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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The difference of supersaturated temperature and saturation temperature at that pressure is called

None of the listed here
Degree of superheat
Degree of super-saturation
Degree of under-cooling

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Steam Boilers, Engines, Nozzles and Turbines
Relative percentage of heat absorbed through the heat transfer of(i) Furnace water wall(ii) Boiler tank(iii) Superheater(iv) Economizer(v) Air-heater of a typical boiler of 200 MW capacity would be of the order of

20 : 48 : 7 : 15 : 10
48 : 20 : 15 : 7 : 10
7 : 15 : 20 : 10 : 48
10 : 7 : 15 : 20 : 48

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Steam Boilers, Engines, Nozzles and Turbines
The chimney draught varies with

Climatic conditions
Height of chimney
Temperature of furnace gases
All of these

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Steam Boilers, Engines, Nozzles and Turbines
Relative percentage of heat absorbed through the heat transfer of (i) Furnace water wall (ii) Boiler tank (iii) Superheater (iv) Economizer (v) Air-heater of a typical boiler of 200 MW capacity would be of the order of

10 : 7 : 15 : 20 : 48
48 : 20 : 15 : 7 : 10
20 : 48 : 7 : 15 : 10
7 : 15 : 20 : 10 : 48

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Steam Boilers, Engines, Nozzles and Turbines
Multi-stage steam turbines are of the

Reaction type
Velocity compounded type
Pressure compounded type
All of these

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Steam Boilers, Engines, Nozzles and Turbines
In a reaction turbine when the degree of reaction is zero, then there is

Maximum heat drop in fixed blades
No heat drop in moving blades
Maximum heat drop in moving blades
No heat drop in fixed blades

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