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A well machined steel plate of thickness L is kept such that the wall temperature are Th and Tc as seen in the figure below. A smooth copper plate of the same thickness L is now attached to the steel plate without any gap as indicated in the figure below. The temperature at the interface is Tt. The temperatures of the outer walls are still the same at Th and Tc. The heat transfer rates are q1 and q2 per unit area in the two cases respectively in the direction shown. Which of the following statements is correct?
[2005]
  • a)
    Th > Ti > Tc and q1 < q2
  • b)
    Th < Ti > Tc and q1 = q2
  • c)
    Th = (Ti + Tc)/2 and q1 > q2
  • d)
    Ti < (Th + Tc)/2 and q1 > q2
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A well machined steel plate of thickness L is kept such that the wall ...
Case -I:

Case-II:

For caseI-:

where 
For Case-II: 

where

As R2 + R3 > R1 at constant temperature difference in both cases.
Then 
For Case-II:
R2 > R3 ∵ kcu > kS


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Most Upvoted Answer
A well machined steel plate of thickness L is kept such that the wall ...
Case -I:

Case-II:

For caseI-:

where 
For Case-II: 

where

As R2 + R3 > R1 at constant temperature difference in both cases.
Then 
For Case-II:
R2 > R3 ∵ kcu > kS


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A well machined steel plate of thickness L is kept such that the wall temperature are Th and Tc as seen in the figure below. A smooth copper plate of the same thickness L is now attached to the steel plate without any gap as indicated in the figure below. The temperature at the interface is Tt. The temperatures of the outer walls are still the same at Th and Tc. The heat transfer rates are q1 and q2 per unit area in the two cases respectively in the direction shown. Which of the following statements is correct?[2005]a)Th > Ti > Tc and q1 < q2b)Th < Ti > Tc and q1 = q2c)Th = (Ti + Tc)/2 and q1 > q2d)Ti < (Th + Tc)/2 and q1 > q2Correct answer is option 'D'. Can you explain this answer?
Question Description
A well machined steel plate of thickness L is kept such that the wall temperature are Th and Tc as seen in the figure below. A smooth copper plate of the same thickness L is now attached to the steel plate without any gap as indicated in the figure below. The temperature at the interface is Tt. The temperatures of the outer walls are still the same at Th and Tc. The heat transfer rates are q1 and q2 per unit area in the two cases respectively in the direction shown. Which of the following statements is correct?[2005]a)Th > Ti > Tc and q1 < q2b)Th < Ti > Tc and q1 = q2c)Th = (Ti + Tc)/2 and q1 > q2d)Ti < (Th + Tc)/2 and q1 > q2Correct answer is option 'D'. 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 A well machined steel plate of thickness L is kept such that the wall temperature are Th and Tc as seen in the figure below. A smooth copper plate of the same thickness L is now attached to the steel plate without any gap as indicated in the figure below. The temperature at the interface is Tt. The temperatures of the outer walls are still the same at Th and Tc. The heat transfer rates are q1 and q2 per unit area in the two cases respectively in the direction shown. Which of the following statements is correct?[2005]a)Th > Ti > Tc and q1 < q2b)Th < Ti > Tc and q1 = q2c)Th = (Ti + Tc)/2 and q1 > q2d)Ti < (Th + Tc)/2 and q1 > q2Correct answer is option 'D'. 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 A well machined steel plate of thickness L is kept such that the wall temperature are Th and Tc as seen in the figure below. A smooth copper plate of the same thickness L is now attached to the steel plate without any gap as indicated in the figure below. The temperature at the interface is Tt. The temperatures of the outer walls are still the same at Th and Tc. The heat transfer rates are q1 and q2 per unit area in the two cases respectively in the direction shown. Which of the following statements is correct?[2005]a)Th > Ti > Tc and q1 < q2b)Th < Ti > Tc and q1 = q2c)Th = (Ti + Tc)/2 and q1 > q2d)Ti < (Th + Tc)/2 and q1 > q2Correct answer is option 'D'. Can you explain this answer?.
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