Heat Transfer - Study Mode
[#471] Radiation energy is emitted by all the substances, which are above
Correct Answer
(A) 0°K
[#472] The purpose of floating head in a heat exchanger is to
Correct Answer
(A) Avoid buckling of tubes
[#473] Extremely large or small volumes of fluids are generally best routed through the shell side of a shell and tube heat exchanger, because of the
Correct Answer
(B) Flexibility possible in the baffle arrangement
[#474] For flow over a flat plate, the ratio of thermal boundary layer thickness, 'xt' and hydrodynamic boundary layer thickness 'x' is equal to (where, N Pr = Prandtl number)
Correct Answer
(B) $${ ext{N}}_{{ ext{Pr}}}^{frac{1}{3}}$$
[#475] The critical radius 'r' of insulation on a pipe is given by
Correct Answer
(B) $${ ext{r}} = frac{{ ext{k}}}{{ ext{h}}}$$