Heat Transfer
__________ heat exchanger is the most suitable, when the temperature of shell side fluid is much higher than that of tube side.

Three pass, fixed tube sheet
None of these
U-tube
Single pass, fixed tube sheet

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Heat Transfer
Water always boils when its

Saturated vapour pressure equals the external pressure on its surface
Saturated vapour pressure is less than the atmospheric pressure
Temperature reaches 100° C
Vapour pressure equals 76 cm of Hg

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