Stefan Boltzmann law is applicable for heat transfer by __________________?

Related Mcqs:

Thermal conductivity of non-metallic amorphous solids with decrease in temperature __________________?

A. increases B. decreases C. remains constant D. may increase or decrease depending on temperature E. unpredictable...

Temperature of steam at around 540°C can be measured by ____________________?

A. thermometer B. radiatiouv pyrometer C. thermistor D. thermocouple E. thermopile...

Thermal diffusivity is ____________________?

A. a dimensionless parameter B. function of temperature C. used as mathematical model D. a physical property of the material E. useful in case of heat transfer by radiation...

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...

The thermal diffusivities for gases are generally_____________________?

A. more than those for liquids B. less than those for liquids C. more than those for solids D. dependent on the viscosity E. same as for the liquids...