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Steam Boilers, Engines, Nozzles and Turbines

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

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

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Steam Boilers, Engines, Nozzles and Turbines
In a receiver type compound engine, the high pressure and low pressure cylinders

Have common piston rod
Have separate piston rods
Are set in V-arrangement
Are set at 90°

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Steam Boilers, Engines, Nozzles and Turbines
The difference of supersaturated temperature and saturation temperature at that pressure is called

Degree of super-saturation
None of the listed here
Degree of under-cooling
Degree of superheat

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Steam Boilers, Engines, Nozzles and Turbines
The impulse turbine rotor efficiency will have a maximum value of 0.5 cos 2α, where α is the nozzle exit flow angle, if the

Blades are equiangular and frictionless
Blade solidity is 0.65
Blades are equiangular
Blade velocity coefficient is unity

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Steam Boilers, Engines, Nozzles and Turbines
In an impulse reaction turbine, the pressure drops gradually and continuously over

Fixed blades
Both fixed and moving blades
None of these
Moving blades

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Steam Boilers, Engines, Nozzles and Turbines
The specific volume of steam with increase in pressure decreases

Linearly
Rapidly first and then slowly
Slowly first and then rapidly
Inversely

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