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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The critical pressure ratio for gases is

0.528
0.582
0.546
0.577

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Steam Boilers, Engines, Nozzles and Turbines
1 kg.m is equal to

102 Joules
427 Joules
9.81 Joules
None of these

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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

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

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Steam Boilers, Engines, Nozzles and Turbines
The condition of steam in boiler drum is always

Supersaturated
Saturated
Wet
Dry

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Steam Boilers, Engines, Nozzles and Turbines
A vessel into which the steam is exhausted and condensed after doing work in an engine cylinder or turbine is known as

Economiser
Steam condenser
Steam boiler
Steam preheater

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the temperature rise of cooling water to the vacuum temperature minus inlet cooling water temperature is called

Nozzle efficiency
Condenser efficiency
Vacuum efficiency
Boiler efficiency

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