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Explain any two of the terms: Pulley drive, Printed circuit board (PCB), Worm gear, Plug gauge. - Leaving Cert Engineering - Question 1 - 2008
Question 1
Explain any two of the terms: Pulley drive, Printed circuit board (PCB), Worm gear, Plug gauge.
Worked Solution & Example Answer:Explain any two of the terms: Pulley drive, Printed circuit board (PCB), Worm gear, Plug gauge. - Leaving Cert Engineering - Question 1 - 2008
Step 1
Pulley drive
Answer
A pulley drive is used to transmit motion and force from one shaft to another by way of pulleys and belts. Household machines such as sewing machines, spin dryers, and large vessels are often driven by broad grooved pulleys and round rubber belts. Additionally, machine tools, including drilling machines and lathes, utilize these pulleys and belts to facilitate operation.
Step 2
Printed Circuit Board (PCB)
Answer
A PCB is typically a basic board of about 1.6mm thick with a thin layer of copper on one side. This copper is used to create pads and strips, which provide electrical connections between the components placed on the board. The components are soldered to the pads using conductive materials, forming a complete circuit that allows the components to function together.