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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
By compounding the expansion of steam in two or more cylinders, the length of stroke

Decreases
Does not change
Increases
None of these

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Steam Boilers, Engines, Nozzles and Turbines
Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler

Increases
Remain unaffected
Decreases
First increases and then decreases

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Steam Boilers, Engines, Nozzles and Turbines
Alkaline pyrogallate is used in Orsat's apparatus for absorption of

O₂
CO
N₂
CO₂

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Steam Boilers, Engines, Nozzles and Turbines
A device in which some portion of waste heat of flue gases is recovered to heat the air before it passes to the furnace for combustion purpose, is known as

Economizer
Air-preheater
Superheater
Injector

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

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

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Steam Boilers, Engines, Nozzles and Turbines
In locomotive boiler, maximum steam pressure is limited to

18 kg/cm²
1 kg/cm²
5 kg/cm²
10 kg/cm²

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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