1. Write 5 uses of filtration used in your daily lives.
2. You must have seen black smoke coming out of some vehicles such as cars or trucks. This
smoke is a mixture of gases! But they are harmful for living things. Find the reason and we
in your note book.
Answers
Explanation:
Black smoke or white smoke from exhaust: What’s wrong with your car?
Posted on March 2, 2015 by Roshun Povaiah
Smoking is injurious to health. And smoke from a car’s exhaust is a symptom of an engine that is in poor health. A petrol car billowing white smoke – what could be the issue? A diesel car belching out black smoke – what is the problem? We look at some common causes and suggested remedies for smoky exhausts for both petrol cars and diesel cars.
India is ready to move to Euro V emission norms in metros and Euro IV norms elsewhere, which would mean even lower emission standards from vehicles. Pollution Under Control (PUC) certificates are now mandatory for all vehicles. A well-maintained car should not have any visible smoke 90% of the time. But if you do have a problem with a smoky exhaust, here’s what the likely problems could be.
diesel-exhaust-fumes-photo
Smoke from a petrol car
Petrol cars usually have next to no visible smoke from the tailpipe. So if a petrol car is emitting smoke, then there is a problem with the car.
Black Smoke
If a petrol car is emitting black smoke, it is a sure sign of the engine running too rich. That means excessive fuel is being burnt, with too little air, causing soot to be blown out of the exhaust. The common causes for this happening are if the air filter is clogged or dirty and you try to accelerate. This is also associated with a loss of pick up or stalling of the engine. Another cause for black smoke in older vehicles (that had manual timing adjustments) is poor ignition timing. Another cause for some black smoke in a petrol car especially in the morning is if the electronic choke gets stuck – a petrol car usually runs rich for the first few minutes when cold, till the engine warms up. (In older cars with carburetors you had to manually use the choke, and failing to release it fully led to black smoke and soot build up inside the exhaust).
Answer:
- during purifying .water
- during filter some dusts like small stone from water
Explanation:
yaa smoke is mixture of gases and they are harmful for living things because there is mixture of dangerous gases like CO2 and co etc.............that cause many problem