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Paragraph on “How does steam work engines?” complete paragraph for Class 9, Class 10, Class 11 and Class 12
How does steam work engines?
When water is boiling in a kettle steam rushes out of the spout and lid with great force. It often moves the lid up and down as it escapes. This force is what drives steam engines.
A fire heats water in a boiler, sending steam to a cylinder. This is a short, strong pipe with a round piston inside, which can move up and down. When steams let in through a valve at the bottom it drives the piston up to the top. Then the steam is let out and the piston comes down again. A rod connects the piston to a wheel which is driven round and round as the piston goes up and down. In a railway locomotive this is one of the big driving wheels underneath.
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