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PTS - Personal Track Safety Safe Systems of Work Flashcards

7 cards from real PTS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. When a Lookout gives a Warning of Approaching Train (WOAT), what must all workers do immediately?

    Answer: Stop work and move to a place of safety

    On a WOAT signal, all workers must immediately stop all work and move to a designated place of safety.

  2. Which document formally authorises workers to enter and work within a Possession?

    Answer: Possession Authority (PA)

    The Possession Authority (PA) is the document that formally grants authority to occupy a section of track.

  3. A Lookout must NOT be given any other duties while acting as a Lookout because:

    Answer: Split attention could cause a failure to detect or warn of approaching trains

    The Lookout role demands undivided attention so that no approaching train is missed.

  4. What is the minimum distance a place of safety must normally be from the nearest running rail?

    Answer: 2.5 m

    A place of safety must be at least 2.5 m from the nearest running rail to provide adequate clearance.

  5. Under a Lookout-Warned safe system, how far in advance of the worksite must the Lookout be positioned?

    Answer: Far enough to give workers adequate time to reach a place of safety

    The Lookout must be positioned to give workers sufficient time — based on line speed — to reach their place of safety before a train arrives.

  6. What action must the Engineering Supervisor take before any work begins under a Safe System of Work?

    Answer: Brief all workers on the specific hazards and safe system in place

    The Engineering Supervisor must brief all workers on site hazards and the safe system before work commences.

  7. If a COSS becomes incapacitated during a safe system of work, what should happen?

    Answer: Work must stop and the Engineering Supervisor must be informed immediately

    Loss of the COSS means the safe system is compromised; work must stop and the Engineering Supervisor notified immediately.

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Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. nsar.co.uk — Test delivery, time limit, renewal · verified Oct 2026
  2. info.railsentinel.co.uk — Fees, eligibility · verified Oct 2026