Red Seal Plumbing Practice Exam

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What safety device is built into an acetylene cylinder?

A fusible link
A safety valve
A pressure gauge
A rupture disk

The correct answer is: A fusible link

The safety device that is specifically built into an acetylene cylinder is a fusible link. This is because acetylene is a highly flammable gas that can become explosive if the cylinder is exposed to high levels of heat or pressure. The fusible link is designed to melt and release the gas in a controlled manner if the temperature of the cylinder rises to a dangerous level. This prevents the cylinder from rupturing and causing harm to the surrounding area. A safety valve is a more general term and can be built into various types of cylinders, but it may not be able to handle the specific risks posed by acetylene. A pressure gauge is used to monitor the gas levels in the cylinder and does not serve as a safety device. A rupture disk is also a potential safety device for some cylinders, but it is designed to burst at a certain pressure and release the contents of the cylinder.