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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
A device used to increase the temperature of saturated steam without raising its pressure, is called

Superheater
Fusible plug
Blow off cock
Stop valve

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Steam Boilers, Engines, Nozzles and Turbines
Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler

Remain unaffected
First increases and then decreases
Decreases
Increases

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Steam Boilers, Engines, Nozzles and Turbines
An economiser is generally placed between

Last superheater or reheater and air preheater
Air preheater and chimney
None of these
Induced draft fan and forced draft fan

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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

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

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Steam Boilers, Engines, Nozzles and Turbines
The flow of steam is supersonic

At the throat of the nozzle
In the convergent portion of the nozzle
At the entrance to the nozzle
In the divergent portion of the nozzle

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following are boiler accessories?

None of these
Superheater
Both (A) and (B)
Economizer

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