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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Adiabatic process is

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

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Steam Boilers, Engines, Nozzles and Turbines
The pressure velocity compounded impulse turbine allows a bigger pressure drop and hence __________ numbers of stages are required.

None of the listed here
Less
Equal
More

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Steam Boilers, Engines, Nozzles and Turbines
The supersaturated flow of steam through a nozzle as compared to a stable flow, the available heat drop

Increases
Decreases
Remains the same
Is unpredictable

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the useful heat drop to the isentropic heat drop is called

Condenser efficiency
Nozzle efficiency
Boiler efficiency
Vacuum efficiency

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following statement is correct for steam turbines as compared to reciprocating steam engines?

A steam turbine develops higher speeds
All of these
The efficiency of steam turbine is higher
The steam consumption is less

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Steam Boilers, Engines, Nozzles and Turbines
Water tube boilers are those in which

Flue gases pass through tubes and water around it
Water passes through the tubes and flue gases around it
Change in enthalpy
Work is done during adiabatic expansion

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