Answer :
Final answer:
The internal working pressure of a pressurized railcar is usually between 1000 to 2500 psi. (Option A).
Explanation:
The internal working pressure of a pressurized railcar typically ranges between 100 to 500 psi. These railcars are designed to withstand and maintain these higher pressure levels safely, which is critical when they are used for the transportation of pressurized or liquid gases. The provided video illustrates the dramatic effects of not properly managing the internal pressure of a railcar, leading to its implosion when internal pressure decreases rapidly.
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