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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
One kilowatt-hour energy is equivalent to

1000 J
3600 kW/sec
3600 kJ
360 kJ

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Steam Boilers, Engines, Nozzles and Turbines
The factor of evaporation for all boilers is always

None of these
Greater than unity
Equal to unity
Less than unity

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Steam Boilers, Engines, Nozzles and Turbines
Heating of dry steam above saturation temperature is known as

Enthalpy
Latent heat
Super saturation
Superheating

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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

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

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Steam Boilers, Engines, Nozzles and Turbines
The efficiency of the plant __________ with the mechanical draught.

Remains constant
Increases
Decreases
None of these

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

Supersaturated
Wet
Dry
Saturated

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