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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The fire tubes in, a Coarran and Scottish marine boiler are

Vertical
Inclined
Horizontal
Both horizontal and vertical

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the useful heat drop to the isentropic heat drop is called

Boiler efficiency
Condenser efficiency
Vacuum efficiency
Nozzle efficiency

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Steam Boilers, Engines, Nozzles and Turbines
A single acting steam engine produces ___ power than that of double acting steam engine.

Double
Four times
Half
Equal

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Steam Boilers, Engines, Nozzles and Turbines
Green coal, in order to be burnt, must be

Burnt in excess air
Burnt as powder
Heated to its ignition point
Heated sufficiently

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

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

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

0.2
0.15
0.3
0.45

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