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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Which of the following boilers is best suited to meet fluctuating demands?

Cochran
Babcock and Wilcox
Lancashire
Locomotive

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Steam Boilers, Engines, Nozzles and Turbines
A fusible plug is fitted in small boilers in order to

Avoid excessive build up of pressure
Control steam dome
Extinguish fire if water level in the boiler falls below alarming limit
Avoid explosion

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Steam Boilers, Engines, Nozzles and Turbines
The water tubes in a Babcock and Wilcox boiler are

Vertical
Inclined
Horizontal
Horizontal and inclined

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Steam Boilers, Engines, Nozzles and Turbines
The density of supersaturated steam is about __________ that of the ordinary saturated vapor at the corresponding pressure.

Same as
2 times
8 times
4 times

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following is not a boiler mounting?

Blow off cock
Fusible plug
Economiser
Feed check valve

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

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

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