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Air line busting disc bust out during maneouvering what will be your action?

It is fitted in the starting air pipe and consist of a perforated disc protected by a sheet of material which will burst in case of excessive pressure caused due to air line explosion. It also consist of a protective cap such
constructed that if the engine is required to run even after the disc has been ruptured, the cap will cover the holes when it is turned. This will ensure that in maneuvering traffic air is available for engine at all time

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