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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The diameter of fire tubes in Cochran boiler is of the order of

8 cm
2 cm
6 cm
12 cm

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Steam Boilers, Engines, Nozzles and Turbines
The diameter of Cornish boiler varies from

1 to 2 m
1.25 to 2.5 m
0.5 to 1 m
2 to 3 m

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Steam Boilers, Engines, Nozzles and Turbines
The diameters of fire tubes and superheater tubes in locomotive boiler are

65.5 mm, 210 mm
24.5 mm, 65 mm
47.5 mm, 130 mm
32.5 mm, 180 mm

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Steam Boilers, Engines, Nozzles and Turbines
The maximum discharge through a chimney occurs when the height of chimney is

Outside temperature is very low
Around 200 meters
Equal to the height of the hot gas column producing draught
Infinitely long

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Steam Boilers, Engines, Nozzles and Turbines
Lancashire boiler is used where working pressure and power required are

None of these
Low
High
Moderate

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Steam Boilers, Engines, Nozzles and Turbines
An economiser is installed in a boiler primarily to

Superheat the steam
Reduce fuel consumption
Increase steam pressure
All of the listed here

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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