Heat Transfer - Study Mode
[#201] In a backward feed multiple effect evaporator
Correct Answer
(B) Feed flows from low pressure to high pressure
[#202] Which type of heat exchanger is preferred for heavy heat loads?
Correct Answer
(C) Series and parallel set of shell and tube
[#203] A steel sphere of radius 0.1 m at 400°K is immersed in an oil at 300°K. If the centre of the sphere reaches 350°K in 20 minutes, how long will it take for a 0.05 m radius steel sphere to reach the same temperature (at the centre) under identical conditions ? Assume that the conductive heat transfer co-efficient is infinitely large.
Correct Answer
(A) 5 minutes
[#204] Boiling point elevation of an ideal solution
Correct Answer
(A) Increases rapidly with temperature rise
[#205] The ratio of velocity head to tube side return loss in case of a multipass shell and tube heat exchanger is
Correct Answer
(D) $$frac{1}{4}$$