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Q142 (UPPCS/2022) Science & Technology › Basic Science (Physics, Chemistry, Biology)

In which of the following types of heat engines carburetor is used ?

Explanation

A carburetor is a device used in internal combustion engines to mix air with a fine spray of liquid fuel (petrol) in the correct ratio for combustion. It is specifically used in petrol engines (also known as spark-ignition engines).

  • Petrol Engine: Uses a carburetor to prepare the air-fuel mixture before it enters the cylinder, where it is ignited by a spark plug.
  • Diesel Engine: Does not use a carburetor. It draws only air into the cylinder, compresses it to a high temperature, and then injects fuel directly into the combustion chamber using a fuel injector.
  • Steam Engine: Is an external combustion engine where fuel is burned outside the engine to produce steam; hence, it does not require a carburetor.
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