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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Which of the following is a water tube boiler?

Cochran boiler
Lancashire boiler
Locomotive boiler
Babcock and Wilcox boiler

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Steam Boilers, Engines, Nozzles and Turbines
The water tubes in a Babcock and Wilcox boiler are

Horizontal and inclined
Inclined
Vertical
Horizontal

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Steam Boilers, Engines, Nozzles and Turbines
Which is not correct statement about the function of furnace?

Separate ash from coal
To provide proper conditions for continuous complete combustion
Mix fuel with air and ignite
Maintain heat supply to prepare and ignite the incoming fuel

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Steam Boilers, Engines, Nozzles and Turbines
The major axis of elliptical manholes on the shell should be provided

Anywhere
Longitudinally
Circumferentially
On dished end

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Steam Boilers, Engines, Nozzles and Turbines
The diameter of superheated tubes in a locomotive boiler is

31 mm
130 mm
13 mm
230 mm

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Steam Boilers, Engines, Nozzles and Turbines
When the cross-section of a nozzle __________ continuously from entrance to exit, it is called a convergent nozzle.

None of these
Decreases
Increases
Remain same

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