Where are flammable atmospheres on a tanker commonly found?

Flammable atmospheres on a tanker are commonly found in locations where volatile cargoes are either stored or transferred, as these operations can release flammable vapors. The correct answer highlights specific areas such as pump rooms, deckhouses, vent stacks, cargo manifolds, and vapor manifolds, which are critical points during loading, unloading, and cargo operations.

In pump rooms, flammable vapors can accumulate due to pumps working with volatile substances. Deckhouses can also attract flammable vapors due to cargo operations and proximity to cargo areas. Vent stacks are specifically designed to release vapors safely but can contribute to flammable environments if not managed properly. Cargo and vapor manifolds are directly involved in the transfer of flammable liquids, making them high-risk areas.

Other options mention areas that are less associated with the presence of flammable atmospheres. For example, the engine room can pose hazards due to fuel use, but it is not exclusively associated with the flammable atmosphere related to cargo operations. Similarly, the bridge and living quarters typically have more stringent measures for safety and are not primary zones for flammable vapors. Storage areas may contain flammable materials, but the active process of loading and unloading vapor-rich cargo is centered around pipeline manifolds