Heat Transfer
Steam is routed through the tube in case of a __________ evaporator.

Long tube vertical
Horizontal tube
Basket type
Short tube vertical

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Heat Transfer
Prandtl number is the ratio of

Thermal diffusivity to momentum diffusivity
Thermal diffusivity to mass diffusivity
Momentum diffusivity to thermal diffusivity
Momentum diffusivity to mass diffusivity

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Heat Transfer
Water always boils when its

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

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