Steam Boilers, Engines, Nozzles and Turbines
Steam in water tube boiler as compared to fire tube boiler

Could be raised at fast/slow rate depending on design
Can be raised rapidly
Is raised at slower rate
Is raised at same rate

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Steam Boilers, Engines, Nozzles and Turbines
The function of a piston rod is

To transfer motion from the piston to the cross head
To guide motion of the piston rod and to prevent it from bending
To exhaust steam from the cylinder at proper moment
To convert heat energy of the steam into mechanical work

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