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  2. Diesel exhaust - Wikipedia

    en.wikipedia.org/wiki/Diesel_exhaust

    Diesel exhaust is the exhaust gas produced by a diesel engine, ... resulting in blue and white smoke and lower power outputs until the engine has warmed. This is ...

  3. Head gasket - Wikipedia

    en.wikipedia.org/wiki/Head_gasket

    Blue smoke from the exhaust suggests that excess oil is entering the combustion chambers (although there are other possible causes than a head gasket leak). White smoke from the exhaust suggests that coolant is entering the combustion chamber. Head gasket leaks are classified as either external or internal.

  4. Exhaust gas - Wikipedia

    en.wikipedia.org/wiki/Exhaust_gas

    Diesel exhaust is the exhaust gas produced by a diesel engine, plus any contained particulates. Its composition may vary with the fuel type, rate of consumption or speed of engine operation (e.g., idling or at speed or under load), and whether the engine is in an on-road vehicle, farm vehicle, locomotive, marine vessel, or stationary generator ...

  5. Smoke - Wikipedia

    en.wikipedia.org/wiki/Smoke

    As early as the 15th century Leonardo da Vinci commented at length on the difficulty of assessing smoke, and distinguished between black smoke (carbonized particles) and white 'smoke' which is not a smoke at all but merely a suspension of harmless water particulates. [64] Smoke from heating appliances is commonly measured in one of the ...

  6. Smoke screen - Wikipedia

    en.wikipedia.org/wiki/Smoke_screen

    Zinc chloride smoke is grey-white and consists of tiny particles of zinc chloride. The most common mixture for generating these is a zinc chloride smoke mixture (HC), consisting of hexachloroethane, grained aluminium and zinc oxide. The smoke consists of zinc chloride, zinc oxychlorides, and hydrochloric acid, which absorb the moisture in the

  7. Flashover - Wikipedia

    en.wikipedia.org/wiki/Flashover

    For example, there was a fire in a rubber mattress factory in London in 1975 which produced white smoke. The white smoke was not considered dangerous, so firefighters decided to ventilate, which caused a smoke explosion and killed two firefighters. The white smoke from the pyrolysis of the rubber turned out to be extremely flammable. [citation ...

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  9. Contrail - Wikipedia

    en.wikipedia.org/wiki/Contrail

    The exhaust particles in the aircraft's exhaust act as this trigger, causing the trapped vapor to condense rapidly. Exhaust contrails usually form at high altitudes; usually above 8,000 m (26,000 ft), where the air temperature is below −36.5 °C (−34 °F). They can also form closer to the ground when the air is cold and moist. [7]