Incident Investigation and Management of Change (PSM) practice questions for the CSP exam

A refinery's written management of change (MOC) procedure is being applied to several proposed jobs on a covered process unit. Which proposed job is a change that must go through the MOC procedure before it is carried out?

1. A.Substituting a different process chemical formulation with a different composition for the one currently charged to the unit
2. B.Installing a new gasket of the same material and specification during a flange re-make
3. C.Replacing a failed pressure transmitter with the same make and model
4. D.Replacing a corroded pump with a new pump of identical design, materials and rating

A refinery unit covered by PSM is being modified under an approved management of change (MOC). The change replaces a manual transfer valve with a remotely actuated one, which alters the steps operators follow during transfers. It also changes how a contract maintenance crew isolates and services the line. The project manager wants to start up the unit Friday and proposes a toolbox talk for operators the following week. He says the contractor crew's own employer will brief them later. Which response is consistent with the standard?

1. A.Reject the plan only if the change altered the process safety information; otherwise training may follow start-up.
2. B.Accept the plan, because contract employees are the responsibility of their own employer and operators can be briefed within a week after start-up.
3. C.Reject the plan; operators and the affected contract maintenance employees must be informed of and trained in the change before start-up of the affected part of the process.
4. D.Accept the plan for operators, but require contractor training before start-up because only maintenance tasks involve isolation hazards.