Mechanical Engineering Exam > Mechanical Engineering Questions > Assertion (A): A simple or elementary carbure...
Start Learning for Free
Assertion (A): A simple or elementary carburettor provides progressively rich mixturewith increasing air flow
Reason (R): The density of the air tends to increase as the rate of air flow increases.
Reason (R): The density of the air tends to increase as the rate of air flow increases.
- a)Both A and R are individually true and R is the correct explanation of A
- b)Both A and R are individually true but R is not the correct explanation of A
- c)A is true but R is false
- d)A is false but R is true
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Assertion (A): A simple or elementary carburettor provides progressive...
Ans. (c)
Most Upvoted Answer
Assertion (A): A simple or elementary carburettor provides progressive...
Assertion (A): A simple or elementary carburettor provides progressively rich mixture with increasing air flow.
Reason (R): The density of the air tends to increase as the rate of air flow increases.
Explanation:
Carburettors are devices used in internal combustion engines to mix air and fuel in the correct ratio for combustion. A simple or elementary carburettor is a basic type of carburettor that provides a fixed fuel-air mixture ratio.
Assertion (A): A simple or elementary carburettor provides progressively rich mixture with increasing air flow.
This assertion is true. In a simple carburettor, the fuel is drawn into the air stream through a fixed jet orifice. As the air flow increases, more fuel is drawn into the air stream, resulting in a richer fuel-air mixture. This is due to the Bernoulli's principle, which states that as the velocity of a fluid (air in this case) increases, its pressure decreases. This decrease in pressure at the jet orifice allows more fuel to be drawn into the air stream, resulting in a richer mixture.
Reason (R): The density of the air tends to increase as the rate of air flow increases.
This reason is false. The density of air does not increase with increasing air flow. Density is defined as mass per unit volume, and it remains constant for a given air mass regardless of the rate of air flow. The air flow rate may change, but the amount of air (mass) remains the same. Therefore, the density of the air does not change.
Conclusion:
The assertion (A) is true, as a simple carburettor does provide a progressively rich mixture with increasing air flow. However, the reason (R) is false, as the density of the air does not increase with increasing air flow. Therefore, option C is the correct answer.
Reason (R): The density of the air tends to increase as the rate of air flow increases.
Explanation:
Carburettors are devices used in internal combustion engines to mix air and fuel in the correct ratio for combustion. A simple or elementary carburettor is a basic type of carburettor that provides a fixed fuel-air mixture ratio.
Assertion (A): A simple or elementary carburettor provides progressively rich mixture with increasing air flow.
This assertion is true. In a simple carburettor, the fuel is drawn into the air stream through a fixed jet orifice. As the air flow increases, more fuel is drawn into the air stream, resulting in a richer fuel-air mixture. This is due to the Bernoulli's principle, which states that as the velocity of a fluid (air in this case) increases, its pressure decreases. This decrease in pressure at the jet orifice allows more fuel to be drawn into the air stream, resulting in a richer mixture.
Reason (R): The density of the air tends to increase as the rate of air flow increases.
This reason is false. The density of air does not increase with increasing air flow. Density is defined as mass per unit volume, and it remains constant for a given air mass regardless of the rate of air flow. The air flow rate may change, but the amount of air (mass) remains the same. Therefore, the density of the air does not change.
Conclusion:
The assertion (A) is true, as a simple carburettor does provide a progressively rich mixture with increasing air flow. However, the reason (R) is false, as the density of the air does not increase with increasing air flow. Therefore, option C is the correct answer.
Attention Mechanical Engineering Students!
To make sure you are not studying endlessly, EduRev has designed Mechanical Engineering study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Mechanical Engineering.
|
Explore Courses for Mechanical Engineering exam
|
|
Similar Mechanical Engineering Doubts
Top Courses for Mechanical EngineeringView all
Assertion (A): A simple or elementary carburettor provides progressively rich mixturewith increasing air flowReason (R): The density of the air tends to increase as the rate of air flow increases.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'C'. Can you explain this answer?
Question Description
Assertion (A): A simple or elementary carburettor provides progressively rich mixturewith increasing air flowReason (R): The density of the air tends to increase as the rate of air flow increases.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'C'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Assertion (A): A simple or elementary carburettor provides progressively rich mixturewith increasing air flowReason (R): The density of the air tends to increase as the rate of air flow increases.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion (A): A simple or elementary carburettor provides progressively rich mixturewith increasing air flowReason (R): The density of the air tends to increase as the rate of air flow increases.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'C'. Can you explain this answer?.
Assertion (A): A simple or elementary carburettor provides progressively rich mixturewith increasing air flowReason (R): The density of the air tends to increase as the rate of air flow increases.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'C'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Assertion (A): A simple or elementary carburettor provides progressively rich mixturewith increasing air flowReason (R): The density of the air tends to increase as the rate of air flow increases.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion (A): A simple or elementary carburettor provides progressively rich mixturewith increasing air flowReason (R): The density of the air tends to increase as the rate of air flow increases.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Assertion (A): A simple or elementary carburettor provides progressively rich mixturewith increasing air flowReason (R): The density of the air tends to increase as the rate of air flow increases.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free.
Here you can find the meaning of Assertion (A): A simple or elementary carburettor provides progressively rich mixturewith increasing air flowReason (R): The density of the air tends to increase as the rate of air flow increases.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Assertion (A): A simple or elementary carburettor provides progressively rich mixturewith increasing air flowReason (R): The density of the air tends to increase as the rate of air flow increases.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Assertion (A): A simple or elementary carburettor provides progressively rich mixturewith increasing air flowReason (R): The density of the air tends to increase as the rate of air flow increases.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Assertion (A): A simple or elementary carburettor provides progressively rich mixturewith increasing air flowReason (R): The density of the air tends to increase as the rate of air flow increases.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Assertion (A): A simple or elementary carburettor provides progressively rich mixturewith increasing air flowReason (R): The density of the air tends to increase as the rate of air flow increases.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
|
|
Explore Courses for Mechanical Engineering exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup