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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
There is always some steam left in the clearance space from the previous stroke. This steam left in the clearance space is called

Wet steam
Cushion steam
Superheated steam
Saturated steam

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

0.5
0.9
0.4
0.75

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Steam Boilers, Engines, Nozzles and Turbines
The performance of a boiler is measured by the

Steam produced in kg/kg of fuel burnt
All of the listed here
Steam produced in kg/h
Amount of water evaporated per hour

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Steam Boilers, Engines, Nozzles and Turbines
Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler

Decreases
First increases and then decreases
Increases
Remain unaffected

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Steam Boilers, Engines, Nozzles and Turbines
All steam engines work on

First law of thermodynamics
Second law of thermodynamics
Zeroth law of thermodynamics
None of the listed here

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Steam Boilers, Engines, Nozzles and Turbines
A steam turbine, in which a part of the steam after partial expansion, is used for process heating and the remaining steam is further expanded for power generation, is known as

Impulse turbine
Pass out turbine
Back pressure turbine
Low pressure turbine

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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