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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The best suited coal for chain or traveling grate stoker boiler is

Coking coal
High sulphur coal
Pulverized coal
Non-coking or free burning coal

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Steam Boilers, Engines, Nozzles and Turbines
In a reaction turbine, when steam flows through the moving blades,

Pressure decreases while velocity increases
Pressure and velocity both increases
Pressure increases while velocity decreases
Pressure and velocity both decreases

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Steam Boilers, Engines, Nozzles and Turbines
The pressure of feed water has to be raised before its entry into the boiler. The pressure is raised by a device known as

Pressure gauge
Feed check valve
Injector
Feed pump

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Steam Boilers, Engines, Nozzles and Turbines
The maximum steam pressure in a Locomotive boiler is limited to

18 MN/m²
0.18 MN/m²
180 MN/m²
1.8 MN/m²

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

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

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Steam Boilers, Engines, Nozzles and Turbines
A turbine is said to have an axial discharge when the steam leaves the blade tip at _________ to the direction of the blade motion.

180°
270°
60°
90°

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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