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Explain any two of the following: Engraving - Leaving Cert Engineering - Question 1 - 2011
Question 1
Explain any two of the following: Engraving. Printed circuit board (PCB). Parting-off tool. Lacquering.
Worked Solution & Example Answer:Explain any two of the following: Engraving - Leaving Cert Engineering - Question 1 - 2011
Step 1
Engraving
Answer
Engraving is a process that involves cutting designs or text into metal surfaces with sharp tools. Different shaped tools may be used to create a variety of designs, while power tools are often utilized for engraving letters and numbers on ornamental objects. The precision of engraving makes it suitable for artistic applications as well as for functional markings.
Step 2
Printed circuit board (PCB)
Answer
A Printed Circuit Board (PCB) is typically a plastic board about 1.6mm thick with a thin layer of copper on one side. During its production, unwanted portions of the copper are removed to create pathways for electrical connections between components. These components are soldered into place, and copper strips are used to direct current from one component to another, ensuring the efficient functioning of electronic devices.