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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
An air preheater is installed

Before the superheater
Between the economiser and chimney
Before the economiser
None of these

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Steam Boilers, Engines, Nozzles and Turbines
Sublimation region is the region where

Solid and liquid phases are in equilibrium
Liquid and vapor phases are in equilibrium
Solid and vapor phases are in equilibrium
Solid, liquid and vapor phases are in equilibrium

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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
Separating calorimeter
Bucket calorimeter
Combined separating and throttling calorimeter

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Steam Boilers, Engines, Nozzles and Turbines
The compounding of turbines is done in order to

All of these
Reduce exit losses
Reduce speed of rotor
Improve efficiency

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

None of these
Babcock and Wilcox boiler
Lancashire boiler
Yarrow boiler

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Steam Boilers, Engines, Nozzles and Turbines
The selection of type and size of a steam boiler depends upon

All of these
The power required and working pressure
The geographical position of the power house
The fuel and water available

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