Steam Boilers, Engines, Nozzles and Turbines
The high steam and low water safety valve is used to blow off steam when the

Both (A) and (B)
None of these
Water level in the boiler becomes too low
Steam pressure exceeds the working pressure

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following statement is correct for a compound steam engine?

The temperature range per cylinder is increased, with corresponding increase in condensation
The ratio of expansion is reduced, thus reducing the length of stroke
The cost of the engine, for the same power and economy, is more than that of a simple steam engine
The forces in the working parts are increased as the forces are distributed over more parts

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Steam Boilers, Engines, Nozzles and Turbines
When the inlet pressure of steam is equal to the exit pressure, then

Pressure drops and fluid flows through the nozzle
There is a pressure drop in the nozzle
There is no pressure drop and fluid does not flow through the nozzle
Fluid flows through the nozzle

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