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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
An economiser _________ the steam raising capacity of a boiler.

Decreases
None of these
Increases
Has no effect on

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Steam Boilers, Engines, Nozzles and Turbines
Steam in water tube boiler as compared to fire tube boiler

Could be raised at fast/slow rate depending on design
Can be raised rapidly
Is raised at same rate
Is raised at slower rate

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Steam Boilers, Engines, Nozzles and Turbines
In turbines, the fluid undergoes a continuous steady flow process and the speed of flow is

High
Very low
Very high
Low

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Steam Boilers, Engines, Nozzles and Turbines
The numbers of fire tubes in a Cochran boiler are

115
75
225
165

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Steam Boilers, Engines, Nozzles and Turbines
The steam temperature with increase in load in case of a boiler fitted with radiation superheater

Decreases
First increases and then decreases
Remain unaffected
Increases

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Steam Boilers, Engines, Nozzles and Turbines
Fire tube boilers are limited to a maximum design working pressure of

1 kg/cm
6 kg/cm
17 kg/cm²
100 kg/cm²

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