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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The maximum heat loss is a boiler occurs due to

Unburnt carbon
Steam formation
Dry flue gases
Moisture in fuel

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Steam Boilers, Engines, Nozzles and Turbines
The dry saturated steam at very high pressure (150200 kg/cm²) when throttled to atmosphere will become

Superheated
Remain dry saturated
Dry
Wet

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

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

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Steam Boilers, Engines, Nozzles and Turbines
The fire tubes in a Locomotive boiler has __________ diameter.

47.5 mm
5.47 mm
7.45 mm
4.75 mm

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Steam Boilers, Engines, Nozzles and Turbines
Thermal efficiency of a thermal power plant is of the order of

0.45
0.15
0.2
0.3

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Steam Boilers, Engines, Nozzles and Turbines
The high pressure boiler is one, which produces steam at a pressure more than

7580 kg/cm²
Atmospheric pressure
10 kg/cm²
5 kg/cm²

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