Which of the following is a disadvantage of pneumatic testing?

A. It allows steam to get trapped.
B. A potential for rupture exists in low-pressure, low-volume systems.
C. Ambient temperature must be within a certain range.
D. It takes longer to depressurize the system.


A. Incorrect. A disadvantage of pneumatic testing is that it takes longer to depressurize the system and there is a potential for rupture in a high-pressure, large-volume system.
B. Incorrect. A disadvantage of pneumatic testing is that it takes longer to depressurize the system and there is a potential for rupture in a high-pressure, large-volume system.
C. Incorrect. A disadvantage of pneumatic testing is that it takes longer to depressurize the system and there is a potential for rupture in a high-pressure, large-volume system.
D. Correct. A disadvantage of pneumatic testing is that it takes longer to depressurize the system and there is a potential for rupture in a high-pressure, large-volume system.

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