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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The pressure of reheat steam after passing through reheater compared to inlet condition is

Equal
More
Less
May be more or less depending on capacity of reheater

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

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

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following is a water tube boiler?

Babcock and Wilcox boiler
Locomotive boiler
Cochran boiler
Lancashire boiler

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Steam Boilers, Engines, Nozzles and Turbines
In a De-Laval nozzle expanding superheated steam from 10 bar to 0.1 bar, the pressure at the minimum cross-section (i. e. pressure at throat, p₂) will be

8.2 bar
9.9 bar
5.46 bar
3.3 bar

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Steam Boilers, Engines, Nozzles and Turbines
Steam turbines may be classified according to

Mode of steam action
Number of stages
Direction of steam flow
All of these

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Steam Boilers, Engines, Nozzles and Turbines
The high pressure and low pressure cylinders in a receiver type compound engine are regarded as having cranks

180° to each other
None of these
0° to each other
90° to each other

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