What means of emergency escape from a shaft...

🔍 Key Concepts

• SOLAS requirements for means of escape from machinery spaces and tunnels • The general safety principle that enclosed or confined spaces usually require two means of escape where practicable • Typical arrangement of a shaft tunnel in relation to the engine room (forward) and after peak/stern area (aft)

💭 Think About

• Think about why a shaft tunnel is considered a potentially hazardous or confined space and what regulators want to ensure if a fire or flooding blocks one end. • Picture how a shaft tunnel runs through the ship: which end connects to the engine room and which end is toward the stern, and how crew would realistically escape if one end is blocked? • Consider whether having only one door at either end would satisfy modern safety principles, or whether an additional vertical escape route is normally provided.

✅ Before You Answer

• Verify whether regulations and standard practice generally call for two separate escape routes from machinery spaces and tunnels, not just one. • Check which end (forward or aft) is more likely to have a watertight door into the engine room, and which end is more practical for a ladder and watertight trunk leading to a safe space or weather deck. • Eliminate any choices that clearly conflict with the idea of redundant escape paths from a long, enclosed tunnel.

What means of emergency escape from a shaft tunnel are provided?

Two means of escape are provided, one which is a sliding watertight door at the forward end of the tunnel and the other a ladder and watertight trunk at the aft end of the tunnel.

Only one means of escape is provided which is a sliding watertight door at the aft end of the tunnel.

Only one means of escape is provided which is a sliding watertight door at the forward end of the tunnel.

Two means of escape are provided, one which is a sliding watertight door at the aft end of the tunnel and the other a ladder and watertight trunk at the forward end of the tunnel.

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🔍 Key Concepts

💭 Think About

✅ Before You Answer