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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
By compounding the expansion of steam in two or more cylinders, the ratio of expansion

Decreases
Increases
None of these
Does not change

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Steam Boilers, Engines, Nozzles and Turbines
In a Woolf type compound engine, the high pressure and low pressure cylinders

Are set in V arrangement
Are set at 90°
Have separate piston rod
Have common piston rod

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Steam Boilers, Engines, Nozzles and Turbines
Over fire burning is the phenomenon of

Supply of excess, air
Fuel bed firing
Supply of excess coal
Burning CO and unburnt in upper zone of furnace by supplying more air

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Steam Boilers, Engines, Nozzles and Turbines
In a reaction turbine when the degree of reaction is zero, then there is

Maximum heat drop in fixed blades
No heat drop in fixed blades
No heat drop in moving blades
Maximum heat drop in moving blades

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Steam Boilers, Engines, Nozzles and Turbines
Latent heat of dry steam at atmospheric pressure is equal to

539 BTU/ lb
427 kcal/ kg
539 kcal/ kg
100 kcal/ kg

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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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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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