Signalling Quiz 12

Discussion in 'Quizzes & Games' started by Railsigns, 25 Nov 2011.

Thread Status:
Not open for further replies.
  1. Railsigns

    Railsigns Established Member

    Messages:
    1,764
    Joined:
    15 Feb 2010
    1.

    Why are some AWS magnets painted yellow and others green?

    2.

    What is the specific meaning of the (flashing) red light seen here? What indication is shown when everything is set for a train to proceed?

    [​IMG]

    3.

    Which line will the train be routed towards; A, B or C?

    [​IMG]

    4.

    What is the function of the mechanical apparatus seen here? Where is it?

    [​IMG]

    5.

    What are these and in what respect do they reflect mechanical signalling practice?

    [​IMG]

    6.

    What type of control panel is this?

    [​IMG]

    7.

    What signalling system is in use on this line?

    [​IMG]

    8.

    Describe the optical arrangement employed in this type of signal:

    [​IMG]
     
  2. Registered users do not see these banners - join or log in today!

    Rail Forums

     
  3. ralphchadkirk

    ralphchadkirk Established Member

    Messages:
    5,761
    Joined:
    20 Oct 2008
    Location:
    Essex
    1. Aren't green AWS magnets higher strength for DC areas?

    3. B?
    Sent from my iPhone 4 using Tapatalk
     
  4. tempests1

    tempests1 Member

    Messages:
    239
    Joined:
    3 Aug 2010
    Location:
    Haslemere
    4. Somewhere in Scotland - if rocks break the trip wire a special landslip semaphore signal is replaced to danger indicating to the driver to stop.
    6. On the LUL NX Panel?
    7. Axle Counter - Yellow Mushroom box spotted! (Counter Head)
    8. LED?
     
    Last edited: 25 Nov 2011
  5. Railsigns

    Railsigns Established Member

    Messages:
    1,764
    Joined:
    15 Feb 2010
    They are axle counters, but I'm looking for the name of the signalling system, not the method of train detection!
     
  6. Nym

    Nym Established Member

    Messages:
    8,032
    Joined:
    2 Mar 2007
    Location:
    Somewhere, not in London
    1) Lack of yellow paint...

    2) Awaiting Token, White
    EDIT: Flashing Red means that the paths is 'being removed' on an approach timeout.

    3) B

    4) Counterwights for points or semaphores

    5) Points Interlocking

    6) ?

    7) ERTMS

    8) ?
     
    Last edited: 26 Nov 2011
  7. Schnellzug

    Schnellzug Established Member

    Messages:
    2,926
    Joined:
    22 Aug 2011
    Location:
    Evercreech Junction
    Can i have ago at this?

    I'll pass on 1.
    I presume that like most red lights, it would mean "Do not proceed". Would it turn White?

    3.

    Which line will the train be routed towards; A, B or C?

    [​IMG]
    now that's B.

    4.

    What is the function of the mechanical apparatus seen here? Where is it?

    [​IMG]
    I'd say that was the Hogwarts outer home.

    5. I'm afraid I don't know much about electronics.


    6.
    is that an OCS panel (London Undergound, obviously)
    "MH" is Machynlleth, i guessing, so would that be that ERTMS thingy?
    LED?
     
  8. Railsigns

    Railsigns Established Member

    Messages:
    1,764
    Joined:
    15 Feb 2010
    Right, here are the answers:

    1. Yellow magnets are standard strength. Green magnets are extra strength for use in third rail electrified areas.

    2. The flashing red light means the points are not correctly set for the train. When the points are set and the TPWS is suppressed, a flashing blue light is displayed.

    3. B.

    4. It's a lever post for one of the automatic stone signals in the Pass of Brander, on the Oban line.

    5. These are Trackside Functional Modules (TFMs), part of a Solid State Interlocking (SSI) system. The one on the left is a Points Module and the one on the right is a Signal Module. The connection with mechanical signalling practice is that their label colours match the corresponding lever colours in a mechanical signal box (points levers are black; signal levers are red).

    6. This is referred to as a 'miniature OCS (One Control Switch) panel'. A normal OCS panel has switches; this has push-buttons instead. This is the panel in Cathcart signal box - nothing to do with London Underground!

    7. ERTMS.

    8. There are three halogen lamps behind each lens (one each for red, yellow and green), positioned at right angles to each other. Light is directed from the lit lamp towards the outer lens via coloured dichroic filters/mirrors.
     
  9. ralphchadkirk

    ralphchadkirk Established Member

    Messages:
    5,761
    Joined:
    20 Oct 2008
    Location:
    Essex
    A good quiz that.
     
  10. Schnellzug

    Schnellzug Established Member

    Messages:
    2,926
    Joined:
    22 Aug 2011
    Location:
    Evercreech Junction
    Ah, the Cathcart Circle.
     
  11. DarloRich

    DarloRich Veteran Member

    Messages:
    19,169
    Joined:
    12 Oct 2010
    Location:
    Work - Fenny Stratford(MK) Home - Darlington
    1) Not enougth paint of one colour was ordered to do the whole network?
    2) Attention Driver - Buffet on next station has fresh pies and scones for tea?
    3) None - the cable has been stolen!
    4) Early form of rotary washing line?
    5) Di-Lithiam crystal monitoring device (This is now used to power signaling centres!)
    6) A gray one with lights and buttons?
    7) A Purple one
    8) Superachromat?

    Sorry long day at work - REAL answers to follow ASAP
    --- old post above --- --- new post below ---
    1) Yellow is the standard system while the green is the southern based, higher seated, AWS magnet
    2) The foot crossing at the end of the platform is NOT clear
    3) B
    4) Avalanche trip wire which sets the semaphore signal to danger if the wire is broken? Somewhere like Avimore?
    5) some sort of "block" control system
    6) OCS panel? (but doesnt look right somehow!)
    7) Must be ERTMS
    8) LED projection?
     
    Last edited: 1 Dec 2011
  12. ralphchadkirk

    ralphchadkirk Established Member

    Messages:
    5,761
    Joined:
    20 Oct 2008
    Location:
    Essex
    We've already had the answers DarloRich ;)
     
  13. DarloRich

    DarloRich Veteran Member

    Messages:
    19,169
    Joined:
    12 Oct 2010
    Location:
    Work - Fenny Stratford(MK) Home - Darlington
    SH*T - just noticed that - what a moron! :roll::oops:
     
Thread Status:
Not open for further replies.

Share This Page