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Steam Boilers, Engines, Nozzles and Turbines

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

1 kg/cm
100 kg/cm²
6 kg/cm
17 kg/cm²

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Steam Boilers, Engines, Nozzles and Turbines
Cut-off ratio is the ratio of

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

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of brake power to the indicated power is known as

Mechanical efficiency
Overall efficiency
Brake thermal efficiency
Indicated thermal efficiency

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Steam Boilers, Engines, Nozzles and Turbines
In a boiler, the heat is lost

To steam formed by combustion of hydrogen per kg of fuel
All of these
In moisture present in the fuel
To dry flue gases

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

75
225
115
165

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Steam Boilers, Engines, Nozzles and Turbines
The high pressure and low pressure cylinders in a Woolf type compound engine are regarded as having cranks

90° to each other
0° to each other
None of these
180° to each other

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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