| While on watch aboard a 900 psi (6.2 MPa) steam vessel, you suddenly hear a loud, piercing, high-pitched noise. Which of the following actions should you take? |
| A) Vacate everyone from the engine room immediately, as this is the preliminary signal that CO2 is about to be released. |
| B) Rapidly move towards the direction of the noise to investigate the probable source. |
| C) Cautiously move towards the source of the noise, sweeping the beam of your flash light ahead of you. |
| D) Move away from the noise to find a broom, then cautiously advance, sweeping the handle ahead of you to locate the source. |
