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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
A double acting steam engine with a cylinder diameter of 190 mm and a stroke of 300 mm has a cut-off of 0.35. The expansion ratio for this engine is nearly

6.65
10.05
2.86
1.05

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Steam Boilers, Engines, Nozzles and Turbines
The function of injector used in small steam plants is to

Create vacuum in furnace
Dose chemicals in feed water
Pump feed water
Create vacuum at turbine exhaust

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Steam Boilers, Engines, Nozzles and Turbines
The diameter of superheated tubes in a locomotive boiler is

130 mm
31 mm
230 mm
13 mm

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Steam Boilers, Engines, Nozzles and Turbines
The number of water level indicators in a boiler are generally __________ in number.

One
Two
Four
Three

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Steam Boilers, Engines, Nozzles and Turbines
The flow through a nozzle is regarded as

Constant pressure flow
Isentropic flow
Constant volume flow
Isothermal flow

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Steam Boilers, Engines, Nozzles and Turbines
On Mollier chart, free expansion, or throttling process from high pressure to atmosphere is represented by

Straight inclined line
Vertical straight line
Curved line
Horizontal straight line

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