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Which among the following is not a means of isolation
Sand hump
Derailing switch
Skid
Snag dead end
Skid
Sand humps, derailing switches, and snag dead ends are standard approved means of isolation in railway signaling. A skid is a device used for braking or stopping rolling stock, not a permanent means of isolation.
Sand humps, derailing switches, and snag dead ends are standard approved means of isolation in railway signaling. A skid is a device used for braking or stopping rolling stock, not a permanent means of isolation.
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