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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The Parsons' reaction turbine has

Only fixed blades
Fixed and moving blades of different shape
Only moving blades
Identical fixed and moving blades

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Steam Boilers, Engines, Nozzles and Turbines
Thermal efficiency of well maintained boiler will be of the order

0.5
0.75
0.9
0.4

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Steam Boilers, Engines, Nozzles and Turbines
1 kg.m is equal to

427 Joules
9.81 Joules
102 Joules
None of these

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Steam Boilers, Engines, Nozzles and Turbines
In a steam condenser, the partial pressure of steam and air are 0.06 bar and 0.007 bar respectively. The condenser pressure is

0.06 bar
0.007 bar
0.067 bar
0.053 bar

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Steam Boilers, Engines, Nozzles and Turbines
The dry saturated steam at very high pressure (150200 kg/cm²) when throttled to atmosphere will become

Wet
Dry
Remain dry saturated
Superheated

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Steam Boilers, Engines, Nozzles and Turbines
Lancashire boiler is used where working pressure and power required are

None of these
High
Moderate
Low

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