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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Adiabatic process is

Constant temperature process
Reversible process
Essentially an isentropic process
Non-heat transfer process

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Steam Boilers, Engines, Nozzles and Turbines
Curtis turbine is a

Velocity compounded turbine
Pressure-velocity compounded turbine
Simple reaction turbine
Pressure compounded turbine

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Steam Boilers, Engines, Nozzles and Turbines
In reaction turbines, the axial thrust is due to

Change in axial velocity
None of these
Both (A) and (B)
Pressure drop across the rotor

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Steam Boilers, Engines, Nozzles and Turbines
The length of Cornish boiler varies from

2 to 4.5 m
3 to 5 m
5 to 7.5 m
7 to 9 m

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Steam Boilers, Engines, Nozzles and Turbines
The high pressure and low pressure cylinders in a Tandem type compound engine are regarded as having cranks

90° to each other
0° to each other
None of these
180° to each other

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Steam Boilers, Engines, Nozzles and Turbines
While steam expands in turbines, theoretically the entropy

Behaves unpredictably
Increases
Decreases
Remains constant

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