Heat Transfer
Steam traps are provided in steam carrying pipelines to

none of the listed here
release excess steam pressure by bleeding steam.
remove condensate and inert gases
condense steam

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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
Temperature reaches 100° C
Vapour pressure equals 76 cm of Hg

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