Which is the correct pairing for pressure limits during refueling to avoid damage?

Which is the correct pairing for pressure limits during refueling to avoid damage?

• A. 60 PSI; 20 PSI
• B. 55 PSI; 15 PSI
• C. 50 PSI; 10 PSI
• D. 65 PSI; 25 PSI

Answer: (B)

Pressure control during refueling is about protecting the fuel system from over-pressurization. The UH-60 fuel tanks use bladders and sensitive fittings, so fueling must stay within specified limits to avoid rupturing the bladders or stressing hoses and valves. The correct pairing sets a maximum refueling pressure of 55 psi, with a secondary limit of 15 psi to limit the pressure that can be present in the fuel tanks/lines during fueling. Staying within these values helps prevent damage to the fuel system components while ensuring proper transfer of fuel. Higher pressures can overwhelm the bladder and fittings, while pressures set too low can lead to improper filling or venting issues.

Pressure control during refueling is about protecting the fuel system from over-pressurization. The UH-60 fuel tanks use bladders and sensitive fittings, so fueling must stay within specified limits to avoid rupturing the bladders or stressing hoses and valves.

The correct pairing sets a maximum refueling pressure of 55 psi, with a secondary limit of 15 psi to limit the pressure that can be present in the fuel tanks/lines during fueling. Staying within these values helps prevent damage to the fuel system components while ensuring proper transfer of fuel. Higher pressures can overwhelm the bladder and fittings, while pressures set too low can lead to improper filling or venting issues.