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Select any two of the abbreviations shown and explain their meaning: (i) LCD (ii) PCB (iii) HSS (iv) DPDT switch. - Leaving Cert Engineering - Question b - 2011
Question b
Select any two of the abbreviations shown and explain their meaning: (i) LCD (ii) PCB (iii) HSS (iv) DPDT switch.
Worked Solution & Example Answer:Select any two of the abbreviations shown and explain their meaning: (i) LCD (ii) PCB (iii) HSS (iv) DPDT switch. - Leaving Cert Engineering - Question b - 2011
Step 1
Select any two of the abbreviations (i) LCD:
Answer
LCD stands for Liquid Crystal Display. It is a flat-panel display technology commonly used in screens for televisions, computer monitors, and other electronic devices. The technology works by using liquid crystals that manipulate light to produce images. This makes LCDs energy-efficient and thinner compared to traditional CRT displays.
Step 2
Select any two of the abbreviations (ii) PCB:
Answer
PCB stands for Printed Circuit Board. It is an essential component in electronic devices, serving as a foundation for connecting different electronic components. A PCB is made from a non-conductive material with conductive pathways etched onto its surface. This allows for electrical connections to be made between various components like resistors, capacitors, and integrated circuits.