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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
None of these
Does not change
Increases

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Steam Boilers, Engines, Nozzles and Turbines
Bomb calorimeter is used to determine

Lower calorific value at constant volume
Higher calorific value at constant pressure
Higher calorific value at constant volume
Lower calorific value at constant pressure

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Steam Boilers, Engines, Nozzles and Turbines
The flow through a nozzle is regarded as

Isothermal flow
Constant pressure flow
Constant volume flow
Isentropic flow

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Steam Boilers, Engines, Nozzles and Turbines
In locomotives, the draught is produced by

Both combined (A) and (B)
Chimney
Induced draft fan
Steam jet draught

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Steam Boilers, Engines, Nozzles and Turbines
The Parsons' reaction turbine has

Identical fixed and moving blades
Only moving blades
Only fixed blades
Fixed and moving blades of different shape

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Steam Boilers, Engines, Nozzles and Turbines
An air preheater

All of these
Enables low grade fuel to be burnt
Increases evaporative capacity of the boiler
Increases the efficiency of the boiler

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