Three Materials A, B and C of Equal Thickness and of Thermal

question 22

Multiple Choice

Three materials A, B and C of equal thickness and of thermal conductivity of 20, 40 & 60 kcal/hr. m. °C respectively are joined together. The temperature outside of A and C are 30°C and 100°C respectively. The interface between B and C will be at a temperature of __________ °C.

• A)40
• B)95
• C)70
• D)50

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