The rate of emission of radiation by a body does not depend upon the__________________?

Related Mcqs:

What is the geometric mean of two heat transfer areas A1 and A2 ?

A. √(A1 . A2) B. √(A1 + A2) C. ½ √(A1 . A2) D. 2 √(A1 . A2)...

A composite wall consists of two plates A and B placed in series normal to the flow of heat. The thermal conductivities are kA and kB and the specific heat capacities are CPA and CPB for plates A and B respectively. Plate B has twice the thickness of plate A. At steady state, the temperature difference across plate A is greater than that across plate B, when_________________?

A. CPA > CPB B. CPA < CPB C. kA < 0.5 kB D. kA >2 kB...

Which of the following parameters of the fluid is not very important, while deciding its route in a shell and tube heat exchanger ?

A. Corrosiveness & fouling characteristics B. Pressure C. Viscosity D. Density...

The main purpose of providing fins on heat transfer surface is to increase the_________________?

A. Temperature gradient B. Mechanical strength of the equipment C. Heat transfer area D. Heat transfer co-efficient...

Convective heat transfer, in which heat is transferred by movement of warmed matter is described by___________________?

A. Fourier’s law B. Newton’s law of cooling C. Fick’s law D. None of these...