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Steam Boilers, Engines, Nozzles and Turbines

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

Moisture in fuel
Steam formation
Unburnt carbon
Dry flue gases

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Steam Boilers, Engines, Nozzles and Turbines
The fire tubes in, a Coarran and Scottish marine boiler are

Horizontal
Both horizontal and vertical
Vertical
Inclined

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the temperature rise of cooling water to the vacuum temperature minus inlet cooling water temperature is called

Vacuum efficiency
Nozzle efficiency
Boiler efficiency
Condenser efficiency

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Steam Boilers, Engines, Nozzles and Turbines
Blading efficiency is also known as

Stage efficiency
Diagram efficiency
Nozzle efficiency
None of these

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Steam Boilers, Engines, Nozzles and Turbines
The friction present between the steam and the nozzle surfaces reduces the heat drop by

25 to 40%
40 to 60%
15 to 25%
10 to 15%

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Steam Boilers, Engines, Nozzles and Turbines
The critical pressure ratio for initially dry saturated steam is

0.577
0.582
0.546
0.601

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