Blow-back

Blow-back

The forcing of flames and smoke from the fire through the fire hole into the cab of a locomotive due to the draught through the tubes being reversed. It can occur when the regulator is closed while the locomotive is moving and is normally prevented by the use of the blower. A blow-back can be very dangerous to the crew and there have been fatalities in the past as a result of blow-backs.

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Part of Speech: noun
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Industry/Domain: Transportation
Category: Railway
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