Steam Boilers, Engines, Nozzles and Turbines
The function of a safety valve is

To measure pressure of steam inside the steam boiler
None of these
To indicate the water level inside the boiler to an observer
To blow off steam when the pressure of steam inside the boiler exceeds the working pressure

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Steam Boilers, Engines, Nozzles and Turbines
The theoretical indicator diagram of a simple steam engine is based upon the assumption that

All of these
Steam is admitted at boiler pressure and exhausted at condenser pressure
The expansion (or compression) of the steam is hyperbolic
There is no pressure drop due to condensation

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Steam Boilers, Engines, Nozzles and Turbines
A packaged boiler is one in which various parts like firing equipment, fans, feed pumps and automatic controls are

Supplied mounted on a single base
Purchased from several parties and packed together at site
Packaged boiler does not exist
Supplied by same manufacturer loose and assembled at site

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