A large metallic device, mounted directly in...

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Question 1 of 2066636ee728f7522a1c517eed

A large metallic device, mounted directly in the piping (usually located at the dock near the point where the vapor hose is attached), designed to prevent the passage of a rapidly moving flame through the piping is called a __________.

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Question 1 of 20

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🔍 Key Concepts

• Vapor control systems used during loading/unloading of flammable cargoes • Difference between flame arrestors (for low-speed flames) and devices for high-speed detonations • Where flame screens are typically found on a vessel (think vents, openings, or tank deck fittings)

💭 Think About

• Think about the phrase "rapidly moving flame" – does that suggest a slow-burning flame front or something more like an explosion traveling in the pipe? • The question says the device is mounted directly in the piping at the dock near the vapor hose – which of these options is specifically designed for in-line piping protection? • Which device is commonly associated with tank vents or openings on a ship rather than mounted in cargo/vapor piping?

✅ Before You Answer

• Verify which term is used in vapor control system regulations for in-line protection against high-velocity flame or detonation in piping. • Eliminate any option that is usually a screen or mesh at an opening rather than a solid device installed inside a pipe run. • Confirm that the correct device is specifically intended to stop a flame front or detonation from propagating through vapor piping.

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