The rate of heat transfer is a product of overall heat transfer co-efficient, the difference in temperature and the___________________?

Related Mcqs:

The non-dimensional temperature gradient in a liquid at the wall of a pipe is the ____________________?

A. Heat flux B. Nusselt number C. Prandtl number D. Schmidt number...

Indirect contact heat exchangers are preferred over direct contact heat exchangers, because_________________?

A. Heat transfer co-efficient are high B. There is no risk of contamination C. There is no mist formation D. Cost of equipment is lower...

Which of the following has maximum thermal conductivity ?

A. Iron B. Coal C. Nitrogen D. Tar...

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

A. Wavelength of radiation B. Surface temperature of the body C. Nature of the surface D. Shape and porosity of the body...

Condensing film co-efficient for steam on horizontal tubes ranges from 5000 to 15000 Kcal/hr.m2.°C. Condensation of vapor is carried out inside the tube in a shell and tube heat exchanger, when the_________________?

A. Higher condensing film co-efficient is desired B. Condensate is corrosive in nature C. Lower pressure drop through the exchanger is desired D. Temperature of the incoming vapor is very high...