In a cross
compound steam engine ________.
two cylinders
are centered on the same piston rod, the L. P. cylinder being placed nearest
the crankshaft
two cylinders
are set at 900
none of these
●In a cross
compounded steam engine one high and one low pressure cylinder are set side by
side, driving the same shaft and cranks being set at
●In the
compound engine, high-pressure steam from the boiler first expands in a
high-pressure (HP) cylinder and then enters one or more subsequent lower
pressure (LP) cylinders.
●The complete
expansion of the steam occurs across multiple cylinders and, as there is less
expansion in each cylinder, less heat is lost by the steam in each. This
reduces the magnitude of cylinder heating and cooling, making higher expansion
ratios practical and increasing the efficiency of the engine.
Hence, the correct option is (A).
&Key Points:-
A compound
engine is an engine that has more than one stage for recovering
energy from the same working fluid, with the exhaust from the first stage
passing through the second stage and in some cases then on to another
subsequent stage or even stages.
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