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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
In a glass tube type water indicator for a boiler, one end of the tube is connected to water space and the other end is connected to

Chimney
Steam space
Water space also
Superheater

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Steam Boilers, Engines, Nozzles and Turbines
Which type of boiler can meet rapid changes of load?

Forced circulation type
Horizontal fire tube type
Horizontal water tube type
Vertical fire tube type

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Steam Boilers, Engines, Nozzles and Turbines
The Locomotive boiler has

157 fire tubes and 24 superheated tubes
167 fire tubes and 14 superheated tubes
137 fire tubes and 44 superheated tubes
147 fire tubes and 34 superheated tubes

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Steam Boilers, Engines, Nozzles and Turbines
At very low temperature, the melting and boiling temperatures become equal. This temperature is

273.16°K
373°K
0°K
303°K

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Steam Boilers, Engines, Nozzles and Turbines
The pressure of steam __________ while flowing through a nozzle.

Decreases
Remains constant
Increases
None of these

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Steam Boilers, Engines, Nozzles and Turbines
The crown of the fire box is made hemispherical in order to

Give maximum space
Withstand pressure inside boiler
Give maximum strength
Resist intense heat in fire box

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