What type of pressure storage tank is used to store material with a vapor pressure slightly greater than atmospheric pressure?
A. Spheres
B. Spheroids
C. Bullets
D. Hemispheroids
A. Incorrect. Spherical vessels are often used to store volatile materials or materials pressurized at 15 pounds per square inch (psi) or above.
B. Incorrect. Spherical vessels are often used to store volatile materials or materials pressurized at 15 pounds per square inch (psi) or above.
C. Incorrect. Bullet vessels (bullets) are horizontal cylindrically shaped vessels used to store contents at moderate to high pressures.
D. Correct. Hemispheroids are pressurized vessels used to store material with a vapor pressure slightly greater than atmospheric pressure (0.5 psi to 15 psi).
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