| Concerning safety valves, what statement is true? |
| A) Safety valves are designed to open wide when lifted by excessive pressure and only reseat when the pressure has dropped significantly. |
| B) Safety valves are always set to relieve at a pressure exceeding the maximum allowable working pressure of the system. |
| C) Safety valves are designed to throttle and adjust the flow rate to just keep up with the capacity of the pressure source. |
| D) Safety valves are designed to open wide when lifted by excessive pressure and immediately reseat when the pressure has dropped by a very small amount. |
