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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
For the same diameter and thickness of tube, a water tube boiler has ________ heating surface as compared to fire tube boiler.

None of these
Less
More
Equal

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Steam Boilers, Engines, Nozzles and Turbines
The selection of type and size of a steam boiler depends upon

The fuel and water available
The power required and working pressure
All of these
The geographical position of the power house

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Steam Boilers, Engines, Nozzles and Turbines
The fire tubes in, a Coarran and Scottish marine boiler are

Inclined
Vertical
Both horizontal and vertical
Horizontal

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Steam Boilers, Engines, Nozzles and Turbines
The latent heat of steam at pressures greater than atmospheric in comparison to latent heat at atmospheric pressure is

Less
May be less or more depending on temperature
More
Equal

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Steam Boilers, Engines, Nozzles and Turbines
When the cross-section of a nozzle __________ continuously from entrance to exit, it is called a convergent nozzle.

None of these
Decreases
Remain same
Increases

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Steam Boilers, Engines, Nozzles and Turbines
The specific heat of superheated steam in kcal/kg is generally of the order of

0.8
0.3
0.1
0.5

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