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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Which of the following boiler works on a forced circulation of water?

Loeffler boiler
All of these
Lamont boiler
Benson boiler

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Steam Boilers, Engines, Nozzles and Turbines
The critical pressure at which latent heat of vaporisation is zero is

273 kgf/ cm²
225.65 kgf/ cm²
1 kgf/ cm²
100 kgf/ cm²

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Steam Boilers, Engines, Nozzles and Turbines
The shell diameter of a Locomotive boiler is

2.5 m
1.5 m
1 m
2 m

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

5 to 7.5 m
2 to 4.5 m
3 to 5 m
7 to 9 m

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Steam Boilers, Engines, Nozzles and Turbines
The velocity of flue gases (V) through the chimney under a static draught of (H') metres is given by

V = 2g/H'
V = H'/2g
V = 2g H'
V = 2gH'

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Steam Boilers, Engines, Nozzles and Turbines
Hard coke is used in

Thermal power plant
Cement industry
Domestic use
Blast furnace

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