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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
By compounding the expansion of steam in two or more cylinders, the length of stroke

Does not change
Decreases
None of these
Increases

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Steam Boilers, Engines, Nozzles and Turbines
A throttle governed steam engine develops 15 kW with 280 kg per hour of steam and 35 kW with 520 kg per hour of steam. The steam consumption in kg per hour when developing 20 kW will be nearly

210 kg/h
150 kg/h
340 kg/h
280 kg/h

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Steam Boilers, Engines, Nozzles and Turbines
The safety valve on boiler drum compared to safety valve on superheater is set at

Same value
Higher value
Lower/higher depending on steam flow
Lower value

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the work-done on the blades per kg of steam to the total energy supplied per stage per kg of steam is called

Blading efficiency
Stage efficiency
Mechanical efficiency
Nozzle efficiency

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Steam Boilers, Engines, Nozzles and Turbines
Equivalent evaporation is the amount of water evaporated in a boiler from and at

0°C
Room temperature
Saturation temperature at given pressure
100°C

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Steam Boilers, Engines, Nozzles and Turbines
A condenser in a steam power plant

Increases expansion ratio of steam
Reduces temperature of exhaust steam
Reduces back pressure of steam
All of these

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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