PTS PTS - Personal Track Safety Safety Critical Communications 3 — Questions and Answers
Question 1: When a lookout gives the warning signal, what must all workers in the track do FIRST?
- Continue working until the signal is repeated
- Stop work immediately and move to a place of safety (Correct answer)
- Wait for a verbal confirmation from the supervisor
- Acknowledge the signal before moving
Correct answer: Stop work immediately and move to a place of safety
On receiving a warning signal, all workers must immediately stop work and move to a designated place of safety without waiting for further instruction.
Question 2: Which communication method takes priority when verbal radio contact cannot be established with a train operator?
- Hand signals observed by the train crew
- A written note passed at the next station
- Flagging procedures with the correct flag color (Correct answer)
- Notifying the track supervisor by text message
Correct answer: Flagging procedures with the correct flag color
Flagging procedures using the correct flag color are the approved fallback method when radio contact with a train operator cannot be established.
Question 3: A worker receives conflicting instructions from two supervisors simultaneously. What is the correct action?
- Follow the instruction from the higher-ranking supervisor
- Stop work, seek clarification, and confirm one clear instruction before proceeding (Correct answer)
- Follow whichever instruction seems safest and continue
- Ignore both until the conflict is resolved by management
Correct answer: Stop work, seek clarification, and confirm one clear instruction before proceeding
Conflicting instructions create an ambiguous and unsafe situation; work must stop and a single clear, confirmed instruction must be obtained before proceeding.
Question 4: What is the purpose of a 'repeat-back' (read-back) in track safety communications?
- To create a formal record of the communication
- To allow the sender to correct any misunderstanding before the receiver acts (Correct answer)
- To comply with union documentation requirements
- To give the receiver time to prepare equipment
Correct answer: To allow the sender to correct any misunderstanding before the receiver acts
A read-back allows the original sender to verify the message was correctly received and understood, preventing errors from being acted upon.
Question 5: At what point is it safe to resume work after a warning signal has been given?
- Once the train has passed and is no longer visible
- When the lookout gives the all-clear signal and the line is confirmed safe (Correct answer)
- After two minutes have elapsed since the warning
- When the track foreman verbally says it is clear
Correct answer: When the lookout gives the all-clear signal and the line is confirmed safe
Work can only resume after the designated all-clear signal is given by the lookout, confirming the line is safe.
Question 6: Why must radio channels used for track safety communications be kept free of non-essential traffic?
- To conserve battery life on portable radios
- To ensure critical safety messages are heard without delay or interference (Correct answer)
- To comply with FCC frequency licensing rules
- To prevent eavesdropping by unauthorized personnel
Correct answer: To ensure critical safety messages are heard without delay or interference
Non-essential radio traffic can mask or delay critical safety messages, potentially preventing workers from receiving life-saving warnings in time.
Question 7: A lookout's radio fails during a possession. What must happen before track work continues?
- Work may continue if the lookout can still see approaching trains
- An alternative means of communication must be established and confirmed before work resumes (Correct answer)
- The lookout should borrow a radio from a nearby worker
- Work continues at reduced speed until the radio is repaired
Correct answer: An alternative means of communication must be established and confirmed before work resumes
A functioning communication system for the lookout is a prerequisite for safe track work; an alternative must be verified before any work can continue.
PTS PTS - Personal Track Safety Safety Critical Communications 3
When a lookout gives the warning signal, what must all workers in the track do FIRST?