Steam Boilers, Engines, Nozzles and Turbines
In a reaction turbine when the degree of reaction is zero, then there is

Maximum heat drop in fixed blades
No heat drop in moving blades
No heat drop in fixed blades
Maximum heat drop in moving blades

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Steam Boilers, Engines, Nozzles and Turbines
Locomotive boiler is a

Single tube, vertical, externally fired and stationary boiler
Multi-tubular, horizontal, externally fired and stationary boiler
Single tube, horizontal, internally fired and stationary boiler
Multi-tubular, horizontal, internally fired and mobile boiler

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