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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The actual power generated in the engine cylinder is called

Frictional power
Indicated power
None of these
Brake power

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of heat equivalent to brake power to the energy supplied in steam is known as

Overall efficiency
Indicated thermal efficiency
Mechanical efficiency
Brake thermal efficiency

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Steam Boilers, Engines, Nozzles and Turbines
In order to reduce the rotor speed of an impulse turbine, the method employed is

Velocity compounding
Pressure-velocity compounding
Pressure compounding
All of these

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Steam Boilers, Engines, Nozzles and Turbines
Water tube boilers are those in which

Flue gases pass through tubes and water around it
Water passes through the tubes and flue gases around it
Change in enthalpy
Work is done during adiabatic expansion

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the energy required to produce the artificial draught (expressed in meters head or J/kg of flue gas) to the mechanical equivalent of extra heat carried away per kg of flue gases due to natural draught, is known as

Efficiency of the chimney
Power of the boiler
Efficiency of the boiler
Efficiency of the fan

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following varieties of coals is mostly used in steam boilers?

None of the listed here
Non-coking bituminous coal
Brown coal
Peat

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