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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Fire tube boilers are

None of these
Externally fired
Internally as well as externally fired
Internally fired

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Steam Boilers, Engines, Nozzles and Turbines
Rateau turbine is

Pressure-velocity compounded turbine
Simple reaction turbine
Pressure compounded turbine
Velocity compounded turbine

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Steam Boilers, Engines, Nozzles and Turbines
For the same diameter and thickness of tube, a water tube boiler has ________ heating surface as compared to fire tube boiler.

Equal
Less
None of these
More

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Steam Boilers, Engines, Nozzles and Turbines
O₂ content in atmospheric air on weight basis is

0.4
0.23
0.21
0.3

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Steam Boilers, Engines, Nozzles and Turbines
Heating wet steam at constant temperature is heating it at constant

Entropy
Pressure
Enthalpy
Volume

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Steam Boilers, Engines, Nozzles and Turbines
The maximum heat loss is a boiler occurs due to

Moisture in fuel
Dry flue gases
Unburnt carbon
Steam formation

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