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The roller coaster seat shown opposite is fitted with a safety harness, to securely hold an individual when the roller coaster is in use - Leaving Cert Engineering - Question i - 2015
Question i
The roller coaster seat shown opposite is fitted with a safety harness, to securely hold an individual when the roller coaster is in use. Identify a suitable mechani... show full transcript
Worked Solution & Example Answer:The roller coaster seat shown opposite is fitted with a safety harness, to securely hold an individual when the roller coaster is in use - Leaving Cert Engineering - Question i - 2015
Step 1
Identify a suitable mechanism which will ensure that the safety harness remains in a closed position when in use.
Answer
A suitable mechanism to ensure that the safety harness remains in a closed position is the use of a ratchet and pawl system. This mechanism allows the harness to be securely locked in place and prevents it from accidental release during the ride. The ratchet engages with the pawl to allow movement in one direction while preventing it in the opposite direction, effectively securing the harness.
Step 2
Outline two ways in which the steel structure of the roller coaster seat may be protected from corrosion.
Answer
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Galvanising: This process involves coating the steel with a layer of zinc, which acts as a barrier against moisture and oxygen, thereby preventing rust formation.
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Painting: Applying a protective layer of paint can prevent the steel surface from directly interacting with environmental factors like moisture and air. This coating absorbs minor impacts and offers corrosion resistance.