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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Which of the following are boiler accessories?

Both (A) and (B)
Economizer
Superheater
None of these

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Steam Boilers, Engines, Nozzles and Turbines
Hard coke is used in

Thermal power plant
Blast furnace
Domestic use
Cement industry

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Steam Boilers, Engines, Nozzles and Turbines
The diameter of Cornish boiler is of the order of

1.52.5 m
2.53.5 m
23 m
12 m

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

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

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Steam Boilers, Engines, Nozzles and Turbines
The height of chimney in a power plant is governed by

Limitation of construction facilities
Control of pollution
Quantity of flue gases to be handled
The draft to be created

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Steam Boilers, Engines, Nozzles and Turbines
O₂ content in atmospheric air on weight basis is

0.3
0.4
0.23
0.21

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