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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Hygrometry deals with the

Temperature of air
Hygroscopic substances
Water vapor in air
Pressure of air

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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
High burning rate is possible
Heat release can be easily controlled
Fuel burns economically

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Steam Boilers, Engines, Nozzles and Turbines
The condition of steam in boiler drum is always

Wet
Dry
Supersaturated
Saturated

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

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

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Steam Boilers, Engines, Nozzles and Turbines
O₂ content in atmospheric air on volume basis is

0.4
0.23
0.21
0.3

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Steam Boilers, Engines, Nozzles and Turbines
In locomotive boiler, maximum steam pressure is limited to

10 kg/cm²
5 kg/cm²
18 kg/cm²
1 kg/cm²

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