Which accident type involves an arbitrary rupture of pipes up to complete severance of the largest pipe in the nuclear system process barrier?

Which accident type involves an arbitrary rupture of pipes up to complete severance of the largest pipe in the nuclear system process barrier?

• A. Mechanical failure of a single component
• B. Loss of coolant due to pipe fracture
• C. Arbitrary rupture of any single pipe up to and including complete severance of the largest pipe in the nuclear system process barrier
• D. Electrical short circuit in control room

Answer: (C)

The concept being tested is a single-pipe rupture scenario inside the nuclear system process barrier, where any one pipe could fail and the rupture could range from a small leak to a complete severance of the largest pipe. This captures a single-failure event across the piping network, testing how the barrier and connected systems respond to loss of containment and potential cooling disruptions. The correct choice exactly describes this accident category: an arbitrary rupture of any single pipe up to and including complete severance of the largest pipe in the barrier. It reflects the idea of a worst-case but bounded piping failure within the barrier, which is why it’s the best fit. The other options describe different situations: a generic mechanical failure of a component, a specific consequence of pipe fracture leading to loss of coolant, and an electrical short circuit in the control room, none of which match the defined single-pipe rupture category.

The concept being tested is a single-pipe rupture scenario inside the nuclear system process barrier, where any one pipe could fail and the rupture could range from a small leak to a complete severance of the largest pipe. This captures a single-failure event across the piping network, testing how the barrier and connected systems respond to loss of containment and potential cooling disruptions. The correct choice exactly describes this accident category: an arbitrary rupture of any single pipe up to and including complete severance of the largest pipe in the barrier. It reflects the idea of a worst-case but bounded piping failure within the barrier, which is why it’s the best fit. The other options describe different situations: a generic mechanical failure of a component, a specific consequence of pipe fracture leading to loss of coolant, and an electrical short circuit in the control room, none of which match the defined single-pipe rupture category.