Adrodd fel Amhriodol

Testun Gwreiddiol (Anodiad: EAW004825 / 1434807)

' A white diamond shaped plate on the signal post denotes the track adjacent has a "track circuit" which will indicate the presence of a train to the signalman and therefore rule 55 does not have to involve the fireman to have to report that fact in person. '

Dywedwch wrthym pam mae’r cynnwys hwn yn amhriodol *(gofynnol)

Dewis categori *(gofynnol)

Os ‘Arall’ rhowch fanylion (dewisol)

Eich enw (dewisol)

Eich cyfeiriad e-bost (dewisol)

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