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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
At very low temperature, the melting and boiling temperatures become equal. This temperature is

0°K
373°K
303°K
273.16°K

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Steam Boilers, Engines, Nozzles and Turbines
In water wall furnace, the heat is transferred to the water walls by

Conduction
Radiation
Radiation and conduction
Convection

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Steam Boilers, Engines, Nozzles and Turbines
De-Laval turbine is a

Impulse-reaction turbine
Simple reaction turbine
None of these
Simple impulse turbine

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Steam Boilers, Engines, Nozzles and Turbines
When the cross-section of a nozzle __________ continuously from entrance to exit, it is called a convergent nozzle.

None of these
Remain same
Increases
Decreases

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

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

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Steam Boilers, Engines, Nozzles and Turbines
In a 50% reaction turbine stage, tangential component of absolute velocity at rotor inlet is 537 m/s and the blade velocity is 454 m/s. The power output in kW of steam will be

282 kW
296 kW
302 kW
260 kW

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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