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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Hard coke is produced by carburization of coal at

950-1100°C
Atmospheric temperature
500-600°C
700-850°C

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Steam Boilers, Engines, Nozzles and Turbines
The pressure velocity compounded impulse turbine allows a bigger pressure drop and hence __________ numbers of stages are required.

None of the listed here
More
Equal
Less

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Steam Boilers, Engines, Nozzles and Turbines
In a reaction turbine when the degree of reaction is zero, then there is

Maximum heat drop in moving blades
Maximum heat drop in fixed blades
No heat drop in moving blades
No heat drop in fixed blades

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Steam Boilers, Engines, Nozzles and Turbines
The air pressure at the fuel bed is reduced below that of atmosphere by means of a fan placed at or near the bottom of the chimney to produce a draught. Such a draught is called

Induced draught
Forced draught
Natural draught
Balanced draught

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Steam Boilers, Engines, Nozzles and Turbines
Film boiling occurs at

Atmospheric pressures
Very low pressure
Very high pressures
Medium pressures

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following boiler is best suited to meet the fluctuating demand of steam?

Lancashire boiler
Babcock and Wilcox boiler
Locomotive boiler
Cornish boiler

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