A pump room is suspected of accumulating...

A pump room is suspected of accumulating...

Question 1 of 2707066636eec28f7522a1c51ca67

A pump room is suspected of accumulating gases after a ventilation machinery breakdown. Where should the combustible gas indicator case be placed when testing the pump room atmosphere for combustible gases?

Question 1 of 27070

Q

A pump room is suspected of accumulating gases after a ventilation machinery breakdown. Where should the combustible gas indicator case be placed when testing the pump room atmosphere for combustible gases?

🔍 Key Concepts

• Flammable vapors are heavier than air in many cargo pump rooms • Safe use of a combustible gas indicator (location of the instrument vs. sampling point) • Risk of ignition sources inside enclosed spaces after ventilation failure

💭 Think About

• Think about whether the entire instrument needs to be physically inside the space, or whether it can sample the air from a distance. • Which location best minimizes the risk if the instrument were to spark or fail while you are testing? • Consider how you could safely test all levels of the pump room atmosphere without moving the whole instrument into the hazardous area.

✅ Before You Answer

• Verify where industry practice places electrical equipment when sampling a potentially explosive atmosphere. • Check how a gas indicator typically collects samples (e.g., via remote sampling hose or tube). • Confirm which option keeps both the operator and the main instrument body in the safest, best-ventilated location while still allowing accurate readings from inside the pump room.