Q225 / 240 · KCET 2026 · Physics
Instrument fitted in the carburetor of the automobile to provide the correct mixture of air and fuel necessary for combustion works on
- APascal's Law
- Correct answerBBernoulli's Principle
- CNewton's Law of Cooling
- DArchimede's Principle
Solution
The carburetor of an automobile works on Bernoulli's principle.
As air flows through the narrow section (venturi) of the carburetor, its velocity increases. According to Bernoulli's principle, this increase in velocity results in a decrease in pressure.
The low pressure created in the venturi draws fuel from the float chamber into the air stream, creating the correct mixture of air and fuel necessary for combustion.
Answer: Bernoulli's Principle
As air flows through the narrow section (venturi) of the carburetor, its velocity increases. According to Bernoulli's principle, this increase in velocity results in a decrease in pressure.
The low pressure created in the venturi draws fuel from the float chamber into the air stream, creating the correct mixture of air and fuel necessary for combustion.
Answer: Bernoulli's Principle
Hence, the correct answer is option: 'B'.