Civil Engineering: Estimates and Surveys
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Questions and Answers

What is the topic of Annexure 5-A1?

  • Preparation of the Preliminary Works Programme (correct)
  • Code Rules for Estimates
  • Grouping of Works
  • Test of Remunerativeness

    • What is the focus of Section 3 of Chapter 6?

  • Protective Clothing
  • Surveys
  • Tools and Plants
  • Imprest Stores (correct)

    • What is the purpose of Annexure 6-A2?

  • Guidelines for Preparation of Indents
  • Daily Material Transaction Register (DMTR)
  • Materials At-Site Account
  • Tools and Plant (correct)

    • What is the topic of Section 5 of Chapter 6?

    <p>Books of Reference</p> Signup and view all the answers

    What is the purpose of Annexure 6-A4?

    <p>Materials At-Site Account</p> Signup and view all the answers

    What is the topic of Section 2 of Chapter 6?

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

    What is the purpose of Annexure 5-A3?

    <p>Code Rules for Estimates</p> Signup and view all the answers

    What is the topic of Annexure 6-A5?

    <p>Daily Material Transaction Register (DMTR)</p> Signup and view all the answers

    What is the responsibility of SSE(Signal)/Incharge in regard to tools and plant?

    <p>To issue proper tools and other equipment to Technicians (Signal) and ensure they are in proper working order.</p> Signup and view all the answers

    What should SSE(Signal)/Incharge, Sectional SSE/JE(Signal) and Technicians(Signal) do to ensure safety of staff and equipment?

    <p>Use safety appliances provided and adhere to Zonal/Divisional Disaster Management Plan.</p> Signup and view all the answers

    What should be done with unserviceable and defective tools?

    <p>Replace them.</p> Signup and view all the answers

    What should each SSE(Signal)/Incharge, Sectional SSE/JE(Signal) have in their possession while on duty?

    <p>A copy of the General and Subsidiary Rules.</p> Signup and view all the answers

    Where can the procedures to be followed in regard to accidents be found?

    <p>In Chapter VI of General Rules and in the Accident Manual.</p> Signup and view all the answers

    Why should SSE(Signal)/Incharge, Sectional SSE/JE(Signal) and Technicians(Signal) take all precautions to ensure safety of staff and equipment?

    <p>To prevent accidents to the staff and damage to equipment.</p> Signup and view all the answers

    What should be done in regard to accidents?

    <p>Report them promptly.</p> Signup and view all the answers

    Which of the following is an extra Divisional Organisation of the Signal and Telecommunication Department on the Railways?

    <p>Signal and Telecommunication Workshops</p> Signup and view all the answers

    What should SSE(Signal)/Incharge ensure?

    <p>That all staff working on the line are vigilant and employ look-out men where necessary.</p> Signup and view all the answers

    Who is responsible for the efficient functioning of the extra Divisional Organisations?

    <p>Officer of appropriate grade</p> Signup and view all the answers

    What determines the strength of officers in the Headquarters Office of Principal Chief Signal and Telecommunication Engineer?

    <p>Extant guidelines of Railway Board</p> Signup and view all the answers

    What are the designations of S&T officers and staff dependent on?

    <p>Nature of duty</p> Signup and view all the answers

    Which of the following is not an extra Divisional Organisation of the Signal and Telecommunication Department on the Railways?

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

    Who is the controlling officer of the extra Divisional Organisations responsible to?

    <p>Principal Chief Signal and Telecommunication Engineer</p> Signup and view all the answers

    What is the role of the team of officers in various grades?

    <p>To assist the controlling officer</p> Signup and view all the answers

    Which of the following is a typical designation of S&T officers and staff?

    <p>Not specified in the content</p> Signup and view all the answers

    What is the responsibility of the Sectional SSE/JE(Signal) regarding failures on his section?

    <p>To monitor daily all failures and ensure repairs are carried out to prevent similar faults.</p> Signup and view all the answers

    What is the purpose of the 'Cause wise Analysis Of Signal Incidences' report?

    <p>To analyze the cause of signal failures on a monthly basis.</p> Signup and view all the answers

    Who is responsible for monitoring Datalogger exception reports?

    <p>Sectional SSE/JE(Signal)</p> Signup and view all the answers

    What is the responsibility of the Sectional SSE/JE(Signal) regarding rules and technical work?

    <p>To be fully conversant with the rules and regulations, instructions, procedures and practices.</p> Signup and view all the answers

    What is the purpose of the daily inspection by the Sectional SSE/JE(Signal)?

    <p>To check the cause of failures and the repairs carried out.</p> Signup and view all the answers

    What is the purpose of the Signal Engineering Manuals mentioned in Section 3.5.2?

    <p>To serve as a reference for Signal Engineers and Technical Staff</p> Signup and view all the answers

    What is the expected level of familiarity with the rules and regulations for the SSE(Signal)/incharge?

    <p>Well acquainted with all the rules and regulations</p> Signup and view all the answers

    What is the responsibility of the Sectional SSE/JE(Signal) regarding new installations?

    <p>To be competent to carry out new installations under open line working conditions.</p> Signup and view all the answers

    What should the SSE(Signal)/incharge ensure for the staff under their charge?

    <p>That they are well acquainted with the rules and regulations applicable to them</p> Signup and view all the answers

    What should the Sectional SSE/JE(Signal) do with failures pertaining to other departments?

    <p>Promptly bring them to the notice of the concerned departments.</p> Signup and view all the answers

    What is the condition of all Warning Boards and other boards maintained by the Signal department?

    <p>They are all in good condition.</p> Signup and view all the answers

    What is the purpose of the list of publications mentioned in Section 3.5.2?

    <p>To serve as a reference for Signal Engineers and Technical Staff</p> Signup and view all the answers

    What is included in the list of items the SSE(Signal) should have when accompanying an important inspection?

    <p>The list of items mentioned in Section 3.5.3(a)</p> Signup and view all the answers

    What is the purpose of the Cable Route Plans mentioned in Section 3.5.3?

    <p>To serve as a reference for the SSE(Signal) during inspections</p> Signup and view all the answers

    What should the SSE(Signal)/incharge ensure is kept updated with all the addenda and corrigenda slips issued from time to time?

    <p>The publications mentioned in Section 3.5.2</p> Signup and view all the answers

    What is the purpose of the Track Circuit Bonding Plan mentioned in Section 3.5.3?

    <p>To serve as a reference for the SSE(Signal) during inspections</p> Signup and view all the answers

    What is the primary consideration while laying telecom lines in railway departments?

    <p>Providing spare capacity for future extensions</p> Signup and view all the answers

    What type of cable is used for control circuits and block interfaces?

    <p>Quad Cable 0.9 or 1.4 mm conductor dia</p> Signup and view all the answers

    What is the nominal diameter of the conductor used in Twisted Pair Switch Board Cable?

    <p>0.5 mm or 0.63 mm or 0.9 mm</p> Signup and view all the answers

    What is the purpose of providing spare capacity in telecom lines?

    <p>To cater for any future extensions or extra connections</p> Signup and view all the answers

    What type of insulation is used in Quad Cable?

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

    What is the nominal diameter of the conductor used in Quad Cable for longer block sections?

    <p>1.4 mm</p> Signup and view all the answers

    What is the minimum distance for which 0.63 mm cond. Dia. twisted Pair PIJF cable is used?

    <p>Up to 10 km</p> Signup and view all the answers

    What type of cable is recommended for outdoor underground laying?

    <p>Armored polythene insulated polythene sheathed jelly filled cable</p> Signup and view all the answers

    What is the size of the conductor used for local subscriber's connections in a building?

    <p>0.5 mm Annealed Tinned Copper (ATC)</p> Signup and view all the answers

    What is the specification of a typical telephone exchange cable?

    <p>50 pair, 0.63 mm cond. dia armoured polythene insulated polythene sheathed jelly filled cable</p> Signup and view all the answers

    What type of insulation is used for indoor cables?

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

    Why should RE cable containing paper as well as polythene insulated copper quads be replaced?

    <p>Because it is to be planned to replace at the earliest</p> Signup and view all the answers

    What should be inspected before laying the cable?

    <p>All of the above</p> Signup and view all the answers

    Why is it important to minimize electro-static and electro-magnetic induction in telephone cables?

    <p>To ensure clear communication between different pairs of conductors</p> Signup and view all the answers

    What should be done with the cable drum when laying out the cable?

    <p>It should be mounted on a cable-wheel</p> Signup and view all the answers

    What should be present while excavating earth for trenches or making other pits?

    <p>A representative of the Permanent Way Inspector</p> Signup and view all the answers

    What is the purpose of twisting pairs of conductors in telephone cables?

    <p>To minimize electro-static and electro-magnetic induction</p> Signup and view all the answers

    In 'Quad' type of cables, what forms one circuit?

    <p>Conductors diagonally opposite</p> Signup and view all the answers

    What should be used to terminate PIJF cables of various sizes?

    <p>DP Box of approved type</p> Signup and view all the answers

    What should be used to joint armoured PIJF cables?

    <p>Thermo shrinkable jointing material</p> Signup and view all the answers

    Who should carry out jointing of PIJF cables?

    <p>Skilled and experienced person</p> Signup and view all the answers

    What should be submitted to the concerned Railway officials to ensure quality of laying and jointing of cables?

    <p>DVD or other suitable form</p> Signup and view all the answers

    Where should telecom cables be laid in busy areas?

    <p>In DWC pipes or any other approved protection arrangement</p> Signup and view all the answers

    What should be used for jointing quad cables?

    <p>Reinforced Thermo Shrink Jelly Filled kit</p> Signup and view all the answers

    Who should supervise the cable laying and jointing work?

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

    Study Notes

    Organisational Structure

    • Extra Divisional Organisations of the Signal and Telecommunication Department on the Railways include:
      • Signal and Telecommunication Workshops
      • Signal and Telecommunication Training School/Centre
      • Field Units of Construction Organisation including Project/Works/CORE
      • Any other unit designated by the Railway
    • Each of these Organisations is under the control of an officer of appropriate grade responsible for its efficient functioning

    Officers

    • Strength of officers in the Headquarters Office of Principal Chief Signal and Telecommunication Engineer, Chief Signal and Telecommunication Engineer (Construction), Divisional offices and in extra divisional organisations is generally in accordance with extant guidelines of Railway Board
    • Officer's designations and abbreviations are provided for various posts of S&T officers and staff

    Attending to Failures/Incidences

    • The Sectional SSE/JE (Signal) shall monitor daily all failures on his section and investigate serious failures
    • Each Sectional SSE/JE (Signal) shall summarise the failure reports received from each Technician (Signal) and submit monthly 'Cause wise Analysis Of Signal Incidences' to the Sr. Divisional Signal and Telecommunication Engineer

    Competency in Rules and Technical Work

    • Sectional SSE/JE (Signal) shall be fully conversant with rules and regulations, instructions, procedures, and practices of installation, operation, and maintenance of all installations under their charge
    • They shall be competent to carry out under open line working conditions additions and alterations to existing installations and circuits, as well as new installations

    Accidents

    • SSE (Signal)/Incharge, Sectional SSE/JE (Signal), and Technicians (Signal) are responsible for supervision of labour and shall take all precautions to ensure safety of staff and equipment
    • They shall observe instructions contained in Zonal/Divisional Disaster Management Plan and use safety appliances provided

    General Responsibilities and Duties

    • Each SSE (Signal)/Incharge shall be responsible for the issue of proper tools and other equipment to Technicians (Signal) and artisans under them and for ensuring that these are kept in proper working order
    • They shall have in their possession an latest copy of various books of reference, including General and Subsidiary Rules, Signal Engineering Manuals, and others
    • They shall be well acquainted with all the rules concerned and ensure that all staff under their charge are well acquainted with these rules and regulations to the extent applicable to them

    Line Plant Systems – Underground Copper Cable

    System

    • Railway departmental telecommunication lines are laid underground between railway offices, colonies, workshops, station yards, and block sections alongside the track.
    • Spare capacity should be kept in mind for future extensions or extra connections without major alterations to the existing circuits or reconstruction of the entire alignment.

    Line Plant (Underground Copper Cables)

    Types & Performance Parameters

    • Quad cables (0.9 or 1.4 mm conductor dia) are used for control circuits and block interfaces.
    • Multi-pair cables (from 10 pairs to 200) with 0.5 mm/0.63 mm/0.9 mm conductor dia are used for exchange subscriber lines or branch cables.
    • Twisted Pair Switch Board Cables (0.5 mm / 0.6 mm copper conductor dia) are used for indoor applications such as distribution to telephone subscribers in a building.

    Sizes of Cables

    • Outdoor underground cables: 0.5 mm cond. dia. twisted pair PIJF for subscriber connections up to 5 km, and 0.63 mm cond. dia. twisted pair PIJF for connections up to 10 km.
    • Indoor cables: 0.5 mm ATC Switch Board cable for local subscriber connections, and 0.6 mm ATC Switch Board cable for trunk connections.

    Testing Cable Before Laying

    • Cables should be tested for insulation and continuity of cores before laying.
    • Bedding and armouring of the cable should be inspected for damage during transit or storage.

    Laying Out the Cable

    • Cable drums are mounted on cable-wheels, and the cable is guided into the trench carefully to avoid damage.
    • In areas where wheels are not available, the drum is mounted on an axle, and the cable is laid out and carried by labourers.

    General

    • The Permanent Way Inspector or representative should be present during excavation and installation of cable junction boxes.
    • In 'Quad' type cables, conductors diagonally opposite form one circuit.
    • Electro-static and electro-magnetic induction between conductors should be minimized by a lead or aluminium sheath and twisted pairs.

    Cable Termination

    • Cables can be terminated using DP Box of approved type or direct termination.
    • PIJF cables of various sizes should be terminated through DP Box of approved type.

    Jointing of PIJF Cable

    • Jointing should be done by a skilled and experienced person using the correct RDSO specified jointing kit.
    • The entire cable laying and jointing should be done under close supervision of telecom staff.
    • Thermo shrinkable jointing material should be used for jointing armoured PIJF cable with thermo shrinkable jointing technique.

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    Description

    This quiz covers topics related to estimates and surveys in civil engineering, including preparing preliminary works programs and testing remunerativeness.

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