| When placing a shell-and-tube heat exchanger such as a jacket water cooler into service, to insure optimal heat transfer what statement represents the correct operating procedure? |
| A) Both the water box and shell vent valves should be opened to expel any entrapped air and then reclosed. |
| B) Both the water box and shell drain valves should be opened to expel any entrapped air and then reclosed. |
| C) Both the water box and shell vent valves should be opened to expel any entrapped sediment and then reclosed. |
| D) Both the water box and shell drain valves should be opened to expel any entrapped sediment and then reclosed. |
