120 Questions
What type of maintenance can be performed on a lever frame without physical electrical disconnection?
Lubricating and cleaning
Which of the following is NOT a duty of signal supervisors?
Scheduling of train operations
What can be replaced by technical staff in case of traffic permits?
Plug-in relay
What is the primary purpose of covering lenses in signal maintenance?
To prevent phantom indication to drivers
Which of the following is a type of maintenance that requires physical electrical disconnection?
Replacement of power supply equipment
What is the primary purpose of testing track circuit parameters?
To ensure track safety
What type of maintenance can be performed on point machines without opening covers?
Lubricating and cleaning
Which of the following is a duty of technical staff in telecommunication equipment testing?
Checking of axle counter parameters
What is the primary purpose of a Signal Supervision Engineer (SSE) possessing Signaling Interlocking Plans during an inspection?
To verify interlocking system configurations
Which of the following is NOT typically carried by an SSE during an inspection?
Station Master's daily logbook
What is the primary function of a Cable Fault Locator?
To locate cable faults
What is the purpose of an SSE possessing Interface Circuits during an inspection?
To troubleshoot signaling system faults
Which of the following is a type of equipment used for testing signaling gears?
Train shunt resistance
What is the purpose of an SSE possessing Location box details during an inspection?
To understand location box configurations
Who can specify additional items to be carried by an SSE during an inspection?
Sr. Divisional Signal and Telecommunication Engineer/ Principal Chief Signal and Telecommunication Engineer
What is the purpose of an SSE possessing Various registers at the station during an inspection?
To maintain accurate records of station activities
What is the frequency of report submission by a Technician (Signal) to their Sectional SSE/JE (Signal)?
Fortnightly
What is required for a Technician (Signal) to independently undertake works necessitating issues of Disconnection Notices?
A valid Competency Certificate
When is a Disconnection Notice not required?
When suitable precautions are taken
What should be kept in the 'ON' position and made in-operative when disconnecting point equipment switches or signals for repairs?
Warner/Distant and Stop Signals
What is the technician responsible for sealing after opening it for maintenance?
The equipment opened by him under his competence
What is a Technician (Signal) required to maintain and test?
All equipment under their charge
What is the purpose of a Technician (Signal) obtaining the signature of the Station Master?
To obtain permission to start work
What type of equipment does a Technician (Signal) need a valid Competency Certificate to handle?
Signalling equipments like Block instruments, EI, MSDAC etc.
What is the maximum time interval between inspections and testing of equipments by the Sectional SSE/JE (Signal)?
One month
Who should the Sectional SSE/JE (Signal) take with him/her during inspections whenever possible?
Technician (Signal) of the section
What is the purpose of the inspection carried out by the Sectional SSE/JE (Signal)?
To ensure equipments function satisfactorily, safely and with minimum liability to failures
What should be done to any fault detected during inspection?
It should be arranged to be rectified at the earliest
What should be inspected to ensure they are up-to-date?
Interlocking Plan, Cabin Diagrams, Working Rules etc.
Where should a record of the inspection be made?
In the Signal Failure and Inspection Book at each station
What is the purpose of taking disconnection from ASM on duty?
To rectify faults detected during inspection
What should be paid special attention to during inspections?
The work of the Technician (Signal) in respect of adjustments, cleaning and lubricating of moving parts of all points and signal equipment
How often should SSE(Signal)/Incharge submit an Inspection and Testing Certificate?
Monthly
What is the primary purpose of the Certificate of Inspection and Testing?
To keep a record of inspections and gear conditions
Who should jointly inspect signals on each section?
SSE(Signal), SSE(Loco), and Traffic supervisors
When should SSE(Signal)/Incharge certify that signals on their section have proper visibility?
Quarterly
What should SSE(Signal)/Incharge highlight in their quarterly certificate?
Deficiencies, proposed actions, and required assistance
When should inspections, testing, and overhauling certificates be filled in?
Immediately after inspection, testing, or overhauling
Who should submit the report on each foot-plate inspection?
SSE(Signal)/Incharge
What is the purpose of submitting certificates to Sr.DSTE?
To keep a record of inspections and gear conditions
What documents should an SSE(Signal) possess in addition to the books mentioned in para 3.5.2(a) during an inspection?
All of the above
What is the purpose of an SSE(Signal) possessing Traction Bonding Diagram during an inspection?
To inspect traction bonding
Which of the following equipment is not required to test signaling gears during an inspection?
Cable Fault Locator
What can specify additional items to be carried by an SSE(Signal) during an inspection?
Sr.Divisional Signal and Telecommunication Engineer
What is the purpose of an SSE(Signal) possessing Various registers at the station during an inspection?
To update registers
Why does an SSE(Signal) need to possess OEM check lists of Signalling equipments during an inspection?
To inspect signaling gears
What is the purpose of an SSE(Signal) possessing Track circuit bonding plan during an inspection?
To inspect track circuit bonding
What is the purpose of an SSE(Signal) possessing Interface Circuits during an inspection?
To inspect interface circuits
What should a Technician (Signal) do before starting maintenance at a station?
Take an exception report from the Datalogger
What should a Technician (Signal) do if he notices an unsafe failure?
Suspend the signals and inform the SM concerned
What should a Technician (Signal) ensure before restoring normal working?
That the failure has been attended to and certified by the SSE/JE (Signal)
What should a Technician (Signal) maintain according to the program laid down by his SSE/JE (Signal)?
A record of his visits
What should a Technician (Signal) obtain before leaving any gear in a disconnected condition?
Advice from the ASM, duly acknowledged by him
What should a Technician (Signal) attend to promptly?
Signalincidences
What should a Technician (Signal) deploy as and when necessary?
Men for look out duties
What should a Technician (Signal) ensure before disconnecting or altering any connection in the interlocking circuits?
Obtain the approval of the SSE/JE (Signal)
What should be briefly contained in the handing over charge statement while relinquishing charge of a section?
All of the above including overhauling and testing of interlocking frames
What is the purpose of jointly signing the handing over charge statement?
To inform the Sr.Divisional Signal and Telecommunication Engineer
What should the relieving SSE(Signal)/Incharge examine during the handing over process?
All of the above
What should be recorded in the handing over charge statement?
Only errors and discrepancies noted during handing over and taking over
What should be submitted to the Sr.Divisional Signal and Telecommunication Engineer?
A copy of the handing over charge statement
What is the purpose of the handing over charge statement?
To ensure a smooth transition of charge
What should be checked during the handing over process?
All of the above including the section particulars
What is the purpose of the relieving SSE(Signal)/Incharge initialing the office records and ledgers?
To ensure the accuracy of the records
What is the primary responsibility of a Helper in relation to testing and maintenance?
Assisting the Supervisor/Technician during testing and maintenance
What is the purpose of Annexure 3-A2?
To document the inspection of foot plates
What is the primary responsibility of a Technician (Signal) in relation to documentation?
Maintaining the Competency Certificate cum Training History book
What is the purpose of Annexure 3-A4?
To document the action taken in case of accidents
Who is responsible for accompanying the Technician/SSE/JE during their day-to-day work?
The Helper
What is the primary purpose of Annexure 3-A7?
To certify the SSE/JE's progress
What is the primary responsibility of a Technician (Signal) in relation to testing and maintenance?
Removing obstructions to points and checking RE bonds
What is the purpose of Annexure 3-A12?
To certify the Competency Certificate cum Training History
What can be caused by a flat tyre?
All of the above
What is the rejection limit in depth of flange for BG?
35 mm
What can be formed due to excessively worn-out tyres on tread?
False Flange
What may happen if the hollowness of a tyre is more?
The wheel may ride over the rails
Where can a false flange ride over, creating conditions favourable to derailment?
Wing rails
What can a deep flange tend to ride on?
All of the above
What can cause hammering action on the rail?
Flat tyre
What may take place due to a flat tyre?
Rail fractures
What should the SSE(Signal)/Incharge of works submit every month to the Dy.CSTE (Construction)?
A Progress Report of all the works in his charge
What should the SSE(Signal)/Incharge ensure before commissioning/opening of a new work or alteration to an existing work?
All the above
What should the SSE(Signal)/Incharge submit to the Sr.DSTE/Dy.CSTE (Construction) immediately after a new work/alteration has been brought into service?
A Completion Certificate
What should the SSE(Signal)/Incharge advise the Sr.DSTE/Dy.CSTE (Construction) about?
When a work will be ready for opening
What should the SSE(Signal)/Incharge correct and endorse in case of minor alterations?
Existing diagrams
Who should arrange for fixing a date and issue necessary notices when a work is ready for opening?
Sr.DSTE/Dy.CSTE (Construction)
What should the SSE(Signal)/Incharge submit to the Dy.CSTE (Construction) as per Annexure: 3-A7?
A Progress Report
When should the SSE(Signal)/Incharge submit a Completion Certificate to the Sr.DSTE/Dy.CSTE (Construction)?
Immediately after a new work/alteration has been brought into service
What does a Technician (Signal) need to submit to his Sectional SSE/JE (Signal)?
A fortnightly report of his maintenance activities
What is necessary for a Technician (Signal) to undertake works necessitating Disconnection Notices?
A Competency Certificate cum Training History book
What should Warner/Distant and Stop Signals be kept in when disconnecting point equipment switches or signals for repairs?
The 'ON' position
What must a Technician (Signal) possess to handle certain signaling equipments?
A Competency Certificate
What should a Technician (Signal) advise the Station Master about in writing?
The need to disconnect any equipment for repairs
What must be sealed by a Technician (Signal) after opening it for maintenance?
The equipment itself
What is the purpose of a Technician (Signal) obtaining the signature of the Station Master?
To obtain permission for the maintenance
What must a Technician (Signal) take before leaving his Headquartered Station?
Permission from his sectional SSE/JE (Signal)
What is the primary cause of 'Breakage of part'?
Power degradation
Which of the following is not a type of Track Circuit Failure?
Block Instrument Failure
What is the primary cause of 'Interlocking'?
Electro Mechanical Interlocking
What is the primary cause of 'Lifting Barrier'?
Mechanical
What is the primary cause of 'Miscellaneous'?
Right during testing
What is the primary cause of 'Block Instrument Failure'?
Block Panel
What is the primary cause of 'TCAS'?
Line side
What is the primary cause of 'Staff working'?
Staff working
What should a Technician (Signal) obtain from the SSE/JE (Signal) when necessary for maintenance and repair work?
Full particulars of station, location and gears to be replaced
What should a Technician (Signal) always take with him when on duty?
His tools
What is the duty of Helpers/Assistants in terms of cleaning?
All of the above
What should a Technician (Signal) report to his supervisor?
Any infringement of signal/Ladder etc.
What should a Technician (Signal) do with released materials?
Return them to the SSE/JE (Signal) immediately
What should Helpers/Assistants maintain with them for day-to-day work?
Minimum essential tools
What is the duty of Helpers/Assistants in terms of loading/unloading of materials?
Load/unload T&P items and all materials as per instructions of Supervisor
What should Helpers/Assistants report to their supervisor?
Any rubbing of stretcher bar with Stock Rail bottom
What is the primary purpose of Cause Wise Analysis of Signal Incidences?
To identify the cause of signal failures
Which of the following is a type of equipment failure that can cause signal incidents?
All of the above
What is the primary cause of signal incidents related to S&T Account (A)?
Equipment failure
Which of the following is a type of maintenance that can help prevent signal incidents?
Regular testing of signal equipment
What is the primary purpose of identifying the position of signal incidents?
To identify the location of the incident
Which of the following is a type of signal incident that can be caused by bad maintenance?
All of the above
What is the primary purpose of analyzing the cumulative frequency of signal incidents?
To identify trends and patterns in signal incidents
Which of the following is a type of equipment that can be used to test signal circuits?
Cable Fault Locator
Study Notes
Maintenance and Inspection
- Cleaning and lubricating without affecting physical electrical disconnection:
- Lever frame basement
- Relay Room & Battery Room
- Apparatus case/battery boxes/Goomty
- Lifting barrier mechanism including winch
- Lever lock and circuit controller without opening cover
- Inspection and cleaning of inside equipment by opening covers of point machines, signal motors, reversers, apparatus cases, and detectors
- Point, facing point lock, and lock bar
- Cranks, compensators, pullies, wheels, roller stands, counterweights, and levers
- Power supply equipment
- Insulation joints
- Lens/roundels of signal, point indicator, trap indicator, and shunt permitting indicator
Testing
- Testing of:
- Track locking, approach locking, back locking, indication locking, and route release
- Various parameters of axle counter without disconnecting equipment
- Power supply equipment
- Lever frame, SM's control frame, signal operation, point operation, level crossing gate, and slot circuits
- Point by obstruction test for lock only
- Track circuit parameters when the track is unoccupied
- Focusing of color light signal
Adjustment
- Adjustment of:
- Wire transmission (except double wire operated point transmission)
- Tightening of terminals using insulated tools without causing shorts on adjacent terminals
Replacement
- Replacement of:
- Electric signal lamp
- Bond wire (one at a time)
- Plug-in relay (if traffic conditions permit)
- Indicator lamps
- Push button/switch/key of panel
Duties of Technicians and Signal Supervisors
- Each Technician (Signal) shall:
- Maintain and test equipment under their charge as per maintenance schedule
- Submit fortnightly report of maintenance activities to Sectional SSE/JE (Signal)
- Possess a book of Disconnection Notices
- Possess a valid Competency Certificate for handling Signaling equipments
- Seal equipment opened by them under their competence
Inspection and Testing Certificates
- Each SSE(Signal)/Incharge shall submit an Inspection and Testing Certificate monthly for each station/installation inspected
- The Certificate shall indicate the condition of gear inspected and brief remarks on assistance required
Accompanying Important Inspections
- Each SSE(Signal) accompanying an inspection must have certain items in their possession, including signaling interlocking plans, yard diagrams, and cable route plans.
- They must also have interface circuits, application logic circuits, and track circuit bonding plans.
- Other required items include location box details, wire diagrams, and OEM checklists for signaling equipment.
- The SSE(Signal) must also have various registers, such as an asset register, battery checking register, and signal incidence register.
Inspections and Testing
- The SSE(Signal) is responsible for inspecting and testing signaling equipment, including interlocking frames, block instruments, and point machines.
- They must also inspect and test relays, and perform general notes regarding painting, renewals, and replacements.
Relinquishment of Charge
- When relinquishing charge of a section, the SSE(Signal) must prepare a handing-over charge statement that includes section particulars, details of sanctioned and proposed works, and general notes.
- The statement must also include information about materials, stores, and important documents, as well as the status of scheduled inspections and officer inspections.
Duties of Signal Supervisors and Technical Staff
- The SSE(Signal) is responsible for maintaining a record of visit reports, and must adhere to the program laid down by their supervisor.
- The Technician(Signal) must attend to signal failures promptly, and ensure that normal working is not restored until the failure has been attended to, tested, and certified by the SSE(JE).
- The Technician(Signal) is also responsible for assisting the supervisor during testing, maintenance, and inspections, and for carrying tools and plants for maintenance and failures.
Helper's Duties
- The Helper's technical duties include removing obstructions to points, removing excess bars from insulation joints, and checking RE bonds and their intactness.
- The Helper must also check for water logging in track-circuited areas, and assist the technician during testing, maintenance, and inspections.
Annexures
- There are 13 annexures to this chapter, including a signal visibility certificate, footplate inspection of signals, and an SSE(JE)'s progress report.
- Other annexures include a list of drawings and registers at a station, a cause-wise analysis of signal incidents, and a technician's report.
Progress Report of Works
- The SSE(Signal)/Incharge of works shall submit a Progress Report every month to the Dy.CSTE (Construction) as per Annexure: 3-A7.
- The report shall include:
- Progress of work and probable date of completion
- Reference to requisitions or work orders against which supply has not been made; also details of items which are particularly required and on account of which works are being delayed
- Delays arising from other causes
Opening of Works
- The SSE(Signal)/Incharge of works shall advise the Sr.DSTE/Dy.CSTE (Construction) when a work will be ready for opening.
- The approved plans, Control Table, circuit diagrams, CRS/PCSTE sanctions, required approvals, OEM test certificates of equipments, FAT/SAT Testing reports etc. shall be available before commissioning /opening.
Completion Certificate and Completion Report
- The SSE(Signal)/Incharge shall submit a Completion Certificate to the Sr.DSTE/Dy.CSTE (Construction) as per Annexure: 3-A8 immediately after a new work/alteration to an existing installation has been brought into service.
- Each Technician(Signal) shall maintain and test all the equipments under his charge, as per maintenance schedule specified for various gears.
- Each Technician(Signal) shall submit a fortnightly report of his maintenance activities to his Sectional SSE/JE (Signal).
Disconnection of Equipment
- Each Technician(Signal) shall have in his possession a book of Disconnection Notices as per Annexure: 3-A10.
- A Technician (Signal) who is in possession of a Competency Certificate cum Training History book (Annexure: 3-A12) only shall independently undertake works necessitating issues of Disconnection Notices.
- Disconnection Notices need not be issued in situations as listed in Annexure: 3-A11 provided suitable precautions are taken.
Duties of Technician (Signal)
- A Technician (Signal) shall possess valid Competency Certificate for handling Signalling equipments like Block instruments, EI, MSDAC etc.
- A Technician (Signal) shall, where necessary, get his requirements of materials for maintenance and repair work from the SSE/JE (Signal), giving full particulars of station, location and the gears to be replaced.
- Released materials shall be returned to the SSE/JE(Signal) immediately.
- A Technician (Signal) shall always take his tools with him when on duty.
- All tools shall be kept in a condition fit for immediate use.
Co-operation between Technicians
- Technician (Signal) shall co-operate in testing of all the signals.
- Technician (Signal) shall extend full co-operation to each other in their day-to-day work.
Duties of Helpers/Assistants
- The general duties of Helpers/Assistants are as follows:
- Cleaning of Glued Joints/Block joints
- Cleaning of all S&T gears and their up keeping
- Painting of all S&T gears and their up keeping
- Cleaning of garbage/vegetation under Point rodding and surrounding of all signaling gears/locations
- Cleaning of chair plates and maintaining their lubrication
- Reporting of any infringement of signal/Ladder etc.
- Upkeep of Relay room, Power room, Battery room, Maintenance room, Store room etc.
- Maintaining minimum essential tools with him for day to day works as per instructions of Technician/SSE/JE(Signal)
- Loading/unloading/Handling of T&P items and all materials as per instructions of Supervisor
- Manning and protection of installations/S&T gears on need basis as guided by Supervisor
- Reporting of rubbing of stretcher bar with Stock Rail bottom (if any)
Cause Wise Analysis of Signal Incidences
- The analysis includes causes such as:
- S&T Account (A) including equipment failure, lamp fusing, cable, relay failure, point M/c, fuse blown off, bad maintenance, track circuit failure, block instrument failure, interlocking, lifting barrier, miscellaneous, and TCAS (Train Collision Avoidance System)
This quiz covers the procedures for cleaning and lubricating railway equipment without disconnecting electrical systems, including maintenance of lever frames, relay rooms, and point machines.
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