Steam Boilers, Engines, Nozzles and Turbines
Water boils when its vapor pressure

Equals 760 mm of mercury
Equals the pressure of water in the container
Equals to atmospheric pressure
Equals that of the surroundings

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Steam Boilers, Engines, Nozzles and Turbines
A nozzle is said to be a convergent nozzle

None of these
When the cross-section of the nozzle decreases continuously from entrance to exit
When the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit
When the cross-section of the nozzle increases continuously from entrance to exit

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