The manufacturer of the diesel generator set...

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Question 1 of 2066636eef28f7522a1c51ff04

The manufacturer of the diesel generator set drive engines used aboard your ship-docking tug recommends that no more than a 2 psig pressure drop across a fuel primary metal-edge suction strainer be allowed before recommended servicing. Assuming that the strainer inlet pressure is 4 psig, what would be the minimum allowable outlet pressure before recommended servicing?

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Question 1 of 20

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🔍 Key Concepts

• Pressure drop across a strainer (difference between inlet and outlet pressure) • Relationship between inlet pressure, outlet pressure, and allowable drop • Distinguishing pressure units: psig vs inches of mercury (" Hg)

💭 Think About

• If the maximum allowed pressure drop is 2 psig and the inlet is 4 psig, what outlet pressure would create exactly a 2 psig drop? • How do you calculate the pressure drop from inlet to outlet using simple subtraction? • Which answer choices are in the same units as the given pressures in the problem statement?

✅ Before You Answer

• Confirm you are subtracting outlet pressure from inlet pressure to find the drop: Drop = Inlet − Outlet • Make sure you only compare psig with psig, not psig with inches of mercury • Verify which option gives a pressure drop that is equal to the recommended maximum of 2 psig

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