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</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</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</p> Signup and view all the answers

    What type of information does the Telephone provide between stations?

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

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

    <p>Train On Line indication</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'</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</p> Signup and view all the answers

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

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

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

    <p>Train On Line</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</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</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</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</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</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</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.</p> Signup and view all the answers

    What happens after Buzzer (BZ1) stops?

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

    When does Buzzer (BZ2) continue to ring?

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

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

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

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

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

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

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

    For how long is the Certificate of Competency valid?

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

    Who must certify the extension of the Competency Certificate?

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

    Who may exclusively use the Tokenless Instruments and bells?

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

    What is the consequence of failing a refresher course examination?

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

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

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

    When should the shunting key be replaced in the instrument?

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

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

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

    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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