Steam Boilers, Engines, Nozzles and Turbines
The selection of type and size of a steam boiler depends upon

The geographical position of the power house
The fuel and water available
All of these
The power required and working pressure

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Steam Boilers, Engines, Nozzles and Turbines
The function of an eccentric rod is

To convert reciprocating motion of the piston into rotary motion of the crank
To provide simple harmonic motion to the D-slide valve
To convert rotary motion of the crankshaft into to and fro motion of the valve rod
To provide reciprocating motion to the slide valve

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Steam Boilers, Engines, Nozzles and Turbines
For water, at pressures below atmospheric;

Melting point rises slightly and boiling point drops markedly
Melting point drops slightly and boiling point drops slightly
Melting point rises markedly and boiling point drops markedly
Melting point drops slightly and boiling point drops markedly

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