Final answer:
The design pressure of an IM 101 potable tank is between 14.5 to 25.4 psi (option a). This range of pressure ensures that the tank can handle the internal pressure without any leaks or failures.
Step-by-step explanation:
The design pressure of an IM 101 potable tank is between 14.5 to 25.4 psi (option a). This range of pressure ensures that the tank can handle the internal pressure without any leaks or failures. It provides enough safety margin while still allowing for efficient operation of the tank. For example, at a pressure of 14.5 psi, the tank can hold a larger volume of liquid compared to when it is at a pressure of 25.4 psi.