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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The forced circulation of water does not take place in

LaMont boiler
Velox boiler
Benson boiler
Lancashire boiler

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Steam Boilers, Engines, Nozzles and Turbines
Expansion ratio is the ratio of

Clearance volume to the swept volume
Volume at cut-off to the swept volume
Swept volume to the clearance volume
Swept volume to the volume at cut-off

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Steam Boilers, Engines, Nozzles and Turbines
In a Woolf type compound engine, the high pressure and low pressure cylinders

Have separate piston rod
Are set at 90°
Are set in V arrangement
Have common piston rod

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Steam Boilers, Engines, Nozzles and Turbines
Willian's law states that the steam consumption per hour provided with a throttled governor is proportional to (where I.P. = Indicated power)

1/(I.P)
(I.P.)²
I.P.
1/(I.P)²

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Steam Boilers, Engines, Nozzles and Turbines
In an impulse turbine, steam expands

Wholly in nozzle
Wholly in blades
None of these
Partly in the nozzle and partly in blades

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Steam Boilers, Engines, Nozzles and Turbines
The cylinder condensation or missing quantity may be reduced by

All of these
Keeping the expansion ratio small in each cylinder
Superheating the steam supplied to the engine cylinder
The efficient steam jacketing of the cylinder walls

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