Store Management Program

A: Picking the wrong assumption leads to a false sense of ignition control and puts personnel at risk during routine handling. Ventilation only dilutes vapour concentration and limits migration; it doesn't control electrostatic energy during manual transfer. The correct choice recognises that static discharge needs bonding and earthing, not airflow, so relying on ventilation alone leaves an ignition path open.

A: Choosing the wrong response sets up an uncontrolled spill that overwhelms the sump and spreads into walkways. Increasing inventory raises the credible release volume, not vapour pressure. The correct response cuts inventory or adds containment so the physical barrier still matches the hazard.

A: Missing this leads to a paper barrier that fails during a fire and allows reactive escalation. A dashed line often signals a non-structural division; unless the barrier is continuous and sealed, the rating is meaningless. The correct choice spots the documentation gap before construction locks it in.

A: Oversizing wastes deck load allowance; undersizing causes overflow during a single-drum failure. The rule is tied to the largest container, not total volume. One 200 L drum times 1.1 gives 220 L, meeting the standard without importing assumptions from bunded tank farms.