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Explain any two of the terms: Self-locking nut, Electrical insulator, Bevel gear - Leaving Cert Engineering - Question 1 - 2009
Question 1
Explain any two of the terms: Self-locking nut, Electrical insulator, Bevel gear. Cam and follower.
Worked Solution & Example Answer:Explain any two of the terms: Self-locking nut, Electrical insulator, Bevel gear - Leaving Cert Engineering - Question 1 - 2009
Step 1
Self-locking nut
Answer
A self-locking nut contains a nylon insert which the screw thread cuts into thus holding the nut secure. The nylon insert is crucial as it prevents loosening due to vibration, making it ideal for applications where components may experience movement or dynamic loads.
Step 2
Electrical insulator
Answer
An electrical insulator is a material that offers very high resistance to current flow. For instance, plastic is a common electrical insulator because it does not allow electricity to pass through. This characteristic is essential in preventing electrical shocks and ensuring safety in electrical components.