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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
A device used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit, is called

Superheater
Blow off cock
None of these
Stop valve

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Steam Boilers, Engines, Nozzles and Turbines
The diameter of cylindrical shell of the Lancashire boiler is of the order of

1 to 1.25 m
1 to 1.75 m
2 to 4 m
1.75 to 2.75 m

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Steam Boilers, Engines, Nozzles and Turbines
If a steam sample is nearly in dry condition, then its dryness fraction can be most accurately determined by

Throttling calorimeter
Bucket calorimeter
Combined separating and throttling calorimeter
Separating calorimeter

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Steam Boilers, Engines, Nozzles and Turbines
The bituminous coal is no caking if its carbon content is

90-95%
78-81%
85-90%
81-85%

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Steam Boilers, Engines, Nozzles and Turbines
Cochran boiler is a

Horizontal fire tube boiler
Vertical water tube boiler
Vertical fire tube boiler
Horizontal water tube boiler

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Steam Boilers, Engines, Nozzles and Turbines
On Millier chart, the constant pressure lines

First rise up and then fall
Diverge from left to right
Diverge from right to left
Are equally spaced throughout

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