Which of the following has least value of conductivity_________________?

Related Mcqs:

Thermal conductivity of solid metals with rise in temperature normally___________________?

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

In heat transfer, conductance equals conductivity (kcal/hr/sqm/°C/cm) divided by ________________?

A. hr (time) B. sqm (area) C. °C (temperature) D. cm (thickness) E. kcal (heat)....

The rate of energy emission from unit surface area through unit solid angle, along a normal to the surface, is known as ________________?

A. emissivity B. transmissivity C. reflectivity D. intensity of radiation E. absorptivity...

The unit of overall coefficient of heat transfer is___________________?

A. kcal/m2 B. kcal/hr °C C. kcal/m2 hr °C D. kacl/m hr °C E. kcal/m3 hr °C...

The amount of radiation mainly depends on___________________?

A. nature of body B. temperature of body C. type of surface of body D. all of the above E. none of the above...