Steam Boilers, Engines, Nozzles and Turbines
In cross compounding, the cylinders are arranged

Side by side and each cylinder has common piston, connecting rod and crank
At 90° and each cylinder has common piston, connecting rod and crank
Side by side and each cylinder has separate piston, connecting rod and crank
At 90° and each cylinder has separate piston, connecting rod and crank

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Steam Boilers, Engines, Nozzles and Turbines
The indicated thermal efficiency is defined as the

Product of thermal efficiency and Rankine efficiency
Ratio of thermal efficiency to the Rankine efficiency
Ratio of brake power to the indicated power
Ratio of heat equivalent to indicated power to the energy supplied in steam

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

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 convert reciprocating motion of the piston into rotary motion of the crank
To provide reciprocating motion to the slide valve

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