The flame screens installed on tank vents...

Question 1 / 270705eccef9cbacbc34ba4d45708

Question 1 of 270705eccef9cbacbc34ba4d45708

The flame screens installed on tank vents that may contain combustible gases, are designed to prevent explosions by which of the following?

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Question 1 of 27070

The flame screens installed on tank vents that may contain combustible gases, are designed to prevent explosions by which of the following?

🔍 Key Concepts

• Flame screens purpose on tank vents • How flashback (flame traveling back into a tank) is prevented • Difference between blocking vapors and cooling or stopping a flame front

💭 Think About

• Think about what happens if there is a fire or explosion outside the tank near the vent – what risk do we most want to prevent? • Does a tank vent flame screen normally stop vapors from going out, or is the tank designed so vapors must be able to escape safely? • In order to stop a flame from entering the tank through the vent, what physical property of the flame could the device act on – the vapors themselves, or the heat/temperature of combustion?

✅ Before You Answer

• Remember that tanks must be able to vent pressure safely – so which options are compatible with letting pressure/vapors escape? • Ask whether a thin metal mesh or perforated plate could realistically absorb all vapors or completely prevent vapors from entering or leaving. • Focus on the option that involves stopping or cooling a flame front coming from outside, while still permitting gas flow through the vent.

Question 1 of 27070

The flame screens installed on tank vents that may contain combustible gases, are designed to prevent explosions by which of the following?

preventing flammable vapors from entering the tank

dissipating the heat of an external flame

absorbing any flammable vapors in the vicinity

allowing the escape of flammable vapors

Question 1 / 270705eccef9cbacbc34ba4d45708

Question 1 of 270705eccef9cbacbc34ba4d45708

The flame screens installed on tank vents that may contain combustible gases, are designed to prevent explosions by which of the following?

Back

Question 1 of 27070

The flame screens installed on tank vents that may contain combustible gases, are designed to prevent explosions by which of the following?

🔍 Key Concepts

• Flame screens purpose on tank vents • How flashback (flame traveling back into a tank) is prevented • Difference between blocking vapors and cooling or stopping a flame front