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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
If the critical pressure ratio for steam is 0.546, then the steam is initially

Dry saturated steam
Wet steam
Superheated steam
None of these

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Steam Boilers, Engines, Nozzles and Turbines
The fire tubes in a Cochran boiler usually have _________ diameter.

62.5 mm
92.5 mm
72.5 mm
6.25 mm

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Steam Boilers, Engines, Nozzles and Turbines
A vessel into which the steam is exhausted and condensed after doing work in an engine cylinder or turbine is known as

Steam boiler
Economiser
Steam preheater
Steam condenser

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Steam Boilers, Engines, Nozzles and Turbines
Lancashire boiler is of

All of the listed here
Stationary < fire tube type
Horizontal type
Natural circulation type

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Steam Boilers, Engines, Nozzles and Turbines
The artificial draught is produced by

Steam jet
Centrifugal fan
Chimney
Both (A) and (B)

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Steam Boilers, Engines, Nozzles and Turbines
Proximate analysis of fuel is determination of percentage of

Higher calorific value
Lower calorific value
Carbon, hydrogen, nitrogen, sulphur, moisture
Fixed carbon, ash, volatile matter, moisture

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