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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Steam turbines may be classified according to

Direction of steam flow
Number of stages
All of these
Mode of steam action

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Steam Boilers, Engines, Nozzles and Turbines
The fittings mounted on the boiler for its proper and safe functioning is a

Pressure gauge
Water level indicator
All of these
Safety valve

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Steam Boilers, Engines, Nozzles and Turbines
Expansion ratio is the ratio of

Swept volume to the volume at cut-off
Swept volume to the clearance volume
Clearance volume to the swept volume
Volume at cut-off to the swept volume

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

Inclined
None of these
Horizontal
Vertical

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Steam Boilers, Engines, Nozzles and Turbines
100% efficiency of a thermal cycle cannot be achieved because of

It is not possible to achieve 0°K temperature
Leakage
Non availability of ideal substance
Frictional losses

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Steam Boilers, Engines, Nozzles and Turbines
The purpose of governing in steam turbines is to

Reheat the steam and improve its quality
Maintain the speed of the turbine
Completely balance against end thrust
Reduce the effective heat drop

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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