RRB  Placement Paper   Whole Testpaper   -1 Jan 1900

RRB  Placement Paper   Whole Testpaper   -1 Jan 1900

  • Posted by  FreshersWorld 
    7 Jan, 2012


    Q1: With the help of a sketch, define station limits for ?B? class stations equipped with

    Two Aspect signalling on single line and double line sections.

    Q2: What are the classifications of stations in Indian Railways?

    Q3: What do you mean by ?Read Back Technique? in Railway signalling? Please cite few

    examples of this technique being used in your Railway.

    Q4: What is the difference between ?A? Marker and ?A? Board in Railway signalling?

    Q6: What do you mean by the ?S? Marker and where it is being used in

    Railway signalling?

    Q5: What is the normal aspect of a signal in Automatic signalling territory? Q6: What do you mean by Slip siding and Catch siding? Write down cases when Slip

    siding and Catch siding are required to be provided in the Railway system. Q7: In Indian Railways, what are the systems of train working adopted? Please also

    mention the name of the most widely used system on Indian Railways.

    Q8: Please prepare the locking table for Lever numbers 1, 3, 4, 6 & 7 of the following

    diagram: -

    Q9: What are the essential requirements of the Absolute Block System?

    Q10: What are the standards of interlocking prescribed in Railway Signalling? Q11: What are the different classes of LC gates? Please explain.

    Q12: What do you mean by the term ?Route Holding? in Railway signalling? Please

    explain the various means to achieve the same.

    Q13: What do you mean by ?Loose? and ?Tight? locking in Railway signalling? Please

    explain with examples.

    Q14: What do you mean by Ballast Resistance? What are the minimum permissible

    values for the ballast resistance in the station yard and in the Block section?


    Q15: What do you mean by the staggering of adjacent track circuit rail polarities and why

    is this required?

    Q16: List the names of various types of traction bonds used in RE area using

    DC track circuits.

    Q17: Write down the adjustment of DC track circuit for failsafe and reliable working.

    Q18: What do you mean by Fouling Protection of Track? Please explain.

    Q19: What is Dead Section in track circuit area and how can it be eliminated? Q20: What do you mean by cut section track circuit and/or fed over track circuits?

    Q21: Can an AFTC be used in a track section with steel sleepers? Why? Q22: What do you mean by ?End Fed? and ?Centre Fed? types of AFTCs along-with

    corresponding maximum permissible lengths of track circuits? Q23: What are the various types of Bonds being used in AFTCs?

    Q24: Please list the names of the constituent parts of a Electrical Lever Lock and its


    Q25:: What do you mean by Indication Locking and Track Locking and on which levers

    these are being used?

    Q26: Explain the working of Snubbing Circuit in Point machine operation using 3-wire


    Q27: What is the concept of Cross protection in signalling circuits? Please explain.

    Q28: Explain the working of 4-wire point detection circuit using circuit diagram.

    Q29: What do you mean by super imposed detection of points? As per the latest

    directives of Railway Board, is it suggested to use this arrangement?

    Q30: Write down the general features of IRS Rotary Type point machines with

    143 mm stroke.

    Q31: Explain the working of Point operation circuit using Siemens Point

    Contactor unit in

    an electromechanical installation.

    Q32: What do you mean by RHS and LHS turnouts? Can we use the same type of Point

    machine (IRS Rotary type) for both the turnouts? Please explain. Q33: Compare different types of conventional signal lamps.

    Q34:: What are the different types of ECRs being used with conventional signal lamps?

    Q35: What are Triple Pole lamps? Describe their merits over Double pole lamps.

    Q36: What do you mean by H-Type, I-Type and L-Type signal transformers along-with

    their uses?


    Q37: What is Aspect Control and Aspect Control circuits? Draw an aspect control circuit

    for an inner distant signal in Double Distant signalling territory.

    Q38: What is cascading of signal aspects? Explain with suitable circuit diagram.

    Q39: What do you mean by Red Lamp Protection? Expalin with suitable diagrams.

    Q40: What do you mean by Cutting in Arrangement in signalling circuits and reason for

    its use?

    Q41: What do you mean by ?Direct Feeding?, ?Local Feeding? and ?Remote

    Feeding? of signals? Explain.

    Q42: Describe the advantages of LED signal Lamps over conventional signal lamps.

    Q43: What are the various PVC signal cables used in Railway signalling in

    SECR? Are

    they screened one or not?

    Q44: What do you mean by cable meggering? Please explain.

2009-2016 downloadmela.com. All rights reserved.