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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The diameter of internal flue tubes of a Lancashire boiler is about ___ that of its shell.

One-third
One-half
Two-fifth
One-fourth

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Steam Boilers, Engines, Nozzles and Turbines
Fire tube boilers are limited to a maximum working pressure of

170 MN/m²
17 MN/m²
0.17 MN/m²
1.7 MN/m²

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Steam Boilers, Engines, Nozzles and Turbines
The latent heat of steam with increase of pressure

Increases
Behaves unpredictably
Decreases
Remain same

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Steam Boilers, Engines, Nozzles and Turbines
The action of steam in a steam turbine is

Static
Neither static nor dynamic
Dynamic
Static and dynamic

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Steam Boilers, Engines, Nozzles and Turbines
A device used in a boiler to control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required, is known as

Superheater
Stop valve
Blow off cock
Fusible plug

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Steam Boilers, Engines, Nozzles and Turbines
The draught produced by a steam jet issuing from a nozzle placed in the chimney is called

Chimney draught
Forced steam jet draught
None of these
Induced steam jet draught

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