Railway Operations Safety Procedures Quiz

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Questions and Answers

What is required before trains can proceed in the wrong direction on an obstructed line?

  • All trains must be rerouted immediately.
  • Local authorities must approve the change.
  • The scheduled speed must be adjusted.
  • A Caution Order and Line Clear must be obtained. (correct)

What speed should the first train run at during temporary single line working?

  • 10 KMPH
  • 25 KMPH (correct)
  • 40 KMPH
  • 50 KMPH

Which of the following persons must be advised in case of obstruction on a section?

  • The Chief Engineer
  • The Track Maintenance Supervisor
  • The Controller (correct)
  • The Assistant Train Manager

What actions should be taken to points at the station and Block Hut during an obstruction?

<p>They must be locked, clamped, or spiked for the line in use. (B)</p> Signup and view all the answers

What is the procedure if the Block Instruments fail?

<p>Trains shall be passed on through the Controller or as specified. (D)</p> Signup and view all the answers

Who is responsible for the custody of the keys of points connecting with a running line at stations without locking?

<p>Station Master or appointed Railway servant (B)</p> Signup and view all the answers

What condition must be satisfied before line clear can be given?

<p>The last train must arrive complete (A)</p> Signup and view all the answers

What should happen when line clear has already been given but the block section in advance is obstructed?

<p>The train must be stopped at the Home signal (A)</p> Signup and view all the answers

What must be done if a station cannot accept a train after receiving the 'Is Line Clear' signal?

<p>Answer the signal as per prescribed procedures (C)</p> Signup and view all the answers

Which signal must be kept at danger when 'Line Clear' has been given but the block section is obstructed?

<p>Home signal (C)</p> Signup and view all the answers

When can signals be taken off instead of remaining at danger upon the approach of a train?

<p>If the block section in advance is cleared before the train arrives (A)</p> Signup and view all the answers

What is required for all points before accepting an incoming train on a line?

<p>They should be correctly set and locked (C)</p> Signup and view all the answers

Under what condition can the Block Instrument Commutator be released using the Release Plungers?

<p>When a train has been shunted for precedence and the Treadle/Track circuit did not operate. (A)</p> Signup and view all the answers

What happens if the Treadle fails to operate during a train's passage?

<p>The Block Instrument Commutator locks in the 'Train on Line' position. (D)</p> Signup and view all the answers

What is the purpose of pressing the button marked 'Bell' when using the Release Plungers?

<p>To alert the Station Master for inspection. (C)</p> Signup and view all the answers

What must the Station Master confirm before pressing the Release Plunger?

<p>The line is clear for the following train and protections are in place. (B)</p> Signup and view all the answers

How long should the corresponding Release Plunger be held down?

<p>Ten seconds. (B)</p> Signup and view all the answers

What indication signifies the failure of the Treadle operation?

<p>The sound on Treadle operation is not audible. (A)</p> Signup and view all the answers

What record must the Station Master maintain regarding the Release Plungers?

<p>Every time the Release Plungers are used. (A)</p> Signup and view all the answers

What action must be taken by the operator at the same time as pressing the 'Release' button?

<p>Turning the Block Instrument Commutator to 'Line Closed'. (B)</p> Signup and view all the answers

What are the two types of bells in the Signal cabin used for?

<p>To indicate Up and Down lines in the signaling system. (D)</p> Signup and view all the answers

What information must be recorded in the special book regarding the operation of the Release Plunger?

<p>The signature of the Station Master. (A)</p> Signup and view all the answers

What should the person operating the Block Instruments in the cabin include in the Train Signal Register remarks column?

<p>The exact time the Release Plunger was operated. (D)</p> Signup and view all the answers

What action should the Station Master take upon finding a failure in the Treadle/Track circuit?

<p>Notify the station in rear and exchange Private Numbers. (A)</p> Signup and view all the answers

If a Release Plunger is not provided at a station, what should the Station Master communicate to the station in rear?

<p>The Treadle/Track circuit has failed. (C)</p> Signup and view all the answers

Which document is issued to the Loco Pilot when the Treadle/Track circuit fails and a Stop Signal is in the 'On' position?

<p>Form T/369-3b (D)</p> Signup and view all the answers

What additional information is required in the remarks column after operating the Release Plunger?

<p>The reasons for operating the plunger. (D)</p> Signup and view all the answers

Which aspect of the operation must be inspected by Transportation Inspectors?

<p>The records related to the Release Plunger operation. (D)</p> Signup and view all the answers

Which of the following is NOT a required entry in the record after the operation of the Release Plunger?

<p>The temperature reading at the station. (C)</p> Signup and view all the answers

When the Treadle/Track circuit fails, what must the Station Master in rear obtain to clear the next train?

<p>Line Clear from the station in advance. (C)</p> Signup and view all the answers

What type of remarks should the record include regarding the failure of the Treadle/Track circuit?

<p>Specific circumstances that necessitated the Release Plunger operation. (C)</p> Signup and view all the answers

What must the 'C' class station do after acknowledging the blocking for shunting purposes?

<p>Turn the Block Instrument needle to 'Train On Line'. (B)</p> Signup and view all the answers

How should the 'C' class station respond after receiving confirmation that shunting has been completed?

<p>Turn the Block Instrument needle to 'Line Closed'. (D)</p> Signup and view all the answers

What is the status of the last Stop signal lever when the system is in normal operation?

<p>Locked and cannot be taken off until 'Line Clear'. (D)</p> Signup and view all the answers

What must occur before the Block Instrument can be set back to 'On' after it has been taken 'Off'?

<p>A fresh 'Line Clear' must be granted. (D)</p> Signup and view all the answers

What should be done immediately after any signals or messages are sent related to blocking sections?

<p>Update the Train Signal Registers. (B)</p> Signup and view all the answers

When can the last Stop signal be taken 'Off' again after it has been put back to 'On'?

<p>Only after the Block Station confirms 'Line Closed'. (C)</p> Signup and view all the answers

What must happen to the Block Instrument after shunting has been completed?

<p>It must reflect 'Line Closed' status. (C)</p> Signup and view all the answers

What does the locking mechanism on the last Stop signal lever control?

<p>The ability to signal 'Line Clear'. (C)</p> Signup and view all the answers

After turning the Block Instrument to 'On', what action must not be taken for the same 'Line Clear'?

<p>The last Stop signal must not be taken 'Off' again. (C)</p> Signup and view all the answers

What should be done when the Block Instrument is set to 'Train On Line'?

<p>Shunting operations should take place without hindrance. (B)</p> Signup and view all the answers

What should be done if a signal is not acknowledged immediately after transmission?

<p>Repeat the signal every 20 seconds until a reply is received. (A)</p> Signup and view all the answers

Which signal code indicates that there is an obstruction that requires examining the train?

<p>000000-0 (D)</p> Signup and view all the answers

What is an essential prerequisite before sending any other signal?

<p>Send and acknowledge the 'Call Attention' signal. (C)</p> Signup and view all the answers

What is the correct code for acknowledging a received signal?

<p>One beat. (B)</p> Signup and view all the answers

How many beats are signaled for a 'Train Entering Section'?

<p>Three beats. (C)</p> Signup and view all the answers

What does the six beats signal with a pause indicate?

<p>Obstruction Danger. (D)</p> Signup and view all the answers

Which of the following descriptions applies to the 'Cancel Last Signal' code?

<p>Five beats. (A)</p> Signup and view all the answers

What must the Station Master do when a train is overdue and there is no response from the Station Master in advance?

<p>Report the issue to the Controller immediately. (A)</p> Signup and view all the answers

Under what condition can the 'Train out of Section' signal be sent?

<p>After the train has cleared the Home signal and all signals are put back to 'On'. (C)</p> Signup and view all the answers

What is the procedure if it becomes necessary to obstruct a line outside the Home signal while the Block section in rear is clear?

<p>Block back the line for shunting purposes. (B)</p> Signup and view all the answers

What does the Station Master of the station performing shunting need to advise to the next station in rear?

<p>The section is being blocked back for shunting purposes. (B)</p> Signup and view all the answers

Which of the following actions should be confirmed before the Block Instrument can be reset to 'On'?

<p>All signals behind the train have been put back to 'On'. (B)</p> Signup and view all the answers

What should the Station Master do if he believes a train is incomplete after sending a signal?

<p>Put all Up and Down signals in the 'ON' position. (D)</p> Signup and view all the answers

What action must the Station Master take after a train passes without a Tail-lamp?

<p>Wait for confirmation from the next station that the train is complete. (B)</p> Signup and view all the answers

When should the Station Master signal 'Obstruction Danger'?

<p>If alarm signals are observed from a passing train. (A)</p> Signup and view all the answers

What must the Station Master do after sending an 'Obstruction Danger' signal?

<p>Provide reasons for the signal by telephone to the Train Operator. (A)</p> Signup and view all the answers

What does the Caution Order provided to Loco Pilots after an obstruction notify them of?

<p>To keep a sharp lookout for obstructions on either line. (D)</p> Signup and view all the answers

What is the primary purpose of signaling 'Train Out of Section'?

<p>To indicate that a train has completed its journey and left the section. (A)</p> Signup and view all the answers

What condition must be met for the 'Train Out of Section' signal to be sent forward?

<p>Confirmation from the station in advance of a complete train. (D)</p> Signup and view all the answers

What is the Station Master's responsibility after confirming that a train is complete?

<p>Advise the Loco Pilot of the circumstances. (D)</p> Signup and view all the answers

If a dangerous condition is detected, what should the Station Master prioritize?

<p>Ensure the safety of all trains by stopping them immediately. (B)</p> Signup and view all the answers

What specific details must be recorded in the book designated for the operation of the Release Plunger?

<p>Date and time of the release (C)</p> Signup and view all the answers

Which of the following must the Station Master communicate upon finding that the Treadle/Track circuit has failed?

<p>Inform the station in rear and exchange Private Numbers (D)</p> Signup and view all the answers

What information should be included in the Remarks Column of the Train Signal Register after operating the Release Plunger?

<p>Details of reasons for operating the Plunger (B)</p> Signup and view all the answers

What document serves as authority for the Loco Pilot to pass the Stop Signal when the Treadle/Track circuit fails?

<p>Form T/369-3b (A)</p> Signup and view all the answers

What must take place before the Station Master can issue Form T/369-3b to the Loco Pilot?

<p>Exchange Private Numbers with the next station (D)</p> Signup and view all the answers

What is required in the record regarding the operation of the Release Plunger besides the train number?

<p>The signature of the Station Master (C)</p> Signup and view all the answers

When Treadles/Track circuit failures occur and no Release Plunger is available, what should the Station Master provide to reinforce communication?

<p>Private Numbers exchanged by phone (D)</p> Signup and view all the answers

What aspect of the Treadle/Track circuit failure record must be confirmed by Transportation Inspectors?

<p>Compliance with the operational procedures (C)</p> Signup and view all the answers

What additional detail is necessary in the Remarks Column after the Release Plunger is operated?

<p>The specific time of the operation (A)</p> Signup and view all the answers

What action is required from the Station Master if the Treadle/Track circuit fails and there is no Release Plunger present?

<p>Communicate Line Clear after inspection (A)</p> Signup and view all the answers

What indication is needed to confirm that the last vehicle of a train is present before it can proceed?

<p>A tail lamp or hand signal lamp showing red (D)</p> Signup and view all the answers

Which signal is used to indicate that a train is divided while running through a station?

<p>Train divided signal (six pause three) (C)</p> Signup and view all the answers

What action should immediately follow the confirmation of a 'Vehicles running away on wrong line' signal?

<p>Caution Order to the Loco Pilot should be issued (A)</p> Signup and view all the answers

What must be done if a train is found to be incomplete?

<p>Withhold the 'Train out of Section' signal (B)</p> Signup and view all the answers

When a 'Train Divided' signal is received, what action should the receiving Station Master take?

<p>Turn the Block Instrument commutator to 'Train on Line' (D)</p> Signup and view all the answers

What should be done by the Station Master if a train becomes divided when starting from a Block station?

<p>Send a 'Train Divided' signal to the station in advance (B)</p> Signup and view all the answers

What is the first action a Station Master must take when sending the 'Vehicles running away on wrong line' signal?

<p>Put all signals in the 'ON' position (B)</p> Signup and view all the answers

What signal is withheld when the 'Train out of Section' signal is not properly established?

<p>Normal operation signal (D)</p> Signup and view all the answers

What should the Station Master do upon receiving a 'Train out of Section' signal?

<p>Confirm the block section is clear (D)</p> Signup and view all the answers

If a train is seen proceeding on a wrong line, how is this situation indicated?

<p>Through a six pause four signal (C)</p> Signup and view all the answers

Flashcards

Line Clear Conditions

Specific requirements that must be met before a line is considered clear for train arrival or departure.

Complete Train Arrival

Ensuring the entire preceding train has arrived without any missing parts.

Signals 'On'

All signals behind the preceding train must be positioned to permit safe train operation.

Line Clear to Starter

The line intended to receive the incoming train must be clear from the starting point.

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Correct Point Settings

All points (switches) must be correctly set and the facing points secured for the train's entry.

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Prohibited Obstructions

Blocking the track with any obstacles is prohibited once 'Line Clear' is given. Home signal is not included in this prohibition.

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Refusing Line Clear

If a station cannot accept a train, it must appropriately signal its inability to accept the train.

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Release Plunger Function

Used to release a blocked instrument/system, typically when a train has passed or a track circuit has failed.

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Block Instrument Commutator

A switch-like device within a block instrument system.

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Treadle/Track Circuit

Sensors that indicate train presence on a track segment.

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Release Plunger Operation (Step 1)

Press the "Bell" button (Up/Down) to notify the station master.

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Release Plunger Operation (Step 2)

Station master verifies line/signals/points status are clear for safe passage.

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Release Plunger Operation (Step 3)

The station master extends and holds the corresponding release plunger.

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Release Plunger Operation (Step 4)

The bell rings and the person operating the machine presses the "release" button and adjusts the commutator switch to 'Line Closed'.

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Record of operations

Station master maintains a log of each time release plungers are used.

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"Train on Line" position

A status of the Block Instrument Commutator, signalling that a train is currently on the line.

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Wrong Direction Trains

Trains traveling against the normal direction on a triple or quadruple line due to obstruction. Require "Line Clear" authorization and hand signals.

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Line Clear

Authorization obtained via telephone to allow a train to proceed on a line used for trains traveling in the wrong direction.

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Temporary Single Line Working

A procedure used on double lines when one line is temporarily used for trains traveling in the wrong direction due to an obstruction.

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Form T/D 602

A form used to authorize temporary single line working on a double line. Provides detailed information about the train movement.

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Speed Restrictions

Limitations imposed on train speed under specific conditions, like temporary single line working or obstructed tracks.

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Train Treadle/Track Circuit Failure

A situation where a train's treadle/track circuit malfunctions, potentially due to shunting or circuit failure.

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Release Plunger Operation

Action taken to override block signals, often due to unforeseen circumstances.

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Train Signal Register

A logbook recording the operation of block instruments.

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Private Numbers

A communication method used between stations for line clearance.

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Station Master Record

Formal record details of the train's non-operation of the treadle/track circuit due to either shunting or circuit failure and time taken.

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Block Instrument Operator Record

Record kept by the person operating the block instruments, usually the station master, noting the operation of the release plunger, time, and reason.

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Treadle/Track Circuit Failure Procedure

The process followed when a treadle/track circuit fails at a station, involving communication with the rear station to obtain a line clear before moving a train.

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Form T/369-3b

A specific document issued by the rear station to the locomotive driver enabling the train to override the signal at a station.

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Blocking Section

A section of track intentionally blocked for shunting operations, preventing trains from passing through.

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Shunting Station

The station responsible for managing shunting operations within a blocked section.

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Train On Line

The state of the Block Instrument when a train occupies the blocked section.

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Line Closed

The state of the Block Instrument when the blocked section is clear and ready for trains.

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Block Instrument

A device used to signal the status of a blocked section (train on line or line closed).

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Last Stop Signal

The final signal before a train enters a station, controlled by the station in advance.

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Electric Locks

Devices that prevent the operation of signals or instruments until specific conditions are met.

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Commutator

A component of the Block Instrument that governs communication between stations.

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Fresh Line Clear

A new Line Clear signal given after the Commutator is carefully turned to Line Closed.

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What is the 'Call Attention' signal?

It's the signal used to alert the other station before sending any other signals, ensuring communication is open.

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What are the bell signal codes for 'Train Entering Section' and 'Train Out of Section'?

Three beats for 'Train Entering Section' and four beats for 'Train Out of Section'.

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What is the purpose of acknowledging signals?

To ensure the receiving station understands the signal sent and to confirm the signal transmission is complete.

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What happens if a signal isn't acknowledged?

The signal must be repeated at intervals of not less than 20 seconds until a response is received.

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'Obstruction Danger' Signal

This signal indicates a blockage or obstruction on the track and requires the train to stop and examine.

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What is the purpose of the 'Testing Signal'?

It's a signal used to test the communication system between stations.

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Method for use of Bell Codes: Call Attention

This signal must be sent and acknowledged before any other signal is transmitted, except for the 'Train Entering Section' signal.

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Train Incomplete

When a train is found to be missing one or more vehicles, it is considered incomplete.

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Train out of Section Signal

A signal sent to the Block station, indicating a train has completely left a section.

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Train Divided

When a train is running in two or more parts, it is considered divided.

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When is a 'Train Divided' signal sent?

This signal is sent to the station in advance when a train is seen running through a station in two or more parts.

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What does the Station Master do when they receive a 'Train Divided' signal?

They acknowledge the signal, turn the commutator of their Block Instrument to 'Train on Line', and follow a specific procedure.

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Vehicles Running Away on Wrong Line

A signal used when a train, part of a train, or a vehicle is travelling on the wrong line.

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What does the Station Master do when a 'Vehicles Running Away on Wrong Line' signal is sent?

They immediately put all their signals to 'ON' and issue a Caution Order to the Loco Pilot, instructing them to proceed cautiously.

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What does the Station Master receiving a 'Vehicles Running Away on Wrong Line' signal do?

They try to stop the runaway vehicles by diverting them into a siding.

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What is a Caution Order?

A warning order issued to the Loco Pilot describing the circumstances and instructing them to proceed cautiously.

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What is a siding?

A section of track that runs alongside the main line, allowing for trains to be diverted or parked.

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What to do if a train passes without a tail-lamp?

The station master must send a "Train passed without Tail-lamp or Tail-board" signal to the block station in advance. The "Train out of Section" signal cannot be sent until the station in advance confirms the entire train is complete.

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What to do if a portion of the train is missing?

The station master must immediately put all Up and Down signals in the "ON" position to stop any trains on the line and use all available means to stop oncoming trains. A Caution Order must be given to any approaching train, warning them of the obstruction.

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What happens if a train is found to be complete?

Once the station master confirms the entire train has arrived and the conditions for a "Train Out of Section" signal are met, the signal is sent to the block station in rear.

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What does "Obstruction Danger" signal entail?

When the station master notices a dangerous condition potentially obstructing the line, after taking immediate action to stop trains on the same line, they must send the "Obstruction Danger" signal to the block station in rear to stop all trains. They must also notify the block station in rear about the reason for the signal.

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What happens after "Obstruction Danger" signal?

After sending the "Obstruction Danger" signal, the station master must inform approaching trains about the obstruction. The station master can then allow trains to enter the section once the situation is resolved, but only after warning the locomotive pilots and issuing a Caution Order.

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What is a "Train Out of Section" signal?

This signal is sent to the block station in rear to indicate that a train has completely passed the station and the line is clear for other trains.

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What is "Train on Line" position?

This position on the Block Instrument Commutator indicates that a train is currently occupying a specific section of the track.

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What is "Line Closed" position?

This position on the Block Instrument Commutator signifies that a specific section of the track is clear and ready for trains to enter.

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Blocking Back

A procedure where a section of track is intentionally blocked to allow for shunting operations.

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Shunting

The process of moving railway vehicles around within a station, usually for coupling or uncoupling.

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Release Plunger

A mechanical device used to override a blocked signal, typically when a train is stuck or the track circuit fails.

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What is the purpose of the Release Plunger?

The Release Plunger allows the station master to manually override the block instrument and allow a train to pass even if the track circuit is malfunctioning or the line is blocked.

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What happens when a Treadle/Track Circuit fails?

When a Treadle/Track Circuit fails, the Block Instrument will remain 'Train on Line' even if no train is present, preventing other trains from entering the section.

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How does the Station Master handle a Treadle/Track Circuit failure?

The Station Master must communicate with the station behind, obtain 'Line Clear', and issue a form authorizing the train to pass the signal.

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What is the role of Private Numbers?

Private Numbers are a communication method used between stations during emergency situations, like a failed Treadle/Track Circuit, to ensure secure and accurate communication.

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What are the steps involved in using the Release Plunger?

The Station Master needs to verify line conditions, extend and hold the Release Plunger, and then the bell rings, signaling the train's passage.

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What happens if Release Plungers are not available?

At stations without Release Plungers, the Station Master must communicate with the rear station, obtain 'Line Clear', and issue a form authorizing the train to pass the signal.

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What is the importance of record-keeping when using the Release Plunger?

Both the Station Master and the Block Instrument operator must maintain a record of Release Plunger operations, including the reasons, time, and train number.

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Study Notes

Chapter III - Double Line Working

  • Code of Bell Signals: Used for Double Line Block Working, each signal given slowly and distinctly.
    • Call Attention: One stroke or beat.
    • Line Clear or Enquiry: Two strokes or beats.
    • Train Entering Section: Three strokes.
    • Train out of Section / Obstruction Removed: Four strokes.
    • Cancel Last Signal / Signal in Error: Five strokes.
    • Obstruction Danger / Stop and Examine Train / Train Passed without Tail Lamp / Vehicles away on Block Section / Vehicles away on Right Line: Six strokes; various pauses indicate specifics.
    • Testing Signal: Sixteen strokes.

Acknowledgement of Signals

  • Each received signal must be acknowledged.
  • No signal should be acknowledged until fully understood.
  • Signals must be repeated at 20-second intervals if not acknowledged, up to 5 times.
  • If no response, alternative communication methods should be utilized.

Method of Using Bell Codes

  • Call Attention: Signal before other signals.
    • Not required prior to "Train entering section" signal.
  • Obstruction Danger: Six beats on double line.
    • Station Master action as per rules.
    • Station Master acknowledges with 6 beats if stops train.
  • Line Clear / Line Clear Enquiry: Permission request signal.
    • Must be used after "Train Out of Section" signal received and "Line Closed" displayed.
    • Refusal of Line Clear follows specific method.
    • Must communicate refusal via block telephone.
  • Train Entering Section: Sent to station in advance when train passes the Last Stop.

Train Entering Section

  • Signal sent to block station in advance.

Train Out of Section Signal

  • Sent when train is complete and conditions for line clear are met as per GR 8.02, 8.03, 8.04.

Cancel Last Signal / Signal in Error

  • Given with 5 beats, in cases of error to cancel previous signal.
  • Private numbers exchanged.
    • Circumstances behind cancellation recorded.

Obstruction Danger

  • Signal when blocking Line Clear is necessary.
    • Stops incoming trains.
    • Follows specified procedure which includes operating Block Instrument to appropriate position and using other means.
      • If unsuccessful notify station ahead.

Stop and Examine Train

  • Used when irregularities are noted on a passing train or some other unusual occurrence happens
  • Include details of the situation, such as;
    • Signals of alarm by a passenger.
    • Goods falling off from an open wagon.
    • Vehicle on fire.

Train Passed Without Tail Lamp or Tail Board

  • Signal sent when a train is without a tail lamp/board.
  • Sent to station ahead.
  • Station in rear does not send "Train Out of Section" signal until advice from ahead confirms train is complete.

Vehicles Away on Block Section

  • Signal sent when vehicles leave the block section.

Vehicles Away on Right Line

  • Sent when vehicle leaves the right line.

Testing Signal

  • Used by block maintenance staff to verify instrument functionality.
  • Must be promptly repeated by Station Masters.

Failure of Electrical Block and Speaking Instruments

  • If block instruments fail, signals sent via telephone and Private Numbers.
  • If direct telephone fails, use Control phone to transmit information

Rules and Regulations for Working of Trains during Total Interruption of Communications

  • If communication fails between stations, prioritize using various communication tools (listed in order) such as Block Instruments, Track Circuits, Auto phones etc.
  • Specific instructions for using VHF communication stated.
    • Only permitted for freight trains in specific circumstances.

Procedure for Train Passing

  • Before any train is allowed into a block section, it must be brought to a stop, and the loco pilot/guard must be advised of line-clear conditions from duty Station Master.
  • If no reply after five attempts from station ahead, use alternative means of communication.

Train Entering/Exiting Section/Obstruction/Cancellation

  • Sending/Receiving/Canceling/Refusal procedures require explicit steps, and details of circumstances need documentation

Conditions Under Which Line Clear Can Be Given

  • For certain class of stations, "Line Clear" cannot be given without fulfilling explicit criteria (arrival of previous train, position of signals).

Obstruction When Train Is Approaching

  • Procedure in place for obstruction outside home signal when block section is clear.

Refusing Line Clear

  • Procedure for refusing line clear request (6 beats).
  • Procedure for giving line clear

Train Entering Section

  • Signal to be sent when train/portion passes the last stop signal.

Train On Line

  • Indication on instrument when train is in block section
  • Acknowledgement of "Train Entering Section" signal.

Train Out of Section

  • Indication when train has passed block section and all signals are restored.

Obstruction in Rear of Starter

  • Procedure if a train obstructs the line outside the Home signal.
  • Methods for blocking section back or forward.

Obstruction Beyond the Last Stop Signal

Blocking Forward/Backward

  • Procedures for blocking forward and backward operations.
    • Involves telephone communication with station ahead.

Last Stop Signal

  • Detailed instructions for operation of last stop signals and block instruments.

Failure of Treadles / Track Circuit

  • Procedures if treadles or track circuits fail.

Single Line Working on Double Line

  • Temporary procedures for use if one line is unavailable.

Failure of Electrical Speaking Instruments

  • Procedures for if Block Instruments fail (telephone communication etc).
  • If communication with controller also fails, trains must follow the Chapter VII of this Manual.

Persons to Be Advised

  • Controller.
  • Controlling Station Master.

Regulating Traffic

Warning Labour Gang

  • Instructions to issue warnings for labour gangs.

Line Clear Forms

Miscellaneous

  • Various forms used for documentation

Failure of Electrical Speaking Instruments

  • Instructions for if there is a Block Instrument failure.

Reporting of Failures

Obstruction of Block Section

  • Rules for when there's an obstruction.

Thick Fog or Tempestuous Weather

  • Conditions under which a train can't be operated owing to fog and weather.

Train Signal Register

  • Specifications of information recorded.

Station Masters Changing Duty

  • Specific instructions when a Station Master changes duty.

Custody of Keys of Points

  • Custody and handling of keys of points at stations.

"A" Class Stations

  • Specific conditions for giving Line Clear at "A" Class stations.

"B" Class Stations

  • Specific conditions for giving Line Clear at "B" Class stations.

"C" Class Stations

  • Specific conditions for giving Line Clear at "C" Class stations.

Blocking Back and Blocking Forward

  • Procedures for blocking forward and backward operations at specific classes of station.

Methods of Obtaining Line Clear

  • Steps involved in obtaining line clear for a train to proceed.

Train Out of Section Signals / Obstruction Removed Signals

  • Signal when section clears after train passes / when obstruction removed.

Obstruction Outside Home Signal

  • Procedure if obstruction is detected outside the Home signal.

Miscellaneous

  • Various rules and forms are stated.

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