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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
On Mollier chart, flow through turbine is represented by

Curved line
Horizontal straight line
Straight inclined line
Vertical straight line

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Steam Boilers, Engines, Nozzles and Turbines
Water boils when its vapor pressure

Equals that of the surroundings
Equals 760 mm of mercury
Equals the pressure of water in the container
Equals to atmospheric pressure

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Steam Boilers, Engines, Nozzles and Turbines
In a throttling process

Steam temperature remains constant
Steam entropy remains constant
Steam enthalpy remains constant
Steam pressure remains constant

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Steam Boilers, Engines, Nozzles and Turbines
In case of non-condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is _________ the condenser pressure.

None of these
Higher than
Equal to
Lower than

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

Four times
Half
Equal
Double

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Steam Boilers, Engines, Nozzles and Turbines
The draught produced by a steam jet issuing from a nozzle placed in the ash-pit under the fire grate of the furnace is called

None of these
Chimney draught
Forced steam jet draught
Induced steam jet draught

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