What is the lowest permissible flashpoint of...

Question 1 / 270705eccef9cbacbc34ba4d459cc

Question 1 of 270705eccef9cbacbc34ba4d459cc

What is the lowest permissible flashpoint of the oil used in a hydraulic valve actuating system that operates at 145 psi (1000kPa)? (46 CFR Part 58)

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Question 1 of 27070

What is the lowest permissible flashpoint of the oil used in a hydraulic valve actuating system that operates at 145 psi (1000kPa)? (46 CFR Part 58)

🔍 Key Concepts

• 46 CFR Part 58 requirements for hydraulic and lubricating systems • How flashpoint relates to fire safety in machinery spaces • Pay attention to pressure levels (e.g., 145 psi / 1000 kPa) in the regulations

💭 Think About

• Find the specific 46 CFR Part 58 section that deals with hydraulic fluid properties and read the exact minimum flashpoint requirement for systems at this pressure • Compare the regulatory minimum flashpoint value you find with all four answer choices and see which one just meets or exceeds that requirement • Think about why the Coast Guard would require a higher flashpoint fluid in systems under pressure inside machinery spaces

✅ Before You Answer

• Verify the exact flashpoint temperature specified in 46 CFR Part 58 for hydraulic systems operating around 145 psi (1000 kPa) • Confirm you are looking at the section that covers hydraulic valve actuating systems, not fuel oil or lube oil in general • Make sure the chosen option is not below the regulatory minimum flashpoint in °F and °C as stated in the CFR

Question 1 of 27070

What is the lowest permissible flashpoint of the oil used in a hydraulic valve actuating system that operates at 145 psi (1000kPa)? (46 CFR Part 58)

200°F (93°C)

212°F (100°C)

300°F (149°C)

315°F (157°C)

Question 1 / 270705eccef9cbacbc34ba4d459cc

Question 1 of 270705eccef9cbacbc34ba4d459cc

What is the lowest permissible flashpoint of the oil used in a hydraulic valve actuating system that operates at 145 psi (1000kPa)? (46 CFR Part 58)

Back

Question 1 of 27070

What is the lowest permissible flashpoint of the oil used in a hydraulic valve actuating system that operates at 145 psi (1000kPa)? (46 CFR Part 58)