LHB Maintenance Manual Quiz

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Questions and Answers

What is the frequency of cleaning brake discs on a LHB coach?

  • Only during brake testing (correct)
  • Monthly
  • Every Trip/Weekly
  • Half Yearly

What is the name of the organization responsible for creating the LHB Maintenance Manual?

  • GWL
  • MC
  • RDSO
  • IRCAMTECH (correct)
  • LHB

What is the version of the LHB Maintenance Manual that is being corrected in this document?

  • 3.0
  • 2.2
  • 2.0
  • 1.0
  • 1.1 (correct)

What is the date the document was created?

<p>10.06.2024 (C)</p> Signup and view all the answers

Which of the following is NOT a maintenance schedule listed in the document?

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

Which of the following is a component of the Air Brake & Brake Equipment?

<p>Brake Disc (D)</p> Signup and view all the answers

Where should the 'Half Yearly' maintenance on brake discs be performed?

<p>At the primary depot (C)</p> Signup and view all the answers

What is the RDSO letter number referenced in the attachment?

<p>Not available in the content (D)</p> Signup and view all the answers

Which of the following documents is NOT referenced in the given email regarding the 6th Correction Slip of the LHB Maintenance Manual?

<p>IRCAMTECH/M/GWL/MECH/2022-23/LHB/Manual/1.1 July 22 (B)</p> Signup and view all the answers

Based on the information provided, what is the primary purpose of the 6th Correction Slip to the LHB Maintenance Manual?

<p>To incorporate all recent instructions and updates from Railway Board and RDSO into the LHB Maintenance Manual. (C)</p> Signup and view all the answers

Who is responsible for approving the 6th Correction Slip of the LHB Maintenance Manual?

<p>The Principal Executive Director/Camtech (D)</p> Signup and view all the answers

According to the email, what is the date on which the 6th Correction Slip was prepared?

<p>07.10.2024 (A)</p> Signup and view all the answers

What is the version number of the LHB Maintenance Manual referenced in the email?

<p>1.1 (B)</p> Signup and view all the answers

What is the maximum allowable pressure difference between the brake pipe (BP) and the feed pipe (FP) in the rear end power car?

<p>2.4 Kg/cm2 (C)</p> Signup and view all the answers

What is the maximum time allowed for the brake pipe (BP) pressure to drop to 0 Kg/cm2 in the front Power Car when the Guard's emergency valve is operated from the rear Power Car?

<p>40-50 seconds (A)</p> Signup and view all the answers

Which of the following tests involves checking the functionality of the brake release through the bogie isolation cocks?

<p>Bogie Isolation test (A)</p> Signup and view all the answers

What is the expected pressure reading in the brake pipe (BP) of the front Power Car after holding it at 5.0 Kg/Cm2 for 3 minutes?

<p>5.0 Kg/cm2 (D)</p> Signup and view all the answers

Which test requires checking both the condition and mounting of the hand brake cables?

<p>Check Hand Brake of both Power Car/LSLRD (D)</p> Signup and view all the answers

Which of these items is inspected every trip/weekly according to the revised instruction?

<p>Wheel profile/tyre defect (C)</p> Signup and view all the answers

For which item is the frequency of examination changed from monthly to every trip/weekly in the revised instruction?

<p>Wheel &amp; Axle (A)</p> Signup and view all the answers

Which maintenance activity is added to the half yearly schedule in the revised instruction?

<p>Brake Disc cleaning (A)</p> Signup and view all the answers

How often should the cleaning of brake disc be done according to the revised instruction?

<p>Half Yearly (A)</p> Signup and view all the answers

Where are the wheel & axle inspections conducted according to the revised instruction ?

<p>At the nominated primary depot (A)</p> Signup and view all the answers

From which document has the revised instruction for the cleaning of brake discs been taken?

<p>RDSO letter No. 2022/07/2022 (C)</p> Signup and view all the answers

What is the purpose of Annexure 10.5 of the LHB Maintenance Manual?

<p>To standardize maintenance practices for LHB coaches (D)</p> Signup and view all the answers

According to the existing instructions, how often were wheel & axle inspections conducted?

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

What is the minimum pressure required for the BP and FP to be considered 'charged' during the Self Release Check?

<p>5.0 Kg/Cm2 &amp; 6.0 Kg/Cm2 (B)</p> Signup and view all the answers

What is the purpose of draining the auxiliary reservoirs and strainers during the Rake Test?

<p>To remove any accumulated debris or contaminants that may hinder the proper functioning of the brakes. (D)</p> Signup and view all the answers

During the NRV check, what observation should be made when charging the BP line?

<p>The FP Gauge should show a steady pressure reading with no change. (D)</p> Signup and view all the answers

What is the maximum permissible leakage rate for BP and FP during the leakage check?

<p>0.6 Kg/Cm2 in 3 minutes (A)</p> Signup and view all the answers

In the Self Release Check, what is the purpose of disconnecting the RTR BP/FP palms?

<p>To allow the brake system to vent pressure and release the brakes. (C)</p> Signup and view all the answers

When checking for leakage on an empty AR tank, where should the technician focus their attention?

<p>The back of the brake panel. (A)</p> Signup and view all the answers

Which of these is NOT a step involved in the Self Release Check of LHB brakes?

<p>Testing the brake system's response to an emergency brake application. (D)</p> Signup and view all the answers

What is the primary purpose of connecting a dummy to the free end of the last vehicle during the accuracy check of BP/FP gauges?

<p>To allow for the accurate reading of the BP/FP pressure gauges. (C)</p> Signup and view all the answers

Flashcards

LHB Maintenance Manual

A manual detailing maintenance procedures for LHB coaches, version 1.1, July 2022.

6th Correction Slip

An update document to the LHB Maintenance Manual to include recent changes and instructions.

Railway Board

The governing body that oversees railway operations and maintenance instructions.

Brake Disc Cleaning

A specific procedure outlined in the manual for maintaining brake efficiency in LHB coaches.

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Wheel Profile Gauge

A tool mandated for checking the wheel profile and flange thickness during D1 schedule checks.

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Frequency of Examination

The regular intervals at which maintenance checks are performed.

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Maintenance Schedule

A documented plan detailing maintenance tasks and their frequency.

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Wheel and Axle Check

Inspection of wheels and axles for defects or profile issues.

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Maintenance Primary Depot

The main location where maintenance activities are conducted.

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Brake Disc Cleaning Instruction

Requirement to regularly clean the brake disc during maintenance.

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Revised Instruction

Updated guidelines that modify existing maintenance protocols.

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Half Yearly Schedule

Maintenance tasks to be done every six months.

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Old SN Reference

Refers to the previous serial number of an instruction or guideline.

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Brake Disc Maintenance

Cleaning procedure required for brake discs during maintenance.

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Trip/Weekly Check

Examination frequency of brake equipment every 30±3 days.

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Air Brake Rake Testing Rig

Equipment used for testing the air brake system of LHB coaches.

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Primary Depot

Main location where brake maintenance is conducted for LHB coaches.

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Half Yearly Check

Maintenance evaluation of brake equipment done every 6 months.

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Nominated Rake

Specific train set assigned for maintenance checks.

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Addition Instruction

New guidelines added to the existing maintenance manual.

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SCTR Test

Test for detecting leakage at 1.6 Kg/Cm2 pressure in BP.

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Bogie Isolation Test

Functional test to release brakes via bogie isolation cocks.

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Brake Indicator Test

Indicator showing red on brake application, green on release.

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Continuity Test

Check for pressure drop in response to guard emergency valve activation.

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Hand Brake Check

Inspect condition and mounting of hand brake cables and monitor leakage after pressure tests.

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Rake Test

Assessment to check the performance and safety of train brakes.

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Auxiliary Reservoirs

Storage tanks for braking system fluid, crucial for pressure management.

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BP Strainer

A filter that prevents contaminants from entering the braking system's main pipeline.

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Self Release Check

Procedure to ensure brakes release correctly under specified pressures.

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Leakage Check

Inspection to identify and quantify any leaks in the brake system.

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Angle Cocks

Valves used to control the flow of air in the braking system.

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Master Gauges

Devices to accurately measure brake system pressure during testing.

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Charging Pressure

The process of filling the brake system with air to prepare for braking.

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Study Notes

LHB Maintenance Manual Version 1.1 July 2022

  • Sixth correction slip of LHB Maintenance Manual version 1.1, July 2022, Volume II, is enclosed.
  • Railway Board has approved the revised manual version 1.1, July 2022, Volume II.
  • The checking of wheel profile and flange thickness is now done by wheel profile gauge in D1 Schedule.
  • RDSO issued instructions regarding brake disc cleaning, air brake rake testing format, and single car for LHB coaches.
  • This is for information and necessary action.

Revised Instructions for Wheel and Axle

  • Include wheel profile and tyre defect gauge checks.
  • Schedule D3 (Half Yearly) includes brake disc cleaning.

Air Brake and Brake Equipment

  • Cleaning of brake disc is a part of the air brake and brake equipment checks.

Air Brake Rake Testing Rig (RTR)

  • Provides a format for air brake testing of LHB train.
  • Includes tasks like draining auxiliary reservoirs, NRV checks, self-release check, leakage checks, brake indicator tests, and cross-connection checks.
  • Includes tests on power cars, coach tests, and continuity tests.

Single Car Air Brake Testing

  • Covers items like reservoir charging, pressure checks, full brake application, overcharge protection, emergency application, release, graduated brake application, anti-skid device testing, and isolation tests.
  • Includes sensitivity tests, and procedures for manual release tests.

Additional Instructions

  • Clarifies various maintenance procedures, including filler gauge checks, WSP micro processor checks, and clearance between brake disc and brake pad checks.
  • Covers double-decker coach BC maximum pressure, and brake application and release time checks.

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