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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The friction present between the steam and the nozzle surfaces reduces the heat drop by

40 to 60%
10 to 15%
25 to 40%
15 to 25%

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Steam Boilers, Engines, Nozzles and Turbines
The size of a boiler drum in pulverized fuel fired boiler, as its size and capacity, (steam pressure and flow ratings) increase

Increases/decreases depending on steam temperature requirements
Remains unchanged
Decreases
Increases

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Steam Boilers, Engines, Nozzles and Turbines
Lancashire boiler has __________ internal flue tubes.

Four
One
Three
Two

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

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

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Steam Boilers, Engines, Nozzles and Turbines
The shell diameter and length of locomotive boiler are

1 m, 4 m
1.5 m, 4 m
1.5 m, 6 m
2 m, 4 m

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Steam Boilers, Engines, Nozzles and Turbines
The device attached to the steam chest for preventing explosions due to excessive internal pressure of steam is called

Safety valve
Pressure gauge
Fusible plug
Water level indicator

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