Personal Track Safety (PTS) Exam — Questions and Answers

Question 1: What is a 'cess' in the context of railway track infrastructure?

A type of signal control system
The ballast layer beneath the sleepers
The space between two running rails
The drainage channel or walkway area running alongside the track (Correct answer)

Correct answer: The drainage channel or walkway area running alongside the track

The cess is the area alongside the railway track, including the drainage ditch and ground-level walkway where workers travel.

Question 2: When working in a curve or at a location with restricted sightlines, which additional safety measure is most important?

Posting a flagger or lookout at a position that provides adequate advance warning (Correct answer)
Reducing the size of the work crew to minimize exposure
Requiring workers to stop all activity every 5 minutes to listen for trains
Installing temporary mirrors to improve visibility around the curve

Correct answer: Posting a flagger or lookout at a position that provides adequate advance warning

Restricted sightlines require a lookout or flagger positioned to see approaching trains early enough to provide the required advance warning time before they reach the work zone.

Question 3: What is the minimum ANSI class rating required for a high-visibility vest worn by track workers in active rail corridors?

Class 3
Class 2 (Correct answer)
Class E
Class 1

Correct answer: Class 2

ANSI Class 2 high-visibility apparel is the minimum required for workers in active rail corridors due to its greater retroreflective material coverage.

Question 4: What hazard does a 'live rail end protection board' provide and where must it be positioned?

It is positioned over the end of the third rail at the boundary of an isolation, warning workers not to go beyond that point where the third rail becomes live again (Correct answer)
It covers the cut end of a disconnected rail to prevent tripping
It marks the limit of the safe working area on a plain line
It protects against trip hazards at the end of platforms

Correct answer: It is positioned over the end of the third rail at the boundary of an isolation, warning workers not to go beyond that point where the third rail becomes live again

A live rail end protection board is placed over the end of the third rail at the boundary of a traction isolation, warning workers that beyond that point the third rail is live and must not be approached.

Question 5: On a high-speed line (125 mph), how does the required warning distance for lookout protected working compare to a slow line (25 mph)?

The warning distance is the same regardless of line speed
The warning distance on a 125 mph line is approximately five times greater than on a 25 mph line, requiring the look-out to be positioned much further away (Correct answer)
Lookout protected working is not permitted on lines above 100 mph
High-speed lines require only a slightly longer warning distance

Correct answer: The warning distance on a 125 mph line is approximately five times greater than on a 25 mph line, requiring the look-out to be positioned much further away

Warning distance is directly proportional to line speed — a train at 125 mph covers ground five times faster than at 25 mph, so the look-out must be positioned five times further away to give the same warning time.

Question 6: A worker observes a trespasser on the track in the work zone. What is the correct PTS response?

Continue working and ignore the trespasser
Warn the trespasser, protect the track, and notify the control center and supervisor (Correct answer)
Stop all work and wait for police to arrive before notifying the railroad
Physically remove the trespasser themselves

Correct answer: Warn the trespasser, protect the track, and notify the control center and supervisor

Workers should warn the trespasser to leave, protect the track if necessary, and immediately notify the control center and supervisor.

Question 7: Which of the following is the primary purpose of the Sentinel smart card system?

To record an individual's working hours for payment and payroll purposes.
To serve as an electronic key for accessing restricted trackside cabinets and equipment.
To verify an individual's identity, current competences, and medical and D&A fitness to work. (Correct answer)
To act as a photo ID for gaining general access to railway depots and offices.

Correct answer: To verify an individual's identity, current competences, and medical and D&A fitness to work.

The Sentinel card is a critical safety system that provides a real-time check of an individual's credentials. Its core function is to allow a COSS or site manager to confirm that the person is who they say they are and that their safety-critical competences, medical certificate, and drugs & alcohol status are all valid and up-to-date before they are allowed on or near the line.

Question 8: Who is responsible for ensuring that workers under their supervision remain within the limits of the safe system?

The individual PTS-certified worker
The Lookout
The COSS or Engineering Supervisor in charge (Correct answer)
The Possession Signaller

Correct answer: The COSS or Engineering Supervisor in charge

The COSS or Engineering Supervisor is accountable for keeping all workers within the established safe system boundaries.

Question 9: What does the term 'fouling the track' mean in railroad safety?

Blocking a signal light with debris
Causing a derailment by placing objects on the rail
Contaminating the rail with grease
Occupying a position where equipment could strike you (Correct answer)

Correct answer: Occupying a position where equipment could strike you

Fouling the track means being in a position where moving railroad equipment could make contact with you or items you are carrying.

Question 10: What information must the COSS provide when calling 999 after an on-track incident?

Their employee number and company name only
The contact details of the nearest station manager
Location on the railway (including ELR/mileage if known), nature of incident, number of casualties, and access point for emergency services (Correct answer)
The time of the incident and the train number involved

Correct answer: Location on the railway (including ELR/mileage if known), nature of incident, number of casualties, and access point for emergency services

When calling 999 the COSS must provide precise location information including ELR/mileage, the nature and severity of the incident, number of casualties, and the best access point for emergency services.

Question 11: You are working on an embankment with your team. The lookout sounds a warning for an approaching train. The designated position of safety is down the embankment slope. What must you do immediately?

Check with the COSS before moving from your work location.
Stop work and move directly to the designated position of safety. (Correct answer)
Acknowledge the driver by raising your arm, then move to the position of safety.
Gather your tools before moving to the position of safety.

Correct answer: Stop work and move directly to the designated position of safety.

When a warning is given, your first and only priority is to stop what you are doing and move to the agreed position of safety immediately and without delay.

Question 12: What does 'fouling point' mean in railway terminology?

The location where vehicles on converging lines would come into contact (Correct answer)
A contaminated section of ballast
The point where a signal aspect changes
The point where debris accumulates on the track

Correct answer: The location where vehicles on converging lines would come into contact

A fouling point is the location at a set of points (switches) where vehicles on converging lines would first come into contact with each other.

Question 13: Which of the following best describes a 'trap point' on a railway?

A signal that stops trains at a junction
A point where animals frequently trespass onto the line
A derailing device installed to prevent unauthorized vehicles from entering an occupied section (Correct answer)
A type of crossing used at busy intersections

Correct answer: A derailing device installed to prevent unauthorized vehicles from entering an occupied section

A trap point is a safety device designed to deliberately derail any runaway vehicle that passes it, protecting against unauthorized movements into occupied sections.

Question 14: Who is responsible for appointing a lookout for a track work activity?

The Network Rail control room
The COSS or person in charge of the work (Correct answer)
The lookout themselves
The train driver

Correct answer: The COSS or person in charge of the work

The COSS (Controller of Site Safety) or person in charge is responsible for appointing a qualified and competent lookout.

Question 15: Why must workers not run while on or near the railway track?

Workers may run to their position of safety but must not run at other times
Running is prohibited because it creates excessive noise that disturbs train drivers
Running is only prohibited when carrying heavy equipment
Running on or near the track risks losing footing on uneven ballast, stumbling into the running line, or missing warning signals — all potentially fatal (Correct answer)

Correct answer: Running on or near the track risks losing footing on uneven ballast, stumbling into the running line, or missing warning signals — all potentially fatal

Running on uneven ballast risks falls and stumbling into the running line. Workers must walk purposefully on the track — only rapid, controlled movement toward a position of safety is appropriate when a warning is given.

Question 16: What is the minimum distance from the nearest rail that constitutes a position of safety on a plain line with no structures?

At least 2 metres from the nearest rail of any running line, on level ground with no obstructions (Correct answer)
1 metre from the nearest running rail
0.5 metres — enough to be clear of the train's body
3 metres from the centre of the nearest track

Correct answer: At least 2 metres from the nearest rail of any running line, on level ground with no obstructions

The minimum position of safety is at least 2 metres from the nearest running rail on a plain line, providing clearance from the train body, air pressure effects, and any projecting objects.

Question 17: What is the correct procedure for stepping over a rail when crossing it on foot?

Step on the rail as it provides a firm, stable surface
Step over the rail without stepping on it — rails are slippery and stepping on them risks a fall onto or toward the track (Correct answer)
Crawl under the rail if there is insufficient clearance to step over
Jump over the rail to cross it as quickly as possible

Correct answer: Step over the rail without stepping on it — rails are slippery and stepping on them risks a fall onto or toward the track

Workers must step over rails without standing on them. Rails, especially when wet, are extremely slippery and stepping on a rail risks slipping and falling toward the track.

Question 18: Why must conductive tools and equipment be kept a safe distance from the third rail even during approved track work?

Conductive materials can damage the third rail surface, requiring expensive repairs
Conductive tools may interfere with train detection systems
Health and Safety regulations prohibit metal tools near railways
Metal tools can complete an electrical circuit between the third rail and earth or adjacent rail, causing electrocution or equipment damage even when workers do not touch the rail directly (Correct answer)

Correct answer: Metal tools can complete an electrical circuit between the third rail and earth or adjacent rail, causing electrocution or equipment damage even when workers do not touch the rail directly

Conductive tools bridging the third rail to an earthed surface create an electrical circuit — workers holding the tool can be electrocuted even without directly touching the third rail.

Question 19: Which safe system of work is appropriate when line speed is too high for a Lookout-Warned system to be effective?

Extended Warning Time system
Absolute Block working
Bi-directional working
Blocked Line or train-free line guarantee (Correct answer)

Correct answer: Blocked Line or train-free line guarantee

At high line speeds, a Lookout cannot provide sufficient warning time, so a blocked or train-free line guarantee must be used instead.

Question 20: What documentation should a COSS produce before accessing a site for the first time?

A verbal briefing note prepared for team members only
A personal diary entry noting the site address and planned work tasks
Only their Sentinel card — no other documentation is needed
A site-specific risk assessment and method statement (RAMS), reviewed and signed off by the Principal Contractor, which identifies all hazards, controls, safe systems of work, and emergency procedures for the specific site (Correct answer)

Correct answer: A site-specific risk assessment and method statement (RAMS), reviewed and signed off by the Principal Contractor, which identifies all hazards, controls, safe systems of work, and emergency procedures for the specific site

Before first accessing a site, a site-specific Risk Assessment and Method Statement (RAMS) must be produced, reviewed, and authorised by the Principal Contractor — identifying hazards, controls, and emergency procedures.

Question 21: What is the first action a COSS must take if a worker is struck by a train or seriously injured on site?

Complete an accident report form
Continue work to prevent delay to the railway
Notify the company safety manager before taking any action
Ensure the area is safe, call emergency services (999), and inform the signaller to stop trains (Correct answer)

Correct answer: Ensure the area is safe, call emergency services (999), and inform the signaller to stop trains

The immediate priority is to ensure safety of remaining workers, call 999 for emergency services, and contact the signaller to stop train movements in the area.

Question 22: Before starting work, what must be confirmed about the lookout warning system?

The lookout has a mobile phone
All workers know the agreed warning signal and their designated position of safety (Correct answer)
Train times have been checked against the timetable
The lookout has been briefed by the train driver

Correct answer: All workers know the agreed warning signal and their designated position of safety

All workers must be briefed on the agreed warning signal and know exactly where their designated position of safety is before work begins.

Question 23: What is the term for the minimum distance that track workers must keep from a running line when a train is approaching?

Cess distance
Warning distance
Clearance distance
Position of safety (Correct answer)

Correct answer: Position of safety

A position of safety is the distance and location where a track worker is clear of all moving trains and other hazards on the line.

Question 24: You are tasked with carrying a long metal object, such as a ladder, in an area with Overhead Line Equipment (OLE). What is the minimum safe distance you must maintain between the object and the live OLE?

2.0 metres (6 feet 6 inches)
1.25 metres (4 feet)
2.75 metres (9 feet) (Correct answer)
3.0 metres (10 feet)

Correct answer: 2.75 metres (9 feet)

Overhead Line Equipment (OLE) carries 25,000 volts AC. To prevent the electricity from arcing, a minimum distance of 2.75 metres (9 feet) must be maintained between the live equipment and any person or object they are carrying.

Question 25: What does IWA stand for in the context of railway track safety?

Individual Working Alone (Correct answer)
Immediate Warning Alarm
Integrated Warning Authority
Internal Work Assessment

Correct answer: Individual Working Alone

IWA stands for Individual Working Alone. It is a Safe System of Work that allows a single competent and authorised person to work on or near the line without requiring a separate COSS or lookout, provided specific conditions relating to line speeds, work type, and competency are met.

Question 26: You are issued with new safety footwear for trackside work. Which specific features must these boots have to comply with Network Rail standards?

Steel toe caps and a waterproof lining.
Electrical hazard resistance and slip-resistant soles.
Ankle support and a penetration-resistant mid-sole. (Correct answer)
Quick-release laces and a comfort insole.

Correct answer: Ankle support and a penetration-resistant mid-sole.

Network Rail standards mandate that safety footwear must not only have a protective toe cap but also provide ankle support to prevent twists and sprains on uneven ballast, and a penetration-resistant mid-sole to protect against sharp objects underfoot, such as sheared bolts or track clips.

Question 27: Under PTS rules, what must happen before removing blue flag protection from equipment?

All workers who applied the protection must confirm they are clear (Correct answer)
A two-hour waiting period must elapse
The supervisor must call the dispatcher for approval
The nearest track foreman must sign a clearance form

Correct answer: All workers who applied the protection must confirm they are clear

Blue flag protection may only be removed by or with the authorization of the same workers who applied it, once they are all clear of the equipment.

Question 28: What is the primary role of a lookout in a PTS working environment?

To direct train movements
To record train times
To operate track machinery
To warn track workers of approaching trains (Correct answer)

Correct answer: To warn track workers of approaching trains

A lookout's primary role is to warn track workers of approaching trains so they can reach a position of safety in time.

Question 29: A Sentinel cardholder notices that a colleague appears unwell before a trackside shift. What is the correct course of action?

Contact Sentinel directly without telling the supervisor
Report the concern to the supervisor so a fitness assessment can be carried out before the colleague accesses the line (Correct answer)
Say nothing to avoid conflict and let the colleague decide
Allow the colleague to start work and monitor them throughout the shift

Correct answer: Report the concern to the supervisor so a fitness assessment can be carried out before the colleague accesses the line

Raising a fitness concern with the supervisor before the shift starts ensures no unfit worker accesses the line, protecting both the individual and the team.

Question 30: What is the hazard associated with a 'derailed vehicle' near track workers?

Increased noise levels only
Risk of secondary derailment, unstable rolling stock movement, and live electrical hazards (Correct answer)
Reduced visibility due to dust or smoke only
Contamination of the ballast with fuel oil

Correct answer: Risk of secondary derailment, unstable rolling stock movement, and live electrical hazards

A derailed vehicle presents multiple simultaneous hazards including further uncontrolled movement, potential live electrical contact, and risk of secondary derailments.

Question 31: What should a COSS do if a designated position of safety becomes compromised during the work (e.g., blocked by equipment)?

Allow workers to use the best available alternative without formal review
Move the equipment slightly and continue without formal review
Extend the warning time to compensate for the blocked refuge
Immediately suspend work, reassess the safe system of work, identify a new position of safety, and rebriefed all workers before allowing work to resume (Correct answer)

Correct answer: Immediately suspend work, reassess the safe system of work, identify a new position of safety, and rebriefed all workers before allowing work to resume

If a position of safety is compromised, work must be suspended immediately and the safe system of work revised to identify and brief workers on a new, adequate position of safety.

Question 32: Steel-toed safety boots worn on the track must meet which ASTM standard for impact resistance?

ASTM B117
ASTM D1668
ASTM F2413 (Correct answer)
ASTM E1354

Correct answer: ASTM F2413

ASTM F2413 is the standard specification for performance requirements for protective (safety) toe cap footwear used in industrial and rail environments.

Personal Track Safety (PTS) Exam

The PTS certification exam tests individuals on safe working practices near operational railway tracks in the UK, including hazard awareness, safe systems of work, and emergency procedures.

Questions

45 min

Time Limit

80%

To Pass

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These practice questions were written with AI tools. They are not real exam questions. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

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

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