Which improper activities will not cause collapse of a tank because of a vacuum?
A) Loss of nitrogen flow
B) Misalignment of blanket systems
C) Emptying a tank
D) Misalignment of pump systems
Answer: D
Explanation: A) Incorrect. Loss of nitrogen flow can cause collapse of a tank because of a vacuum.
B) Incorrect. Misalignment of blanket systems can cause collapse of a tank because of a vacuum.
C) Incorrect. Emptying a tank can cause collapse of a tank because of a vacuum.
D) Correct. Misalignment of pump systems cannot cause collapse of a tank because of a vacuum.
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