engineering recuitment UKPSC Polytechnic Lecturer Mock Test 2024 Heat Transfer Conduction Heat Conduction Through Plane and Composite Walls
In a furnace the heat loss through the 150 mm thick refractory wall lining is estimated to be 50 W/m2. If the average thermal conductivity of the refractory material is 0.05 W/mK, the temperature drop across the wall will be:
1
140°C
2
150°C
3
160°C
4
170°C