| If a vessel is to be laid up for an extended period of time with minimal utilities provided from ashore, what statement is true as it relates to preparing a refrigeration system for lay-up? |
| A) The refrigeration system should be evacuated with a deep-vacuum pump so that the entire refrigerant charge is transferred to the atmosphere. |
| B) The refrigeration system should be evacuated with a recovery unit so that the entire refrigerant charge is transferred to a recovery cylinder. |
| C) The refrigeration system should be left in an idle condition with the refrigerant charge dispersed throughout the system. |
| D) The refrigeration system should be pumped down so that the entire refrigerant charge is stored and isolated in the receiver tank. |
