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Assertion (A): The leakage heat transfer from the outside surface of asteel pipe carrying hot gases is reduced to a greater extent on providing refractory brick lining on the inside of the pipe as compared to that with brick lining on the outside.
Reason (R): The refractory brick lining on the inside of the pipe offersa higher thermal resistance.
Reason (R): The refractory brick lining on the inside of the pipe offersa higher thermal resistance.
- 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 'A'. Can you explain this answer?
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Assertion (A): The leakage heat transfer from the outside surface of a...
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Assertion (A): The leakage heat transfer from the outside surface of a...
Assertion (A): The leakage heat transfer from the outside surface of a steel pipe carrying hot gases is reduced to a greater extent on providing refractory brick lining on the inside of the pipe as compared to that with brick lining on the outside.
Reason (R): The refractory brick lining on the inside of the pipe offers a higher thermal resistance.
Explanation:
The given assertion states that the leakage heat transfer from the outside surface of a steel pipe carrying hot gases is reduced to a greater extent when refractory brick lining is provided on the inside of the pipe as compared to when the brick lining is provided on the outside. The reason provided is that the refractory brick lining on the inside of the pipe offers a higher thermal resistance.
To analyze the assertion and reason, let's break down the components and understand their effects on heat transfer:
Heat Transfer:
Heat transfer is the process by which thermal energy is exchanged between different systems, such as from a hot object to a colder one. It can occur through various mechanisms, including conduction, convection, and radiation.
Leakage Heat Transfer:
Leakage heat transfer refers to the heat transfer that occurs through the outer surface of a pipe carrying hot gases. It is the heat that escapes from the system and is undesirable in many applications.
Refractory Brick Lining:
Refractory brick lining is a layer of heat-resistant material, typically made of refractory bricks, that is applied to the inner or outer surface of a pipe to reduce heat transfer. The refractory brick lining acts as a thermal barrier and helps in retaining the heat within the pipe.
Thermal Resistance:
Thermal resistance is a measure of how much a material or structure resists the flow of heat. It depends on the thermal conductivity of the material and its thickness. A higher thermal resistance means that the material offers more resistance to heat transfer.
Analysis:
When refractory brick lining is provided on the inside of the pipe, it creates a barrier between the hot gases and the outer surface of the pipe. This reduces the heat transfer from the hot gases to the outer surface of the pipe, thereby reducing the leakage heat transfer.
The reason provided in the assertion is that the refractory brick lining on the inside of the pipe offers a higher thermal resistance. This is because the refractory bricks have a lower thermal conductivity compared to the steel pipe. As a result, they offer more resistance to heat transfer, preventing the hot gases from easily transferring their heat to the outer surface of the pipe.
Thus, both the assertion and the reason are individually true, and the reason correctly explains the assertion. The refractory brick lining on the inside of the pipe indeed reduces the leakage heat transfer to a greater extent due to its higher thermal resistance.
Reason (R): The refractory brick lining on the inside of the pipe offers a higher thermal resistance.
Explanation:
The given assertion states that the leakage heat transfer from the outside surface of a steel pipe carrying hot gases is reduced to a greater extent when refractory brick lining is provided on the inside of the pipe as compared to when the brick lining is provided on the outside. The reason provided is that the refractory brick lining on the inside of the pipe offers a higher thermal resistance.
To analyze the assertion and reason, let's break down the components and understand their effects on heat transfer:
Heat Transfer:
Heat transfer is the process by which thermal energy is exchanged between different systems, such as from a hot object to a colder one. It can occur through various mechanisms, including conduction, convection, and radiation.
Leakage Heat Transfer:
Leakage heat transfer refers to the heat transfer that occurs through the outer surface of a pipe carrying hot gases. It is the heat that escapes from the system and is undesirable in many applications.
Refractory Brick Lining:
Refractory brick lining is a layer of heat-resistant material, typically made of refractory bricks, that is applied to the inner or outer surface of a pipe to reduce heat transfer. The refractory brick lining acts as a thermal barrier and helps in retaining the heat within the pipe.
Thermal Resistance:
Thermal resistance is a measure of how much a material or structure resists the flow of heat. It depends on the thermal conductivity of the material and its thickness. A higher thermal resistance means that the material offers more resistance to heat transfer.
Analysis:
When refractory brick lining is provided on the inside of the pipe, it creates a barrier between the hot gases and the outer surface of the pipe. This reduces the heat transfer from the hot gases to the outer surface of the pipe, thereby reducing the leakage heat transfer.
The reason provided in the assertion is that the refractory brick lining on the inside of the pipe offers a higher thermal resistance. This is because the refractory bricks have a lower thermal conductivity compared to the steel pipe. As a result, they offer more resistance to heat transfer, preventing the hot gases from easily transferring their heat to the outer surface of the pipe.
Thus, both the assertion and the reason are individually true, and the reason correctly explains the assertion. The refractory brick lining on the inside of the pipe indeed reduces the leakage heat transfer to a greater extent due to its higher thermal resistance.
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Assertion (A): The leakage heat transfer from the outside surface of asteel pipe carrying hot gases is reduced to a greater extent on providing refractory brick lining on the inside of the pipe as compared to that with brick lining on the outside.Reason (R): The refractory brick lining on the inside of the pipe offersa higher thermal resistance.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 'A'. Can you explain this answer?
Question Description
Assertion (A): The leakage heat transfer from the outside surface of asteel pipe carrying hot gases is reduced to a greater extent on providing refractory brick lining on the inside of the pipe as compared to that with brick lining on the outside.Reason (R): The refractory brick lining on the inside of the pipe offersa higher thermal resistance.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 'A'. 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): The leakage heat transfer from the outside surface of asteel pipe carrying hot gases is reduced to a greater extent on providing refractory brick lining on the inside of the pipe as compared to that with brick lining on the outside.Reason (R): The refractory brick lining on the inside of the pipe offersa higher thermal resistance.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 'A'. 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): The leakage heat transfer from the outside surface of asteel pipe carrying hot gases is reduced to a greater extent on providing refractory brick lining on the inside of the pipe as compared to that with brick lining on the outside.Reason (R): The refractory brick lining on the inside of the pipe offersa higher thermal resistance.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 'A'. Can you explain this answer?.
Assertion (A): The leakage heat transfer from the outside surface of asteel pipe carrying hot gases is reduced to a greater extent on providing refractory brick lining on the inside of the pipe as compared to that with brick lining on the outside.Reason (R): The refractory brick lining on the inside of the pipe offersa higher thermal resistance.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 'A'. 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): The leakage heat transfer from the outside surface of asteel pipe carrying hot gases is reduced to a greater extent on providing refractory brick lining on the inside of the pipe as compared to that with brick lining on the outside.Reason (R): The refractory brick lining on the inside of the pipe offersa higher thermal resistance.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 'A'. 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): The leakage heat transfer from the outside surface of asteel pipe carrying hot gases is reduced to a greater extent on providing refractory brick lining on the inside of the pipe as compared to that with brick lining on the outside.Reason (R): The refractory brick lining on the inside of the pipe offersa higher thermal resistance.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 'A'. Can you explain this answer?.
Solutions for Assertion (A): The leakage heat transfer from the outside surface of asteel pipe carrying hot gases is reduced to a greater extent on providing refractory brick lining on the inside of the pipe as compared to that with brick lining on the outside.Reason (R): The refractory brick lining on the inside of the pipe offersa higher thermal resistance.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 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
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ample number of questions to practice Assertion (A): The leakage heat transfer from the outside surface of asteel pipe carrying hot gases is reduced to a greater extent on providing refractory brick lining on the inside of the pipe as compared to that with brick lining on the outside.Reason (R): The refractory brick lining on the inside of the pipe offersa higher thermal resistance.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 'A'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
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