Which whistle code shall be used by loco pilot while Guard’s assistance is required? A. Long continue B. Intermediate long continue C. Three short D. Three long

The correct answer is C. Three short.

The whistle code for loco pilot while Guard’s assistance is required is three short blasts. This code is used to alert the guard that the loco pilot needs assistance. The guard will then come to the locomotive to provide assistance.

The other options are incorrect. A long continue whistle code is used to indicate that the train is about to start

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