Train Communication Systems Quiz
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Questions and Answers

What function does the Buzzer (BZ2) serve at the Receiving Station?

  • Indicates the train has stopped
  • Activates the telecommunication system
  • Provides visual indication only
  • Provides audible indication when a train passes (correct)

When does the Train on Line Indicator (TOLK) disappear?

  • After a predetermined time of 2 to 3 minutes
  • When the Buzzer is activated
  • When the train exits the Block Section
  • When the Operating Handle is turned from (L) to (N) or (R) to (N) (correct)

What is the purpose of the Time Release Indicator (TERK)?

  • Provide communication between stations
  • Indicate current flow in the line
  • Show the cancellation of 'Line Clear' after a set time (correct)
  • Signal the arrival of a train

How does the Current Indicator (Galvanometer) function?

<p>It indicates the passage of electric current (C)</p> Signup and view all the answers

What indicates that a communication line is established between two stations?

<p>The successful lifting of the handset after a 'Call Attention' signal (A)</p> Signup and view all the answers

Which step must be taken before any operation on the Tokenless Block Instrument is made?

<p>Exchange names of the stations via telephone (D)</p> Signup and view all the answers

What type of information does the Telephone provide between stations?

<p>Communication for operational assurance (A)</p> Signup and view all the answers

What position should the operating handle be turned to when acknowledging X’s signal?

<p>TRAIN COMING FROM (A)</p> Signup and view all the answers

What must be pressed along with Push Button (PB1) until the station X operates his Handle?

<p>Push Button (PB2) (D)</p> Signup and view all the answers

Which signal indicates that the train has entered the block section?

<p>Train On Line indication (D)</p> Signup and view all the answers

What action should be taken on receipt of Y’s acknowledgement signal?

<p>Turn the Operating Handle to 'TRAIN GOING TO' (B)</p> Signup and view all the answers

Which signal does Buzzer (BZ1) activate after the train enters the block section?

<p>Train On Line indication (C)</p> Signup and view all the answers

What procedure follows the sending of the 'Train Entering Section' signal?

<p>Acknowledging 'Train Entering Section' signal (D)</p> Signup and view all the answers

After turning the Operating Handle to 'TRAIN GOING TO', what must be demonstrated by sending a signal?

<p>Call Attention Signal (C)</p> Signup and view all the answers

What indication is automatically displayed once the last stop signal is taken off?

<p>Train On Line (A)</p> Signup and view all the answers

Which system component must be operated after the train enters the block section?

<p>Last Stop Signal lever (D)</p> Signup and view all the answers

What must the Station Master do before resuming normal Tokenless Block working?

<p>Advise the other Station Master and obtain acknowledgment (D)</p> Signup and view all the answers

What record should be kept in SI-24 after a Tokenless failure is rectified?

<p>The time of rectification and cause of failure (C)</p> Signup and view all the answers

What procedure must be followed if a portion of the train is left in mid-section?

<p>The Guard must signal the Station Master of the incomplete arrival (A)</p> Signup and view all the answers

What should be done when the last stop signal fails?

<p>Introduce Paper Line Clear and suspend Tokenless working (A)</p> Signup and view all the answers

How should the advice issued for a failure be handled when Tokenless Block Instruments are back in use?

<p>It must be canceled by message by the issuing Station Master (C)</p> Signup and view all the answers

What should be done if there is a delay in conveying the Train Entering Section signal?

<p>Repeat the time on block telephone and make an entry in the Remarks column. (D)</p> Signup and view all the answers

What happens after Buzzer (BZ1) stops?

<p>Buzzer (BZ2) starts operating. (C)</p> Signup and view all the answers

What action is taken when the reception signal lever is put back to normal position?

<p>Buzzer (BZ2) stops operating. (B)</p> Signup and view all the answers

Which of the following signals is sent to another station as part of communication protocols?

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

What is the process for sending a Train Out of Section signal?

<p>Keep Bell Plunger of Push Button (PB1) pressed on the last beat. (D)</p> Signup and view all the answers

When does Buzzer (BZ2) continue to ring?

<p>While the Home Signal lever is active. (D)</p> Signup and view all the answers

What is the first step in the sequence following the signal reception?

<p>Buzzer (BZ1) stops. (A)</p> Signup and view all the answers

What does the acknowledgment of a 'Call Attention' signal indicate?

<p>Communication has been successfully established. (C)</p> Signup and view all the answers

What is indicated when the reception signal is replaced to the ‘ON’ position?

<p>Train has successfully entered the section. (D)</p> Signup and view all the answers

What must a person hold in order to operate a Block Instrument?

<p>A valid competency certificate (C)</p> Signup and view all the answers

For how long is the Certificate of Competency valid?

<p>3 years (B)</p> Signup and view all the answers

What happens if staff do not attend a Refresher Course within 3 years?

<p>Their certificate may be extended for 1 additional year (A)</p> Signup and view all the answers

Who must certify the extension of the Competency Certificate?

<p>The Sr.Divisional Safety Officer (A)</p> Signup and view all the answers

Who is responsible for ensuring only competent staff operate the Block Instrument?

<p>The TI(M) / Station Manager and Section Engineer (Signal) (A)</p> Signup and view all the answers

What is required for any staff overdue for a Refresher Course?

<p>To be taken off duty until training is completed (D)</p> Signup and view all the answers

Who may exclusively use the Tokenless Instruments and bells?

<p>Only the Station Master on duty (B)</p> Signup and view all the answers

What is the consequence of failing a refresher course examination?

<p>Staff cannot operate until they pass (A)</p> Signup and view all the answers

What must happen after a competency certificate's validity is extended?

<p>It must be countersigned by an authorized person (C)</p> Signup and view all the answers

How long can the extension of the Certificate of Competency last if not renewed in time?

<p>1 year (C)</p> Signup and view all the answers

What must happen for the extension of a Certificate of Competency to be valid?

<p>The staff must pass a local re-examination. (A)</p> Signup and view all the answers

What is the maximum duration a Certificate of Competency can be extended if a Refresher Course is not attended?

<p>1 year (D)</p> Signup and view all the answers

Who is responsible for re-examining staff for the extension of their competency certificate?

<p>TI(M) / Station Manager and Section Engineer (Signal) (A)</p> Signup and view all the answers

What is a mandatory action for staff who become overdue for a Refresher Course?

<p>Be taken off duty until the course is completed. (B)</p> Signup and view all the answers

Which official is required to have a valid competency certificate to fulfill their duties under Rule 1.14(i)?

<p>TI(M) / Station Manager and Section Engineer (Signal) (A)</p> Signup and view all the answers

Which procedure must be followed regarding Tokenless Instruments and bells?

<p>Must only be used by the Station Master on duty, unless otherwise ordered. (A)</p> Signup and view all the answers

What is the consequence if the staff fails to pass the refresher training?

<p>They cannot operate the Block Instrument until they pass. (A)</p> Signup and view all the answers

What must be verified through Private Numbers before suspending the Tokenless Instrument?

<p>The status of the Shunting key at the other station (B)</p> Signup and view all the answers

What is the first action to take when both Block Instruments are locked or defective?

<p>Advise the Station Master at the other end and obtain acknowledgement (D)</p> Signup and view all the answers

Which individuals must be informed when Tokenless Block working is suspended?

<p>Specific staff including the SIM(E), SSE/JE, and DSTE of the section (B)</p> Signup and view all the answers

What should be recorded in SI-24 after the failure of the Tokenless Block working is rectified?

<p>Details of the cause of failure and the staff involved (C)</p> Signup and view all the answers

What condition must be met before resuming Tokenless Block working?

<p>Confirm that no trains are currently in the Block section (A)</p> Signup and view all the answers

Which circumstance requires the suspension of Tokenless instruments?

<p>An audible train arrival indication at the receiving station when no train is present (D)</p> Signup and view all the answers

What must be done if the last stop signal fails to go to 'ON' as the train passes?

<p>Notify the Signal Branch and wait for instructions (D)</p> Signup and view all the answers

Which situation involves an irregularity that must be reported as an accident?

<p>A train arrives at a station without 'Line Clear' (C)</p> Signup and view all the answers

What must not occur when the Block Instrument's working is suspended due to failure?

<p>Resume operations without permission (C)</p> Signup and view all the answers

Which of the following failures does NOT require immediate suspension of Tokenless instruments?

<p>Communication between stations is operational (C)</p> Signup and view all the answers

In which situation would the Block Maintainer be called to address a failure?

<p>If a failure in telephone connection occurs (B)</p> Signup and view all the answers

What is required if the last stop signal can be taken off without 'Line Clear' having been obtained?

<p>Reporting the action as an accident (D)</p> Signup and view all the answers

What condition warrants the inspection of the Block Instrument by a special permit holder?

<p>The last vehicle fails to operate after the train's passage (C)</p> Signup and view all the answers

Which of the following scenarios would prevent the resumption of work with the Block Instrument?

<p>An unlocked Block Instrument battery counter (C)</p> Signup and view all the answers

What must be done to acknowledge the audible warning after inserting the Station Master's key?

<p>Press the 'Bell Code' button. (B)</p> Signup and view all the answers

What is the sequence of actions taken when a train enters the station?

<p>Take off reception signals, train enters, return first stop signal to 'ON'. (C)</p> Signup and view all the answers

What is indicated when the 'Train Going To' button is operated?

<p>The block instrument displays 'Train Going To'. (C)</p> Signup and view all the answers

What happens immediately after the last stop signal is taken off?

<p>The 'Train on Line' indication appears. (D)</p> Signup and view all the answers

What does the operator confirm when sending 'Is Line Clear' signal to another station?

<p>The track is clear for the train to proceed. (C)</p> Signup and view all the answers

Which action signifies that the 'Train on Line' condition is active?

<p>'Train on Line' indication appears and is accompanied by an audible alert. (B)</p> Signup and view all the answers

What is the final state of the last stop signal lever after the train enters the block section?

<p>It returns to its normal position automatically. (D)</p> Signup and view all the answers

What must the operator do before first stop signal gets replaced to 'ON' position?

<p>Take off the reception signal. (D)</p> Signup and view all the answers

What does the Block Instrument indicate after the Train Entering Section signal is sent?

<p>The Block Instrument displays the movement of the incoming train. (C)</p> Signup and view all the answers

What is confirmed after accepting the 'Line Clear' inquiry on the telephone?

<p>The train's number and description have been noted and confirmed. (A)</p> Signup and view all the answers

What must be done if shunting is completed before the train clears the Block section?

<p>The shunting key must be returned to the Station Master. (A)</p> Signup and view all the answers

What action should the Loco Pilot take if the train clears the block section before shunting is completed?

<p>Ensure that Station 'B' establishes 'Line Closed' condition. (C)</p> Signup and view all the answers

Which is the correct sequence of operations to initiate shunting from Station 'A' to Station 'B'?

<p>Turn the Station Master's key and extract the shunting key. (C)</p> Signup and view all the answers

What should be acknowledged over the telephone in case of shunting completion?

<p>Completion of the shunting action and return of the shunting key. (D)</p> Signup and view all the answers

What is necessary for Station 'B' if the Line Closed condition is not established after extraction of the shunting key?

<p>Verify the shunting status with Station 'A'. (C)</p> Signup and view all the answers

Which signal is used to protect the slip siding at Station 'A'?

<p>Last Stop Signal. (B)</p> Signup and view all the answers

What should be set on the Block Instrument after usual reception of the train?

<p>Line Closed condition. (D)</p> Signup and view all the answers

When should the shunting key be replaced in the instrument?

<p>After the acknowledgment of shunting completion. (C)</p> Signup and view all the answers

What is the primary purpose of the Block Instrument during shunting operations?

<p>To control signal positions. (D)</p> Signup and view all the answers

What condition must the Block Instrument be in prior to operating shunting keys?

<p>Block Instrument must display 'Train Going To' indication. (C)</p> Signup and view all the answers

Flashcards

Buzzer (BZ2) function

Provides an audible signal at the receiving station when a train passes the home signal and stops, either by returning the signal/control slide to normal or turning the operating handle from 'TRAIN COMING FROM' to 'LINE CLOSED'.

Train on Line Indicator (TOLK)

A visual indication at both stations, appearing when a train enters a block section which disappears when the operating handle changes from 'L/R' to 'N'.

Time Release Indicator (TERK)

A visual indicator at the despatching station, appearing 2-3 minutes after canceling 'Line Clear' by operating the cancellation switch (SI).

Galvanometer function

Indicates the flow of electric current received or sent, and the operation of the corresponding block instrument at the other end, when the push button (PBI) is pressed.

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Telephone communication

Used for communication between stations. Communication initiated by lifting the handset after the 'Call Attention' signal.

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Tokenless Block Instrument Assurance

Before operating Tokenless Block Instruments, stations exchange station names over the phone to ensure correct communication; 'Call Attention' Signal sent beforehand.

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Block instrument types

Other types of tokenless block instruments function similarly. Description and operation are essentially the same.

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What is the first step for station X?

When receiving the "Is Line Clear" signal from station Y, station X turns the operating handle to the "TRAIN COMING FROM" position (R) and acknowledges the signal by pressing the Bell Plunger or Push Button (PB1) on the last beat.

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How does station X acknowledge the signal?

Station X acknowledges the "Is Line Clear" signal by keeping the Bell Plunger or Push Button (PB1) pressed on the last beat and also pressing Push Button (PB2) conjointly with (PB1) until the station Y operates their Handle.

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What is the next step for station X?

After acknowledging the signal, station X turns the Operating Handle to the "TRAIN GOING TO" position (L) on the receipt of the last beat of Y's acknowledgement signal and acknowledges line clear by giving "Call Attention" Signal (one beat).

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What happens when a train enters the block section?

When a train enters the block section, the Last Stop signal returns to the 'ON' position, the "Train on Line" indication appears, and the Buzzer (BZ1) starts operating.

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What is the role of Buzzer (BZ1)?

Buzzer (BZ1) starts operating when a train enters the block section, indicating that the train is on the line and continues until the train leaves the section.

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What is the role of the "Train on Line" Indication?

The "Train on Line" indication appears automatically when a train enters the block section and disappears when the train leaves the block section by turning the operating handle from 'L/R' to 'N'.

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What is the role of station Y after receiving the "Call Attention" signal?

After receiving the "Call Attention" signal, station Y acknowledges the signal to station X.

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What is the role of station Y after receiving the "Train Entering Section" signal?

After receiving the "Train Entering Section" signal, station Y acknowledges the signal to station X and keeps (PB1) pressed on the last beat until Buzzer (BZ1) stops.

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Train Entering Section Signal Delay

When there's a delay in conveying the 'Train Entering Section' signal on block instruments, the time of the train entering the section must be communicated through block telephone and noted in the Train Signal Register.

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Buzzer (BZ1)

The buzzer sounds when the train passes the home signal and stops. It indicates that the train has entered the section.

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Reception Signals

These signals are taken off when the train enters the station and put back to normal after the train passes the home signal.

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'Call Attention' Signal

This signal is sent to the next station to alert them that a train is entering the section. It's acknowledged by the receiving station.

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Train Out of Section Signal

This signal is sent to the receiving station when a train exits the section. The operator presses push buttons to confirm the train's exit.

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PB1 and PB2 Push Buttons

These buttons are used to confirm the 'Train Out of Section' signal. PB1 is pressed on the last beat, while PB1 & PB2 are pressed together until the receiving station confirms.

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Handle Operation (Train Out of Section)

The station receiving the 'Train Out of Section' signal operates the handle to confirm that the train has exited the section.

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Remarks Column in Train Signal Register

This column is used to record any delays or unusual events related to the 'Train Entering Section' signal.

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Tokenless Block Failure

When a Tokenless Block instrument malfunctions, the Station Master at the affected station must inform the Station Master at the other end of the section.

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Resuming Tokenless Block

After fixing a Tokenless Block instrument failure, the Station Master must ensure it's working properly and then resume normal operations, recording the time of the failure and repairs.

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Train Parting

If a train splits in the middle of a section, leaving part of the train behind, the Guard must protect the remaining portion before allowing the Loco Pilot to proceed.

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Incomplete Train Arrival

When a train arrives incomplete, the Station Master doesn't give the “Train Out of Section” report until the entire train arrives, even if the buzzer rings for the first part.

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Last Stop Signal Failure

If the Last Stop Signal fails, Tokenless Block working should be suspended, and a Paper Line Clear should be used to manage train movements.

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Block Competency Certificate

A document required for individuals operating Block Instruments, certifying they've passed the necessary exam. It is valid for 3 years.

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Refresher Course

A mandatory training program for Block Instrument operators, required every 3 years to maintain competency.

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Who issues Block Competency Certificates?

The Principal/Zonal Training Centre issues initial certifications. Local extensions can be granted by TI(M)/Station Manager and Section Engineer (Signal) after re-examination.

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TI(M) Competency for Block

The TI(M)/Station Manager and Section Engineer (Signal) must hold valid Block competency certificates to fulfill their duties related to railway signaling.

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Tokenless Block Instruments Purpose

These instruments and associated bells are only used for specific railway signaling procedures as outlined in regulations.

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Tokenless Block Instrument Operator

Normally only the Station Master on duty operates Tokenless Block Instruments, unless instructed otherwise.

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Reception Signals and Tokenless Block Instruments Failure

Reception Signals can be taken off even if the Tokenless Block Instrument fails or is locked in certain positions.

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What happens when a staff member becomes overdue for a Refresher Course?

They must be taken off duty until they complete the training.

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Bell Codes

Tokenless Block Instrument bells use specific codes to convey information, outlined in the GR 14.05 document.

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Block Instrument Operation

A block instrument is a device used for regulating train movements in a block section. It ensures that only one train occupies a section at a time.

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Tokenless Block Instrument

A type of block instrument that does not use physical tokens for authorization. It relies on electronic signaling and communication.

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TI(M) & Block Competency

The Traffic Inspector (Movement) / Station Manager and Section Engineer (Signal) must have valid block competency certificates to fulfill their responsibilities related to railway signaling.

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Tokenless Block Instrument Suspension

Tokenless block instruments must be suspended in certain failure situations, ensuring safety and preventing incorrect operation.

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Failure Types Affecting Tokenless Block Instruments

Two categories of failures require different actions: Paragraph I (minor issues) require the Block Maintainer, while Paragraph II (major issues) demand a special permit holder's inspection.

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What is the consequence of a train arriving without "Line Clear"?

A train's arrival without a "Line Clear" signal is considered an accident unless the Loco Pilot has reported conditions of total interruption.

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What is the purpose of the 'Line Clear' signal?

The 'Line Clear' signal confirms that the preceding block section is empty and ready for train entry. It ensures safety by preventing collisions.

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Operating a Tokenless Block Instrument

Only the Station Master normally operates the Tokenless Block Instrument, unless instructed otherwise, ensuring accountability and adherence to regulations.

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Tokenless Block Instrument Failure: Reception Signals?

Reception signals can be taken off even if the Tokenless Block Instrument is malfunctioning, allowing for continued train movement but requiring manual oversight.

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Refresher Course for Block Operators

Block Instrument operators are required to undergo a mandatory refresher course every 3 years, maintaining their competence and ensuring safe operation.

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Bell Codes: Tokenless Block Instruments

Tokenless block instruments use specific bell codes for communication, following guidelines in the GR 14.05 document for clear signaling instructions.

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What is the first step for Station A after receiving the "Is Line Clear" signal?

Station A acknowledges the "Is Line Clear" signal by turning the operating handle to the "TRAIN COMING FROM" position and pressing the Bell Plunger or Push Button (PB1) on the last beat.

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What does Station A do after acknowledging the "Is Line Clear" signal?

Station A turns the Operating Handle to the "TRAIN GOING TO" position on the receipt of the last beat of Station B's acknowledgement signal and acknowledges line clear by giving the "Call Attention" signal (one beat).

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What is the 'Call Attention' signal?

The 'Call Attention' signal is sent to the next station to alert them that a train is entering the section. It is acknowledged by the receiving station.

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What are reception signals?

Reception signals at a station are taken off when the train enters the station and put back to normal after the train passes the home signal.

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What happens when a train enters the station?

The First Stop signal is replaced to 'ON' position, audible warning sounds, and levers are returned to normal after the train passes the home signal.

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What is the “Train Going To” button used for?

The “Train Going To” button is operated along with the “Bell Code” button to indicate a train is leaving the station.

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What happens when a train leaves the block section?

The "Train on Line" indication automatically disappears and the train leaves the section.

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Shunting Procedure

The process of moving a train between two signals for a short distance, typically within a station or yard, without passing through the main line.

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Shunting Key

A physical key used to authorize shunting operations. It must be inserted into the block instrument to enable the shunting process.

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Slip Siding

A separate track next to the main line used to allow trains to pass each other or, in this case, allow a train to be moved to a siding while other trains continue on the main line.

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Catch Siding

A shorter track that branches off from the main line used to hold trains, typically used to allow a train to be moved to a siding while other trains continue on the main line.

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Line Closed

A state of the block instrument signifying that the train is on the main line and the block section is not available for use.

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Train Going To

A state of the block instrument signifying that the block section ahead is free for a train to operate.

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Train Coming From

A state of the block instrument signifying that a train is in the block section and it is not available for use.

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Station Master's Key

A physical key used to authorize the initiation of various procedures, including shunting and slip siding operations.

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Slip Siding Key

A physical key used to initiate the movement of a train to a slip siding.

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Verify Position (Block Instrument)

The process of confirming the state of the block instrument at the opposite station after a shunting operation to ensure the correct status is maintained.

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Tokenless Block Suspension

When a Tokenless Block instrument malfunctions or communication fails, the system must be suspended to ensure safety. This prevents incorrect signaling and potential collisions.

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Tokenless Block Failure: Shunting Key

If the Tokenless Block indication disappears after operating the TCT button and BCB, it's crucial to verify that the Shunting key was in the instrument at the other station. This ensures no unauthorized shunting operations occurred.

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Tokenless Block Failure: Procedures

When the Tokenless Block Instrument fails, a specific procedure must be followed. This includes suspending the system, notifying relevant personnel, and switching to Paper Line Clear working.

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Tokenless Block Resume

After fixing a Tokenless Block Instrument failure, the system should be resumed ONLY after recording the failure details in the Train Signal Register and confirming the instrument is operational.

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Shunting Key and Tokenless Block

The Shunting key is a physical key used to authorize short-distance train movements. It's crucial in Tokenless Block systems to ensure that the key was in the instrument at the other station if the indication disappears.

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Study Notes

Rules for Working Trains on Single Line

  • Rules govern train operations on single lines using tokenless block instruments (handle and push button types)
  • Eliminates token delays, ensuring only one train in a section at a time.
  • Stations using the tokenless system have two instruments, one for each adjoining section with phone communication.
  • Authority to proceed between stations is granted by signal indication.
  • Fixed, hand, and fog signals are still needed to protect trains from obstructions and comply with existing rules.
  • Loco pilots must follow general and subsidiary rules and signal instructions.
  • Trains start on guards' signals after the correct departure signals are received or permission from the station master.
  • Different guard duties may alter the specific rules.

Types of Instruments

  • Daido/Kyosan's handle type and Podanur's similar push button type instruments are used.

Arrangement of Instrument

  • Two instruments are used per block section (connected by two line wires).
  • Instruments can be in the station building or a cabin.
  • Station Master or Cabinmaster operates the instrument.

Description of Instruments

  • The diagrams show the components and operation of Daido/Kyosan's handle type instruments.
  • Components include an operating handle, bell plunger, push buttons, block bell, switch, counter, keys, buzzers, train on line indicator, time release indicator, and a telephone.

Operating Handle (Daido/Kyosan's)

  • Three Positions: Line Closed (vertical), Train Coming from (horizontal right), Train Going to (horizontal left)
  • The arrow on the handle indicates the current position.
  • The handle is locked in the Line Closed position until electrically released by the other station.

Bell Plunger/Push Button

  • Pressing the plunger rings a bell at the other block station.
  • Pressing bell plunger is often needed for releasing the other station's operating handle.

Other Instrument Components

  • A block bell, cancellation switch with counter, switch with counter, Station Master's Key, Occupation Key, buzzer, train on line indicator, time release indicator and telephone.
  • Each component has a specific function (e.g., canceling 'line clear', indicating occupation, or providing communication).

Signalling Trains with Daido/Kyosan's Tokenless Instruments

  • Exchange station names on the phone before any block operation.
  • Correct station confirmation for communication assurance.
  • Standardized operating procedures are explained in detail for station X and Y.

Cancelling Line Clear

  • Station Master at station with handle in "Train Going To" position must ensure the last stop signal is "ON" and signal slide is back to normal.
  • Procedure includes steps to cancel a line clear message.

Normalizing Block Instrument Post Train Arrival

  • Resetting procedures for the Block Instrument when a train returns to the dispatching station.

Motor Trolleys/ Material Trollies Operation

  • Obtaining permission and giving notices regarding train passage.
  • Instructions on passing trolleys through the block section are explained.

Tokenless Instrument Failure

  • Identifying and handling various Instrument failures (e.g., code signal failure, telephone disconnection, and issues with the last stop signal).

Failure of Last Stop Signal

  • Procedures when the last stop signal malfunctions (e.g., not going to "ON" position, issues with train arrival and signaling).

Suspension of Block Working/Last Stop Signal

  • Describes conditions requiring the suspension of block working (e.g., material passing, accidents).
  • Procedures to resume normal operations are given.

Push Button Type Instrument

  • The push-button instrument also has a relay cabinet and a control panel
  • The relay cabinet houses all the relays while the control panel has buttons, indicators, and a phone..

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Train Working Rules (PDF)

Description

Test your knowledge on the various components and functions of train communication systems, including indicators and buzzers used at receiving stations. This quiz covers essential operations and protocols that ensure effective communication between railway stations.

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