Mode of heat transfer in which the fluid moves under the influence of changes in fluid pressure produced by external work is called_______________?

Related Mcqs:

Heat flux, as defined in heat flow is analogous to _______________ in electricity flow?

A. Current B. Voltage C. Resistance D. None of these...

Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator ?

A. Long vertical evaporator B. Horizontal tube evaporator C. Agitated film evaporator D. Calandria vertical tube evaporator...

Heat transfer rate described by Fourier’s law will decrease, if the _____________ increases?

A. Thermal conductivity B. Thickness C. Temperature difference D. Heat transfer area...

What is the logarithmic mean of r1 and r2 ?

A. (r1 – r2)/ln(r1/r2) B. (r1 – r2)/ln(r2/r1) C. (r2 – r1)/ln(r1/r2) D. (r1 – r2)/-ln(r1/r2)...

The unit of heat transfer co-efficient is_________________?

A. BTU/hr. ft2°F B. BTU/hr. °F. ft C. BTU/hr. °F D. BTU/hr. ft...