Air Brake Safety Protocols Quiz
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Questions and Answers

What must be clearly stated on the Brake Power Certificate before a loco pilot can move a loaded train from the loading point?

  • The last maintenance date of the train
  • The schedule of the train
  • The destination of the train (correct)
  • Total number of wagons loaded

What should the crew do before starting the train to prevent uncoupling?

  • Ensure CBC push & pull (correct)
  • Inspect the track conditions
  • Confirm the speed limit
  • Check the fuel levels

Under what condition is a Brake Power Certificate considered invalid?

  • If the Brake Power Certificate is not signed
  • If the rake composition changes by 3 wagons
  • If the rake is stabled for less than 12 hours
  • If the rake is stabled for more than 24 hours (correct)

What is required for the Brake Power Certificate to remain valid regarding changes in rake composition?

<p>Must not change by 4 or more wagons (A)</p> Signup and view all the answers

What should the outgoing loco pilot do with the Brake Power Certificate if leaving the train without relief?

<p>Deposit it with the nominated authority (C)</p> Signup and view all the answers

What is the primary purpose of the visual inspection in air brake maintenance?

<p>To identify any damage in brake components (B)</p> Signup and view all the answers

What should be done with the hand brakes of all wagons before conducting a rake test?

<p>They should be fully released (A)</p> Signup and view all the answers

What is the function of the Test Rig in rake testing?

<p>To provide air supply for testing (C)</p> Signup and view all the answers

Which component must be ensured to be in the 'Empty' position when conducting a test on an empty load box?

<p>Operating Handle (C)</p> Signup and view all the answers

What is necessary to check before connecting the brake and feed pipes during a rake test?

<p>Confirm that couplings form a continuous air passage (A)</p> Signup and view all the answers

What must be kept OPEN except for the rear end of the train during rake testing?

<p>Angle Cocks (A)</p> Signup and view all the answers

What needs to be verified regarding hose couplings before the rake testing begins?

<p>They are coupled to form a continuous air passage (A)</p> Signup and view all the answers

What should be done if the brake cylinder is not working due to a damaged outer tube?

<p>Replace the brake cylinder (A), Isolate the defective brake cylinder (C)</p> Signup and view all the answers

What is an essential practice for the handling and storage of brake cylinders?

<p>Use a trolley for moving wooden cases (C)</p> Signup and view all the answers

What action should staff take if the brake cylinder is not releasing?

<p>Move the isolating cocks to the close position (A)</p> Signup and view all the answers

What does malfunctioning of the brake cylinder indicate?

<p>A damaged internal mechanism (D)</p> Signup and view all the answers

What must be done after isolating the defective brake cylinder?

<p>Provide necessary adjustments and replacements (A)</p> Signup and view all the answers

What issue arises if the APM device bracket is not properly fitted?

<p>Sensor arm fails to function properly (B)</p> Signup and view all the answers

What should be done if the hand brake cable is damaged?

<p>Replace the damaged hand brake cable (D)</p> Signup and view all the answers

What is the first step to take if the brake cylinder is not releasing due to malfunctioning of the DV?

<p>Vent the air by moving the handle to the close position (C)</p> Signup and view all the answers

What is necessary when the internal mechanism of the brake cylinder is damaged?

<p>Replace the brake cylinder and repair the system (D)</p> Signup and view all the answers

What is the purpose of the GDR checks after each loading/unloading?

<p>To ensure safety and integrity of the wagons (C)</p> Signup and view all the answers

How long is the Brake Power Certificate (BPC) valid for a premium rake?

<p>12 days (D)</p> Signup and view all the answers

What should be mentioned after the validity period of the BPC?

<p>No fresh loading is permitted (D)</p> Signup and view all the answers

What should be ensured when installing the bush and dowel on brake cylinder mounting pins?

<p>The bush and dowel must be used correctly. (D)</p> Signup and view all the answers

Which system can the rake be fitted with as indicated in the document?

<p>Single pipe / Twin pipe air brake system (B)</p> Signup and view all the answers

What preventive action should be taken regarding the APDs on the mounting pins of the primary brake beam?

<p>APDs must be provided and properly installed. (C)</p> Signup and view all the answers

Which of the following details is NOT collected in the particulars of wagons enroute?

<p>Date of inspection (D)</p> Signup and view all the answers

What is the role of the Loco Pilot during the enroute problems section?

<p>To report problems and actions taken (D)</p> Signup and view all the answers

When correcting the inappropriate APD on an APM device, what is the main focus?

<p>Ensuring the APD performs its intended function. (B)</p> Signup and view all the answers

What should be done if the brackets for the hand brake are incorrectly located?

<p>Move the brackets to the correct location as per the RDSO drawing. (A)</p> Signup and view all the answers

How many operating cylinders are noted in the brake power section?

<p>Number of operating cylinders (B)</p> Signup and view all the answers

What is a critical action to take for the mounting pins of the secondary brake beam?

<p>Provide APDs and ensure their fitment. (C)</p> Signup and view all the answers

Which aspect is NOT included in the enroute problems noticed and attention given section?

<p>Cargo delivery schedule (A)</p> Signup and view all the answers

What happens if the BPC is expired and loading is attempted?

<p>Loading is not allowed (A)</p> Signup and view all the answers

How should the functionality of the hand brake arrangement be checked?

<p>By applying the brakes after ensuring proper fitment. (A)</p> Signup and view all the answers

What is the initial information required in the brake power certificate?

<p>Air pressure readings on departure (B)</p> Signup and view all the answers

Which of the following is NOT a preventive action for mounting pins?

<p>Ignoring the need for inspection. (D)</p> Signup and view all the answers

What is necessary to ensure the proper functioning of the brake cylinder pin?

<p>Providing both bush and dowel. (A)</p> Signup and view all the answers

What action should be taken for the push rod mounting pins?

<p>Ensure APDs are provided and properly fitted. (B)</p> Signup and view all the answers

Which statement about brackets for the hand brake is true?

<p>Their correct location is verified according to a specific drawing. (D)</p> Signup and view all the answers

What is the minimum Brake Power percentage that must be maintained for premium rakes before they are turned out?

<p>95% (D)</p> Signup and view all the answers

How long is the grace period allowed before a premium rake must undergo the next intensive examination after the issuance of the Brake Power Certificate?

<p>15 days (D)</p> Signup and view all the answers

Which entity is primarily responsible for monitoring the movement of premium rakes?

<p>Both A and B (C)</p> Signup and view all the answers

What condition must be met for a rake to be certified as a premium rake?

<p>Examination at nominated points (C)</p> Signup and view all the answers

What is required after each loading or unloading of a premium rake?

<p>Examination by the Guard and Loco pilot (A)</p> Signup and view all the answers

What is the maximum time allowed before a loaded premium rake must be presented for examination after the 12-day validity period of the BPC?

<p>3 days grace period (A)</p> Signup and view all the answers

Which color paper should the Brake Power Certificate for Premium end-to-end rakes be printed on?

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

What must the outgoing loco pilot verify regarding the Brake Power Certificate (BPC) before starting the train?

<p>That the BPC corresponds to the wagon numbers on the train. (C)</p> Signup and view all the answers

Under which condition can the Brake Power Certificate (BPC) still be valid despite changes in the train configuration?

<p>If less than 2 wagons are changed. (A)</p> Signup and view all the answers

What action should be taken if the Brake Power Certificate (BPC) is found to be invalid before starting the train?

<p>Immediately notify the Control Office for instructions. (B)</p> Signup and view all the answers

What should be confirmed regarding air pressure before the train departs?

<p>There is consistent pressure across all vehicles. (B)</p> Signup and view all the answers

What is one of the requirements for the BPC to be considered valid after a loading or unloading operation?

<p>The rake must not be stabled for more than 24 hours. (C)</p> Signup and view all the answers

What is a key observation made during the rolling-in examination of freight trains?

<p>Detecting skidded wheels (D)</p> Signup and view all the answers

Which of the following activities is performed during the intensive examination of originating trains?

<p>Detachment of damaged/sick wagons (C)</p> Signup and view all the answers

During the rolling-in examination, what temperature threshold indicates a sick axle box?

<p>Above 900C (D)</p> Signup and view all the answers

Which inspection is NOT part of the freight train examination and repair activities?

<p>Inspection of passenger compartments (B)</p> Signup and view all the answers

What should be done with the incoming Brake Power Certificate during freight train examination?

<p>Collect it by the C&amp;W staff (D)</p> Signup and view all the answers

Which of the following is part of the rolling-in examination process?

<p>Feeling axle boxes for temperature (B)</p> Signup and view all the answers

What is the first step taken once the train has been offered for examination?

<p>Protecting the rake at both ends (A)</p> Signup and view all the answers

Which of the following activities is NOT included in the rolling-in examination?

<p>Assessing train schedules and timings (D)</p> Signup and view all the answers

What type of examination focuses on thorough checks and repairs upon the train's arrival?

<p>Intensive examination (C)</p> Signup and view all the answers

When conducting inspections and repairs, what should be checked regarding safety fittings?

<p>Their deficiency status (B)</p> Signup and view all the answers

What must be ensured regarding the control of the angle cocks during GDR checks?

<p>All angle cocks must be in the open position except the one at the end of the train. (D)</p> Signup and view all the answers

Who is responsible for the post-tippling examination of the rake in the absence of TXR staff?

<p>Both Guard and Loco pilot. (A)</p> Signup and view all the answers

What is a necessary action if the Brake Power Certificate (BPC) becomes invalid?

<p>A GDR check must be conducted before moving the rake to the nearest train examination point. (C)</p> Signup and view all the answers

What is the maximum number of dummy/inoperative cylinders allowed during a GDR check?

<p>Must not exceed the limits prescribed. (B)</p> Signup and view all the answers

What should be done with the empty/load device handles during GDR checks?

<p>Keep them in the correct position based on the rake status. (B)</p> Signup and view all the answers

What primary factor should GMs consider when deciding who conducts post-tippling checks?

<p>Local conditions and recommendations. (D)</p> Signup and view all the answers

What is the condition of the air hose at the end of the train during GDR check?

<p>It should be closed to maintain brake pressure. (C)</p> Signup and view all the answers

What action must be taken regarding the charged properties upon a train's departure from a non-TXR point?

<p>Ensure continuity of the brake pipe pressure. (C)</p> Signup and view all the answers

What should be the status of the brake pipe during the attachment/detachment of wagons at a non-TXR point?

<p>Continuity of the brake pipe pressure must be ensured. (C)</p> Signup and view all the answers

What is the maximum allowable drop in brake pipe pressure gauge over one minute?

<p>0.25 kg/cm2 (D)</p> Signup and view all the answers

When significant leakage is detected, what should be immediately applied to identify the leakage point?

<p>Soap water solution (C)</p> Signup and view all the answers

What action should be taken if heavy leakage cannot be arrested?

<p>Isolate or detach the wagon (A)</p> Signup and view all the answers

What material is permitted for temporarily arresting leakage at threaded joints?

<p>Teflon tape (D)</p> Signup and view all the answers

What should be done when the distributor valve leakage cannot be arrested?

<p>Close the distributor valve isolating cock (D)</p> Signup and view all the answers

Which step is NOT part of the brakes testing protocol using the Test Rig?

<p>Conduct a pressure test on unused parts (C)</p> Signup and view all the answers

What should be clearly marked on the wagon if leakage can only be temporarily arrested?

<p>Mark to notify primary depot for attention (D)</p> Signup and view all the answers

What is a critical action regarding the brake pipe angle cocks?

<p>They should remain open except for shunting operations (C)</p> Signup and view all the answers

What does the mobile test rig allow for regarding rake testing?

<p>It enables testing in yards before connecting the train (A)</p> Signup and view all the answers

What is indicated by the audible hissing sound in the context of leakage?

<p>Heavy leakage at specific points (C)</p> Signup and view all the answers

Flashcards

Visual Inspection (Air Brakes)

Checking air brake sub-assemblies for damage (brake pipe, hose coupling, etc.) and fixing any issues.

Rake Test

Testing train brake capability using a special device (test rig) or locomotive, checking leakages & brake operation.

Test Rig

A portable device for performing rake tests, offering locomotive-like capabilities with compressed air supply from a depot compressor.

Train Brake Hand Brakes

Ensure all hand brakes are fully released before starting any rake tests.

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Empty/Loaded Load Box

The position of the empty/loaded box operating handle must be correct (empty or loaded) depending on the wagon's load.

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Continuous Air Passage

Hose couplings of brake pipe & feed pipe on connected wagons must be coupled for a smooth flow of air from locomotive to the rear of the train.

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Leakage Check (Rake)

Ensuring correct coupling of brake and feed pipes during rake test to avoid air leakage from the joint, check with a diesel/electric locomotive.

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Brake Cylinder Damage

Brake cylinder damage occurs when the outer tube is damaged. This can result from improper handling or storage, causing the brake cylinder to malfunction.

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Hand Brake Cable Damage

If the hand brake cable is damaged, the hand brake may become inoperable, and require repair or replacement of the brake cylinder.

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Brake Cylinder Not Releasing

A malfunctioning pressure valve (DV) can prevent the brake cylinder from releasing. Internal damage to the cylinder mechanism can also cause this issue.

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Isolate Defective Brake Cylinder

Isolate the defective brake cylinder using an isolating cock to safely address the malfunction and allow for repairs or replacement.

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Malfunctioning DV

A malfunctioning pressure valve (DV) can prevent the brake system from releasing pressure, leading to braking problems.

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APM Device Improper Fitment

The APM device bracket not correctly fitted on the underframe leads to sensor arm misalignment with the bogie side frame.

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Brake Cylinder Repair

Damaged or malfunctioning brake cylinders need replacement or repair, depending upon the extent of the issue and potential future risk of damage.

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Isolate the DV

To isolate the pressure valve move the R-charger handle to a closed position to prevent further problems.

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Releasing the Air from Brake Cylinder

To release air pressure from the brake cylinder, move the handle of isolating cocks for venting.

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Missing APDs on Brake Cylinder Pin

Brake cylinder mounting pins are missing the appropriate fitting (APD).

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Missing APDs on Primary Brake Beam Pin

Mounting pins on the primary brake beam lack the necessary APDs.

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Missing APDs on Secondary Brake Beam Pin

APDs are missing from the secondary brake beam mounting pins.

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Missing APDs on Push Rod Pin

Mounting pins on the push rod need APDs.

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Inappropriate APD on APM Device

Incorrect APD is fitted on the APM device.

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Incorrect Hand Brake Bracket Location

Hand brake brackets are not placed correctly as per the drawing.

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Hand Brake Functional Check

Verify the proper operation of the hand brake after any repairs or adjustments.

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Action by Workshop for Missing APDs on Brake Cylinder Pins

The workshop must provide and install the necessary bush and dowel on the mounting pins.

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Action by Workshop for Missing APDs on Brake Beam Pins (Primary/Secondary)

Workshops must ensure APDs (appropriate fitting) are provided on the primary and secondary brake beam mounting pins.

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Action by Workshop (APD on Push Rod)

Workshop needs to provide fitting (APDs) on the push rod mounting pins.

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Brake Power Certificate (BPC)

A document certifying the braking capacity of a train, used as a crucial validation step before train movement.

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GDR Check

A systematic check performed on the train to critically evaluate brake system and its operational status.

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Continuity of Air Pressure

Ensuring uninterrupted airflow throughout the entire train's brake system, from the locomotive to the last car.

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Brake Power Certificate Validity

The BPC is valid if the train composition hasn't been changed significantly (over 4 wagons) and it hasn't been stabled over 24 hours, with a 3-day grace period.

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Wagon Number Listing

The designated list identifying the numbered sequence of each wagon in the train, that the loco pilot and guard will verify to ensure the BPC accuracy.

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GDR Checks

Checks performed by the Guard and Driver (GDR) after loading/unloading to ensure wagon safety and operational readiness.

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Wagon Detachement/Attachment

Recording wagons detached or attached during transit, including the reason.

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Enroute Problems

Problems faced during train transit, along with the actions taken to address them.

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Brake Power Certificate (BPC)

Document verifying train brake efficiency; valid for a specific period (12 days).

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Brake Power Percentage

Measure of a train's brake efficiency, represented by a numerical value.

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Air Pressure on Departure

Air pressure measurement in the locomotive prior to departure.

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Brake Power Pressure

Air pressure reading in the brake system.

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Single/Twin Pipe Air Brake

Type of air brake system used. Essential for correct procedure of brake system.

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BPC Validity Period

Length of time the Brake Power Certificate is valid, usually 12 days.

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Yard Maintenance

Routine upkeep and operational management of railway yards.

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Premium Rake

A high-quality train with enhanced brake power, allowing multiple loading/unloading cycles over a set period.

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Brake Power Certificate (BPC)

A document verifying a train's brake system's ability to operate within standards; is valid for a time-period.

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Premium Rake Examination

A thorough inspection of a premium train's brake system to ensure it meets specific requirements.

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BPC Validity Period

The duration for which a Brake Power Certificate remains valid; 12 days for premium rakes.

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GDR Checks

Checks performed by the Guard and Driver after loading and unloading to record and ensure safety and readiness during railway train operations.

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Yard Maintenance

Routine upkeep and operational management of railway yards, including infrastructure, for maintaining safety and proper functionality.

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Close Circuit Rake Examination

An examination of the train's brake system for ensuring efficiency and quality at specific points in the rakes' journey.

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Post-tippling check

A check performed after a train is tippled to ensure there are no defects or damages.

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TXR staff

Special staff responsible for examining trains at specific locations, usually dedicated.

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GDR check

A check by Guard and Driver after loading/unloading to ensure train brakes and operational readiness.

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BPC (Brake Power Certificate)

A document verifying the train's brake system ability to function.

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Continuity of Brake Pipe Pressure

Ensuring unbroken air pressure throughout the train during wagon attachment, detachment, or power reversals.

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CBC Couplings

Couplings between carriages ensuring a connected train brake system

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Air Hose Pipes

Pipes conveying air to operate train brakes throughout the train

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Rolling-in Examination

Inspection of trains entering a station or yard, focusing on undercarriage components, axle box temperatures, and any abnormal behavior.

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Sick Wagon

A wagon with a significantly high axle box temperature (over 90°C) during rolling-in inspection. It requires immediate attention and potential repair.

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Brake Power Certificate (BPC)

A document confirming a train's brake system's capability, necessary for safe operation.

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Freight Train Examination

A comprehensive inspection of a freight train that checks running gear, brake systems, and safety components.

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Intensive Examination

A detailed inspection of originating trains, including repairs, wagon detachment, and brake testing; this is more than a 'rolling-in' check.

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Yard Maintenance

Routine upkeep and operation of railway yards, including infrastructure and safety.

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Incoming BPC Collection

Collection of Brake Power Certificates from incoming trains by the train staff for record-keeping and validation.

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Rolling-in Inspection

Inspection of a train as it enters the station or yard, checking for issues while in motion and after halting.

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Undercarriage Inspection

Examination of the undercarriage of wagons for any loose components or damage, during rolling-in examination.

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Axle Box Temperature

Measurement of axle box temperature to identify any wagons running at high temperatures, flagged as "sick" wagons, by using contactless thermometers.

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Brake Pipe Pressure Drop

The acceptable rate at which brake pipe pressure decreases per minute.

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Leakage Check

A procedure for locating and addressing leaks in the air brake system by checking for hissing sounds and applying soap water.

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Leakage Repair Material

A permitted material, like Teflon tape, to fix threaded leaks.

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Heavy Leakage Action

If a leak is severe and cannot be fixed temporarily, isolate/detach the wagon.

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Temporary Leakage Repair

Fixing a leak for primary depot attention by using tape to temporarily fix the leakage.

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Distributor Valve Isolation

To isolate a leaking distributor valve, close the isolating cock to prevent further leakage.

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Angle Cock Usage

Angle cocks are for shunting only; do not use for wagon isolation or other purposes except during shunting without blocking brake pipe continutity.

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Rake Test

A method for testing the air brake system of an entire train (rake) with a special mobile testing rig.

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Rake Test Rig

A portable device for testing air brakes in an entire train (rake), having an air supply and a mobile rig with wheels.

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Visual Rake Examination

Visual inspection of the entire train (rake) to check for any damage or issues.

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BPC Validity

Brake Power Certificate (BPC) validity period based on train changes (over 4 wagons), stable time (24 hours or more).

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Loco Pilot Responsibilities

Loco pilots must confirm destination on the BPC before moving loaded trains and ensure BPC validity after each loading/unloading stop.

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GDR Checks

Checks performed on a train by Guard and Loco Pilot after loading/unloading; verifies the system's workings.

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Continuity of Air Pressure

Ensuring smooth air pressure flow from the locomotive to all train cars.

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BPC Handoff

Incoming loco pilot receives BPC from outgoing pilot; outgoing pilot deposits BPC if not relieved. It's verified.

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Study Notes

Yard Maintenance

  • Yard maintenance is crucial for efficient freight stock operation
  • Factors affecting good and quality examinations/repairs include yard maintenance standards
  • Examination methods are described in subsequent paragraphs

Notification of Examination Points

  • Railways notify nodal examination points authorized to issue brake power certificates
  • These nodal points must have facilities such as paved pathways, welding points, lighting, etc., for air brake train examination
  • Brake Power Certificates (BPC) are issued only from these nodal points

Pattern of Freight Train Examination

  • End-to-End Examination:

    • Empty rakes are typically examined intensely, except during back loading at stations or sidings
    • After intensive examination, the rake is moved to the loading station as per traffic requirements
    • Empty rake's BPC might not have a destination, but after loading, operating staff (or commercial staff) indicate the destination on the BPC
    • No loco pilot can move a loaded train without a clear destination on the BPC
    • After unloading, the rake is re-examined in empty condition

  • Premium Examination:

    • Premium rakes have a 12-day validity BPC with a 3-day grace period for examination in empty condition
    • Specific conditions are needed to be met for the rake to be certified as premium. This includes examination in an empty condition and examination at nominated examination points.
    • BPCs for premium rakes are valid for 12 days from the date of issue
    • For these rakes multiple loading/unloading are allowed

  • Close Circuit Examination:

    • Ideally, close circuit air brake rakes should be formed from off-ROH and off-POH wagons
    • Thorough maintenance history (bogie, draft gear, coupler, AB system, wheel, & CTRB) is maintained by the Base Depot
    • Originating brake power for air braked goods trains should be 100% with sufficient brake block thickness
    • Base depot should record details regarding enroute detachments, brake power and detachments during examination
    • Each BPC of a CC rake is valid for 6000/7500 kms or 30 days (whichever is earlier)
    • The kilometrage must be accurately recorded

Post Loading and Post Tipping Examination

  • After tippling, the rake is checked by TXR staff or Guard and Loco pilot (if TXR staff isn't available)

  • Post-tippling inspections vary based on local conditions

  • Guard and driver checks should be done based on established formats

GDR Check

  • A GDR check is necessary for post loading/back loading of a rake
  • After tippling, a post-tippling check may be performed by Guard & Loco pilot

Examination Details

  • Rolling-in/Terminating examination is conducted on trains entering the yard
  • Intensive examination includes repairs, detachment of damaged wagons, and brake testing, done on originating trains
  • Brake continuity of the formed load is confirmed

Freight Train Examination and Repairs

  • Inspect running gear fittings, brake gear and spring gears, draw and buffing gear.

  • Repair any deficiencies in safety fittings, brackets, and loops

  • Replace worn brake blocks

  • Correct fitment of washers, cotters, and pins

  • Ensuring correct functioning of empty load devices

  • Inspection of covered wagon doors.

Air Brake Testing

  • Testing of single pipe and twin pipe air brake rakes are performed using dedicated test rigs.
  • Important considerations include establishing stable pressure, monitoring pressure drop, checking for leaks, and inspecting components like distributor valves, cylinders
  • Important parameters like pressure drop is carefully monitored.

Service Application and Release Test

  • The driver's automatic brake valve is moved toward service application
  • Brake blocks are checked for proper application.
  • Piston strokes of each wagon are checked

Examination of Container Trains (BLC/BLL Rakes)

  • Examination points are developed, including infrastructural facilities
  • BLC/BLL rakes are examined in empty condition (without containers)
  • Every Close Circuit (CC) rake must be thoroughly examined at its base depot, and a fresh BPC issued, valid for 6000 km or 30 days (whichever comes first)
  • On completion of the stipulated distance/time, CC rakes must be returned to the base depot

BPC Formats

  • Format I is for end-to-end examined goods rakes

  • Format II is for premium rakes

  • Format III is for close-circuit rakes

  • Information like train number, loco number, brake power, and pressure values is recorded in each format

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Description

Test your knowledge on air brake maintenance and safety protocols for loco pilots. This quiz covers essential procedures such as the Brake Power Certificate, visual inspections, and rake testing. Ensure you're familiar with what is required before moving loaded trains.

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