Unit of thermal conductivity in S.I. units is__________________?

Related Mcqs:

Heat flowing from one side to other depends directly on ___________________?

Pick up the wrong case? A. face area B. time C. thickness D. temperature difference E. thermal conductivity...

The amount of heat flow through a body by conduction is_______________?

A. directly proportional to the surface area of the body B. directly proportional to the temperature difference on the two faces of the body C. dependent upon the material of the body D. inversely proportional to the thickness of the body E. all of the above...

In heat exchangers, degree of approach is defined as the difference between temperatures of________________?

A. cold water inlet and outlet B. hot medium inlet and outlet C. hot medium outlet and cold water inlet D. hot medium outlet and cold water outlet E. none of the above...

According to Stefan-Boltzmann law, ideal radiators emit radiant energy at a rate proportional to___________________?

A. absolute temperature B. square of temperature C. fourth power of absolute temperature D. fourth power of temperature E. cube of absolute temperature...

According to Stefan’s law, the total radiation from a black body per second per unit area is proportional to____________________?

A. absolute temperature B. T2 C. T5 D. t E. l/T...