled Plastics: These consist of a polymer matrix filled with additives to improve properties like toughness and heat resistance.

Step 9

Which plastic composite is used for non-stick coatings on frying pans?

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The plastic composite used for non-stick coatings on frying pans is polytetrafluoroethylene (PTFE).

9.1 Name THREE important consequences of failing to conduct preventative maintenance in an engineering workshop - NSC Mechanical Technology Fitting and Machining - Question 9 - 2022 - Paper 1

Worked Solution & Example Answer:9.1 Name THREE important consequences of failing to conduct preventative maintenance in an engineering workshop - NSC Mechanical Technology Fitting and Machining - Question 9 - 2022 - Paper 1

Name THREE important consequences of failing to conduct preventative maintenance in an engineering workshop.

State THREE different types of mechanical drive systems.

Name the element used to enhance the strength of glass fibre.

State TWO properties of EACH of the following products: 9.4.1 Bakelite

9.4.2 Carbon fibre

Name ONE natural substance that is used to manufacture PVC.

Name THREE ways of conducting preventative maintenance on mechanical equipment.

Name the TWO main types of plastic composites.

Which plastic composite is used for non-stick coatings on frying pans?

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