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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The ratio of the workdone on the blades to the energy supplied to the blades, is called

Gross or stage efficiency
Nozzle efficiency
Blading efficiency
Mechanical efficiency

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Steam Boilers, Engines, Nozzles and Turbines
A safety valve usually employed with stationary boilers is

All of the listed here
Dead weight safety valve
High steam and low water safety valve
Lever safety valve

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

Vertical straight line
Curved line
Horizontal straight line
Straight inclined line

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Steam Boilers, Engines, Nozzles and Turbines
Film boiling occurs at

Very high pressures
Medium pressures
Atmospheric pressures
Very low pressure

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Steam Boilers, Engines, Nozzles and Turbines
Parson's reaction turbine is a __________ reaction turbine.

70 percent
40 percent
50 percent
60 percent

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Steam Boilers, Engines, Nozzles and Turbines
The expansion of steam in a nozzle follows

Carnot cycle
Rankine cycle
Stirling cycle
Joule cycle

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