In evaporators, lowering the feed temperature_______________?

Related Mcqs:

Pick out the wrong statement ?

A. Heat transfer from a hot body to cold body by the emission of heat waves is called radiation B. Filmwise condensation takes place on non-wettable surfaces C. The boiling point of a solution is affected by liquid head as well as boiling point elevation D. None of these...

‘Duhring’s plot’ is of use in_________________?

A. Extractive distillation B. Evaporation C. Leaching D. Absorption...

At constant temperature, the thermal conductivities of gases _____________ with rise in pressure?

A. Decrease B. Increase C. Remain unchanged D. May increase or decrease; depends on the pressure...

In a co-current double pipe heat exchanger used for condensing saturated steam over the inner tube, if the entrance and exit conditions of the coolant are interchanged, then the rate of condensation will___________________?

A. Increase B. Decrease C. Remain unchanged D. Either increase or decrease; depends on the coolant flow rate...

Pick out the correct statement ?

A. Higher is the temperature of the radiating body, higher is the wavelength of radiation B. Logarithmic mean area is used for calculating the heat flow rate through a thick walled cylinder C. The wavelength corresponding to maximum mono-chromatic emissive power increases with rise in temperature D. Solid angle subtended by the finite surface at … Pick out the correct statement ?Read More...