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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The forced circulation of water does not take place in

LaMont boiler
Lancashire boiler
Benson boiler
Velox boiler

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Steam Boilers, Engines, Nozzles and Turbines
The diameter of fire tube of Cornish boiler compared to its shell is

One fifth
One half
One fourth
One third

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Steam Boilers, Engines, Nozzles and Turbines
Willian’s line follows the law (where b = A constant representing the shape of the Willian’s line, a = Another constant i.e. no load consumption per hour, I.P. = Indicated power, and m = Steam consumption per hour)

I.P. = a × m + b
m = a + b × I.P.
m = (b/I.P.) - a
I.P. = b × m + a

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Steam Boilers, Engines, Nozzles and Turbines
The water tubes in a simple vertical boiler are

Vertical
Horizontal
None of the listed here
Inclined

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Steam Boilers, Engines, Nozzles and Turbines
One kg of steam sample contains 0.8 kg dry steam? Its dryness fraction is

0.6
0.2
1
0.8

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Steam Boilers, Engines, Nozzles and Turbines
An economiser _________ the steam raising capacity of a boiler.

Has no effect on
Increases
None of these
Decreases

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