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Explain any two of the following: Carbon footprint, Self-locking nut, Pop riveting, Light emitting diode (LED). - Leaving Cert Engineering - Question I - 2017
Question I
Explain any two of the following: Carbon footprint, Self-locking nut, Pop riveting, Light emitting diode (LED).
Worked Solution & Example Answer:Explain any two of the following: Carbon footprint, Self-locking nut, Pop riveting, Light emitting diode (LED). - Leaving Cert Engineering - Question I - 2017
Step 1
Carbon footprint
Answer
A carbon footprint refers to the total amount of greenhouse gas emissions, primarily carbon dioxide (CO2), that are produced, directly or indirectly, by an individual, organization, event, or product. It is usually expressed in equivalent tons of carbon dioxide. Understanding one’s carbon footprint is essential for identifying ways to reduce emissions and mitigate climate change impacts.
Step 2
Self-locking nut
Answer
A self-locking nut is a type of fastener that includes a nylon insert, which tightens onto a threaded bolt or screw during installation. This design helps to prevent the nut from loosening under vibration or stress, ensuring a secure connection. Self-locking nuts are commonly used in various applications, particularly in mechanical and automotive engineering.