What is the pressure range for a pressure tank car?

What is the pressure range for a pressure tank car?

• A. less than 25 psi
• B. 100-600 psi
• C. 60-100 psi
• D. 4000-45000 gallons

Answer: (B)

Pressure tank cars are designed to carry materials under elevated pressure, and the rating refers to the maximum interior pressure the car can safely withstand. For these cars, that typical service range is 100–600 psi, reflecting the pressures involved with many compressed-gas and high-pressure liquid cargos. The option of less than 25 psi would apply to non-pressurized or very low‑pressure tanks, which these are not. A range of 60–100 psi is below the common minimum for pressure tank cars, and mixing in gallons (4000–45000 gallons) is a measure of volume, not pressure.

Pressure tank cars are designed to carry materials under elevated pressure, and the rating refers to the maximum interior pressure the car can safely withstand. For these cars, that typical service range is 100–600 psi, reflecting the pressures involved with many compressed-gas and high-pressure liquid cargos. The option of less than 25 psi would apply to non-pressurized or very low‑pressure tanks, which these are not. A range of 60–100 psi is below the common minimum for pressure tank cars, and mixing in gallons (4000–45000 gallons) is a measure of volume, not pressure.