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A fin protrudes from a surface which is held at a temperature higher than that of its environments. The heat transferred away from the fin is
- a)heat escaping from the tip of the fin
- b)heat conducted along the fin length
- c)convective heat transfer from the fin surface
- d)sum of heat conducted along the fin length and that converted from the surface
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A fin protrudes from a surface which is held at a temperature higher t...
The correct answer to the question is option 'C', which states that the heat transferred away from the fin is convective heat transfer from the fin surface. Let's understand why this is the correct answer by considering the different modes of heat transfer involved.
Heat transfer can occur through three modes: conduction, convection, and radiation. In this scenario, the fin is protruding from a surface that is held at a temperature higher than that of its surroundings. This means that there is a temperature gradient between the fin and its surroundings, which drives the heat transfer.
*Conduction along the fin length*
Conduction is the transfer of heat through a solid material, and it occurs when there is a temperature gradient within the material. In the case of the fin, there will be heat transfer through conduction along its length. However, this heat transfer is not the dominant mode of heat transfer in this scenario because the fin is exposed to a higher temperature surface.
*Convective heat transfer from the fin surface*
Convective heat transfer occurs when there is a fluid (such as air or water) in motion, and it involves the transfer of heat between the surface of a solid object and the fluid. In this case, the fin is exposed to its surroundings, which may include air. The air near the fin surface will be heated due to the temperature difference between the fin and its surroundings. This heated air will then rise and be replaced by cooler air, creating a convective heat transfer from the fin surface. This convective heat transfer is the dominant mode of heat transfer in this scenario.
*Heat escaping from the tip of the fin*
Heat escaping from the tip of the fin can occur, but it is a result of the convective heat transfer from the fin surface. As the heated air rises from the fin surface, some of it may escape from the tip of the fin. However, this heat transfer is a part of the convective heat transfer process and not an independent mode of heat transfer.
Therefore, the correct answer is option 'C' - convective heat transfer from the fin surface.
Heat transfer can occur through three modes: conduction, convection, and radiation. In this scenario, the fin is protruding from a surface that is held at a temperature higher than that of its surroundings. This means that there is a temperature gradient between the fin and its surroundings, which drives the heat transfer.
*Conduction along the fin length*
Conduction is the transfer of heat through a solid material, and it occurs when there is a temperature gradient within the material. In the case of the fin, there will be heat transfer through conduction along its length. However, this heat transfer is not the dominant mode of heat transfer in this scenario because the fin is exposed to a higher temperature surface.
*Convective heat transfer from the fin surface*
Convective heat transfer occurs when there is a fluid (such as air or water) in motion, and it involves the transfer of heat between the surface of a solid object and the fluid. In this case, the fin is exposed to its surroundings, which may include air. The air near the fin surface will be heated due to the temperature difference between the fin and its surroundings. This heated air will then rise and be replaced by cooler air, creating a convective heat transfer from the fin surface. This convective heat transfer is the dominant mode of heat transfer in this scenario.
*Heat escaping from the tip of the fin*
Heat escaping from the tip of the fin can occur, but it is a result of the convective heat transfer from the fin surface. As the heated air rises from the fin surface, some of it may escape from the tip of the fin. However, this heat transfer is a part of the convective heat transfer process and not an independent mode of heat transfer.
Therefore, the correct answer is option 'C' - convective heat transfer from the fin surface.
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A fin protrudes from a surface which is held at a temperature higher t...
In this heat also conducted along fin also right pls exp
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A fin protrudes from a surface which is held at a temperature higher than that of its environments. The heat transferred away from the fin isa)heat escaping from the tip of the finb)heat conducted along the fin lengthc)convective heat transfer from the fin surfaced)sum of heat conducted along the fin length and that converted from the surfaceCorrect answer is option 'C'. Can you explain this answer?
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A fin protrudes from a surface which is held at a temperature higher than that of its environments. The heat transferred away from the fin isa)heat escaping from the tip of the finb)heat conducted along the fin lengthc)convective heat transfer from the fin surfaced)sum of heat conducted along the fin length and that converted from the surfaceCorrect answer is option 'C'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about A fin protrudes from a surface which is held at a temperature higher than that of its environments. The heat transferred away from the fin isa)heat escaping from the tip of the finb)heat conducted along the fin lengthc)convective heat transfer from the fin surfaced)sum of heat conducted along the fin length and that converted from the surfaceCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A fin protrudes from a surface which is held at a temperature higher than that of its environments. The heat transferred away from the fin isa)heat escaping from the tip of the finb)heat conducted along the fin lengthc)convective heat transfer from the fin surfaced)sum of heat conducted along the fin length and that converted from the surfaceCorrect answer is option 'C'. Can you explain this answer?.
A fin protrudes from a surface which is held at a temperature higher than that of its environments. The heat transferred away from the fin isa)heat escaping from the tip of the finb)heat conducted along the fin lengthc)convective heat transfer from the fin surfaced)sum of heat conducted along the fin length and that converted from the surfaceCorrect answer is option 'C'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about A fin protrudes from a surface which is held at a temperature higher than that of its environments. The heat transferred away from the fin isa)heat escaping from the tip of the finb)heat conducted along the fin lengthc)convective heat transfer from the fin surfaced)sum of heat conducted along the fin length and that converted from the surfaceCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A fin protrudes from a surface which is held at a temperature higher than that of its environments. The heat transferred away from the fin isa)heat escaping from the tip of the finb)heat conducted along the fin lengthc)convective heat transfer from the fin surfaced)sum of heat conducted along the fin length and that converted from the surfaceCorrect answer is option 'C'. Can you explain this answer?.
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