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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

Superheater
Steam space
Water space also
Chimney

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Steam Boilers, Engines, Nozzles and Turbines
Which is not correct statement about pulverized fuel firing?

It is the best technique for burning high ash content fuel having low fusion ash
Fuel burns economically
High burning rate is possible
Heat release can be easily controlled

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Steam Boilers, Engines, Nozzles and Turbines
The difference of supersaturated temperature and saturation temperature at that pressure is called

None of the listed here
Degree of super-saturation
Degree of under-cooling
Degree of superheat

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Steam Boilers, Engines, Nozzles and Turbines
Vacuum for reciprocating steam engines compared to steam turbines is

Could be more or less depending on the size of plant
Equal
More
Less

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Steam Boilers, Engines, Nozzles and Turbines
Proximate analysis of fuel is determination of percentage of

Higher calorific value
Fixed carbon, ash, volatile matter, moisture
Carbon, hydrogen, nitrogen, sulphur, moisture
Lower calorific value

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Steam Boilers, Engines, Nozzles and Turbines
The length of Lancashire boiler varies from

5 to 6 m
9 to 10 m
7.25 to 9 m
6 to 7 m

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