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They are called contrails. They are formed when hot exaust from the jet engines reacts to the much cooler upper atmospheric air and water vapor forms, usually freezing and making those long thin clouds that criss cross the sky.
Wiki User
∙ 15y ago
Wiki User
∙ 13y agoSometimes jet engines do not completely burn their fuel, resulting in a visible smoke trail behind the aircraft due to incomplete combustion and the inclusion of non-hydrocarbon impurities.
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Can car exhaust kill you?
Yes, the carbon monoxide coming out of the car's enginewill cause you to suffocate.
What happens when you put iodine on noodles?
Iodine is a poison. It can also cause skin damage. It also will cause the noodles to change to a blue black color
Why petroleum is known as black gold?
Petroleum is known as "Black Gold", cause it's Black and it's worth a lot and is indispensable for the human civilization !
In which step of the four stroke engine cycle does the heat from the combustion reaction cause the pistons to move?
combustion and expansion
In which step of the four-stroke engine cycle does the heat from the combustion reaction cause the pistons to move?
combustion and expansion
What would cause gas in the exhaust on a motorcycle?
Exhaust of an engine is a gas.
What cause black smoke in the exhaust?
Black smoke is caused by the engine ~not~ burning all of its fuel. The most common cause of incomplete fuel burn is a clogged air filter, exhaust system (muffler) or injectors covered with carbon build-up. Another cause is too much fuel entering the engine to be burned due to either bad calibration or too heavy a load.
What cause engine to run rich with black exhaust?
black exhaust indicates too much fuel or insufficient air in the mixture. It may be a leaking or sticking injector, a blocked air filter or a sensor may not be functioning properly and the computer is sending more fuel to the engine to compensate.
How will a hole in the exhaust cause black smoke?
Its a long shot but... If you have a leak in the exhaust before the oxygen sensors, the sensors will think the engine is running lean. The computer will compensate (from incorrect input data) by increasing fuel delivery, causing the air/fuel mixture to go rich. If the engine runs super rich the exhaust will be black, and very noticable when you accelerate.
What engine control or sensor would cause black sooty exhaust above idle speed on a 1988 merkur xr4ti?
Could be EGR Valve.
What would cause backfir?
Exhaust leaks close to the engine.
What can cause black carbon from the exhaust?
It would be unburnt fuel
What causes black sooty exhaust?
What can cause black sooty exhaust is bad valve guides. When the guides are bad oil leaks into the cylinder when the car isn't running. When the car starts it produces black exhaust.
Will an exhaust leak at the rear exhaust port of a 460 ford engine burn a valve or cause other harm to the engine?
Yes, a prolonged exhaust leak will eventually cause problems with your cylinder head. The leaking exhaust is very hot and you can cause small cracks in the head if you don't repair the problem promptly. If you can hear the exhaust leaking, it may already be too late! Get it checked out soon!
What damage does fire cause to aircraft?
May cause engine stop. And if the aircraft is standing still with fire around it, the flames can enter the vent holes for the fuel tanks and cause explosion.
What can cause white smoke from a diesel?
Moisture in the exhaust, or a cold running engine.
Will a blocked exhaust pipe cause check engine light to come on?
It could.
