A.0.001 kcal/m-hr-?C
B.0.05 kcal/m-hr-?C
C.0.5 kcal/m-hr-?C
D.1.0 kcal/m-hr-?C
E.1.5 kcal/m-hr-?C
Related Mcqs:
- Thermal conductivity of air at room temperature is approximately
- Thermal conductivity of air at room temperature in kcal/m-hr-?C is nearly
- The face temperatures of a flat wall are 650?C and 450?C respectively and the thermal conductivity of wall material is 0.30 kcal/m-hr-?C. For a wall thickness of 20 cm, the rate of heat conduction per square meter of wall area will be
- A sphere of radius 40 cm is lagged to a radius of 50 cm. The temperatures of outer and inner surfaces are 66?C and 235?C respectively. Thermal conductivity of logging per cm thickness is 0.7 kcal/m-hr?C. The rate of heat leakage will be
- The surface temperatures of a flat wall are 650?C and 450?C respectively and the thermal conductivity of the wall material is 0.30 kcal/m-hr-?C. The heat flux for a wall of 20 cm thickness will be
- The highest value of thermal conductivity is expected for
- The calorific value of diesel oil is expected to be around
- Which one of the following cannot be unit of thermal conductivity?
- Which variety of steel may be expected to have lowest value of thermal conductivity?
- Which sample of concrete may be expected to have highest value of thermal conductivity
