Question 1 of 270705eccef9ebacbc34ba4d46531

When preparing to pump flammable liquids with a centrifugal pump, you should __________.

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Question 1 of 27070
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Q

When preparing to pump flammable liquids with a centrifugal pump, you should __________.

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🔍 Key Concepts

• Centrifugal pump operation and why priming is (or isn’t) normally needed • Fire and explosion prevention when handling flammable liquids • The correct procedure for checking shaft seals/glands before starting a pump

💭 Think About

• Think about what the primary danger is when handling flammable liquids and which option most directly reduces that risk before pumping starts. • Consider how centrifugal pumps normally work: do they usually require manual priming with the product, or are systems designed to avoid exposing vapors and air–fuel mixtures? • Ask yourself which action could actually create a hazard (overpressure, static, leakage, ignition source) instead of preventing one.

✅ Before You Answer

• Verify which action focuses on detecting leaks and removing ignition/fire hazards before operation. • Check if any choice involves creating pressure or flow with valves closed, and whether that is safe with flammable cargo. • Look for an option that is clearly a standard safety precaution rather than a test or abnormal procedure (like manually lifting a relief valve).