Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the____________________?

Related Mcqs:

Walls of a cubical oven are of thickness l, and they are made of material of thermal conductivity k. The temperature inside the oven is 100°C and the inside heat transfer coefficient is „3k/l’. If the wall temperature on the outside is held at 25°C, what is the inside wall temperature in degree centigrade ?

A. 35.5 B. 43.75 C. 81.25 D. 48.25...

Pick out the wrong statement ?

A. In drying a solid containing moisture above the critical moisture content the number of degrees of freedom is 2 B. Sherwood number in mass transfer corresponds to Nusselt number in heat transfer and Schmidt number to Prandtl number C. Forced convection is relatively more effective in increasing the rate of mass transfer, if Schmidt … Pick out the wrong statement ?Read More...

Steam trap is used to_________________?

A. Condense the steam flowing in the pipeline B. Remove water resulting from partial condensation of steam C. Stop the supply of steam D. None of these...

For heat flow through very thick walled cylinder, use ___________mean radius?

A. Arithmetic B. Logarithmic C. Geometric D. Either A. or C....

An ejector is used to__________________?

A. Increase pressure B. Increase temperature C. Remove condensate D. None of these...