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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
In order to reduce the rotor speed of an impulse turbine, the method employed is

All of these
Velocity compounding
Pressure-velocity compounding
Pressure compounding

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following is steam dial?

Brown coal
Pulverized coal
Non-coking bituminous coal
Coking bituminous coal

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Steam Boilers, Engines, Nozzles and Turbines
The length of Cornish boiler is of the order of

57.5 m
24 m
35 m
79 m

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Steam Boilers, Engines, Nozzles and Turbines
The reheat factor depends upon

Exit pressure
All of these
Turbine stage efficiency
Initial pressure and superheat

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Steam Boilers, Engines, Nozzles and Turbines
The working pressure range for a LaMont boiler is

1 to 15 MN/m²
2.5 to 15 MN/m²
3.5 to 20 MN/m²
0.5 to 10 MN/m²

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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

2.86
1.05
10.05
6.65

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