PTS PTS - Personal Track Safety COSS Roles and Responsibilities 5

Question 1

Which of the following best describes the relationship between a COSS and a Safe Work Leader (SWL)?

Accepted Answer

The SWL manages a sub-group within the overall work site, reporting to the COSS

Answer

An SWL manages a sub-group and reports to the COSS, who retains overall safety responsibility for the entire work site.

Question 2

Before a work group moves between work locations within the same possession, what must the COSS do?

Accepted Answer

Brief the group on changed hazards, escape routes, and places of safety at the new location

Answer

Moving to a new location changes the risk profile, so the COSS must re-brief the group on new hazards, escape routes, and places of safety.

Question 3

What is the maximum group size a single COSS may supervise on or near the line without additional Safe Work Leaders?

Accepted Answer

The number stated in the approved safe system of work for that task

Answer

The approved safe system of work specifies the maximum group size the COSS may manage; exceeding this requires additional SWLs or a revised plan.

Question 4

A worker tells the COSS they have not worked on or near the line for 13 months. What must the COSS consider?

Accepted Answer

Whether the gap in track work requires the worker's competence to be revalidated

Answer

A gap of more than 12 months in track work may require revalidation of competence before the worker can safely return to the line.

Question 5

During a possession, the COSS receives a report that a lookout's radio has failed. What is the immediate priority?

Accepted Answer

Withdraw the work group to a place of safety until an effective warning system is re-established

Answer

A failed lookout radio removes the agreed warning method; the work group must immediately withdraw to safety until effective protection is restored.

PTS - Personal Track Safety Practice Test