In a boiler, the heat is lost

Steam Boilers, Engines, Nozzles and Turbines
In a boiler, the heat is lost

To steam formed by combustion of hydrogen per kg of fuel

In moisture present in the fuel

To dry flue gases

All of these

To steam formed by combustion of hydrogen per kg of fuel

In moisture present in the fuel

To dry flue gases

All of these

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Steam Boilers, Engines, Nozzles and Turbines
In a steam engine, superheated steam from the boiler is fed into the steam chest at a pressure of

20 atmospheres

40 atmospheres

10 atmospheres

30 atmospheres

20 atmospheres

40 atmospheres

10 atmospheres

30 atmospheres

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Steam Boilers, Engines, Nozzles and Turbines
The maximum efficiency of a De-Laval turbine is (where α = Nozzle angle)

cot²α

sin²α

cos²α

tan²α

cot²α

sin²α

cos²α

tan²α

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Steam Boilers, Engines, Nozzles and Turbines
The indicated thermal efficiency is defined as the

Ratio of heat equivalent to indicated power to the energy supplied in steam

Product of thermal efficiency and Rankine efficiency

Ratio of thermal efficiency to the Rankine efficiency

Ratio of brake power to the indicated power

Ratio of heat equivalent to indicated power to the energy supplied in steam

Product of thermal efficiency and Rankine efficiency

Ratio of thermal efficiency to the Rankine efficiency

Ratio of brake power to the indicated power

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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

Decreases

Increases

Remain unaffected

First increases and then decreases

Decreases

Increases

Remain unaffected

First increases and then decreases

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Steam Boilers, Engines, Nozzles and Turbines
When the cross-section of a nozzle increases continuously from entrance to exit, it is called a

Convergent nozzle

Convergent-divergent nozzle

Divergent nozzle

None of these

Convergent nozzle

Convergent-divergent nozzle

Divergent nozzle

None of these

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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines In a boiler, the heat is lost

Steam Boilers, Engines, Nozzles and Turbines In a steam engine, superheated steam from the boiler is fed into the steam chest at a pressure of

Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a De-Laval turbine is (where α = Nozzle angle)

Steam Boilers, Engines, Nozzles and Turbines The indicated thermal efficiency is defined as the

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

Steam Boilers, Engines, Nozzles and Turbines When the cross-section of a nozzle increases continuously from entrance to exit, it is called a

Steam Boilers, Engines, Nozzles and Turbines
In a boiler, the heat is lost

Steam Boilers, Engines, Nozzles and Turbines
In a steam engine, superheated steam from the boiler is fed into the steam chest at a pressure of

Steam Boilers, Engines, Nozzles and Turbines
The maximum efficiency of a De-Laval turbine is (where α = Nozzle angle)

Steam Boilers, Engines, Nozzles and Turbines
The indicated thermal efficiency is defined as the

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

Steam Boilers, Engines, Nozzles and Turbines
When the cross-section of a nozzle increases continuously from entrance to exit, it is called a