Heat Transfer
At what value of Prandtl number, the hydrodynamic and thermal boundary layers of a fluid flowing over a heated plate will be identical?

< 1
1
> 1
None of these

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Heat Transfer
Water always boils when its

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

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