Q1: Why must an unconscious person be rescued from an enclosed space as quickly as possible?
A: Because there is a risk of lack of oxygen, which can cause death in a very short time.
Q2: What dangers might any rescuers entering an enclosed space face? Select any answers that you think apply.
A: Lack of oxygen. Flammable gas. Toxic gas.
Q3: Some substances like Benzene are not immediately toxic in small amounts, but must still be avoided. Why is this?
A: They have long term health effects.
Q4: Carbon monoxide is a toxic gas, which may be present in enclosed spaces onboard ship. Where is it most likely to come from?
A: From inert gas or diesel engine exhaust.
Q5: Which of the following should cause the immediate evacuation of an enclosed space? Select any answers that you think are correct.
A: The vessel’s general alarm sounds. The space becomes too hot. One of the team says that they feel unwell. Ventilation of the space is interrupted.
Q6: During an enclosed space entry, it is found that more work is needed than was stated on the Permit to Work. What should happen?
A: All persons should leave the space, a new risk assessment should be carried out and a new Permit issued.
Q7: What is the ‘golden rule’ for a rescue from an enclosed space?
A: Follow procedures and use a plan.
Q8: According to SOLAS, how often must enclosed space drills be carried out?
A: At least every two months.