In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be

Steam Boilers, Engines, Nozzles and Turbines
In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be

320/3 m/s

640/3 m/s

640 m/s

160/3 m/s

320/3 m/s

640/3 m/s

640 m/s

160/3 m/s

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

None of these

0° to each other

180° to each other

90° to each other

None of these

0° to each other

180° to each other

90° to each other

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Steam Boilers, Engines, Nozzles and Turbines
In a reaction turbine, when steam flows through the fixed blades,

Pressure and velocity both increases

Pressure and velocity both decreases

Pressure decreases while velocity increases

Pressure increases while velocity decreases

Pressure and velocity both increases

Pressure and velocity both decreases

Pressure decreases while velocity increases

Pressure increases while velocity decreases

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Steam Boilers, Engines, Nozzles and Turbines
In locomotive boiler, maximum steam pressure is limited to

10 kg/cm²

1 kg/cm²

5 kg/cm²

18 kg/cm²

10 kg/cm²

1 kg/cm²

5 kg/cm²

18 kg/cm²

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Steam Boilers, Engines, Nozzles and Turbines
De-Laval turbines are mostly used

For small power purposes and high speeds

For small power purposes and low speeds

For large power purposes

Where low speeds are required

For small power purposes and high speeds

For small power purposes and low speeds

For large power purposes

Where low speeds are required

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Steam Boilers, Engines, Nozzles and Turbines
An air preheater

Increases the efficiency of the boiler

Increases evaporative capacity of the boiler

Enables low grade fuel to be burnt

All of these

Increases the efficiency of the boiler

Increases evaporative capacity of the boiler

Enables low grade fuel to be burnt

All of these

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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be

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

Steam Boilers, Engines, Nozzles and Turbines In a reaction turbine, when steam flows through the fixed blades,

Steam Boilers, Engines, Nozzles and Turbines In locomotive boiler, maximum steam pressure is limited to

Steam Boilers, Engines, Nozzles and Turbines De-Laval turbines are mostly used

Steam Boilers, Engines, Nozzles and Turbines An air preheater

Steam Boilers, Engines, Nozzles and Turbines
In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be

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

Steam Boilers, Engines, Nozzles and Turbines
In a reaction turbine, when steam flows through the fixed blades,

Steam Boilers, Engines, Nozzles and Turbines
In locomotive boiler, maximum steam pressure is limited to

Steam Boilers, Engines, Nozzles and Turbines
De-Laval turbines are mostly used

Steam Boilers, Engines, Nozzles and Turbines
An air preheater