| BOTH INTERNATIONAL & INLAND Your vessel is 75 meters in length and restricted in her ability to maneuver. Visibility is restricted. What signal do you sound if you are carrying out your work at anchor? |
| A) Five seconds ringing of a bell at intervals of not more than one minute |
| B) One prolonged blast followed by two short blasts on the whistle at intervals of not more than two minutes |
| C) Five seconds ringing of a bell and five second sounding of a gong at intervals of not more than one minute |
| D) Four short blasts on the whistle at intervals of not more than two minutes |
