A.8
B.4
C.2
Related Mcqs:
- There metal walls of same cross-sectional area having thermal conductivity in the ratio 1 : 2 : 4 transfer heat at the rate of 15000 kcal/hr. For same thickness of wall, the temperature deop will be in the ratio
- The ratio of thermal conductivity of water to that of ice is nearly
- If thermal conductivity of aluminium is say 100 units at 0?C, the thermal conductivity at 500?C will be closer to
- The ratio of heat flow QA/QB from two walls of same thickness having thermal conductivity kA = 2 kB, for the same temperature difference will be
- For soldering of brass and copper, the flux used is
- Which one of the following will have least value of thermal conductivity?
- Which one of the following cannot be unit of thermal conductivity?
- Thermal conductivity of water at 20?C is nearly
- Which of the following has the highest value of the thermal conductivity
- The average value of thermal conductivity for air at 20?C is about
