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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
For combustion of a fuel, following is essential

All the three above
Proper ignition temperature
O₂ to support combustion
Correct fuel air ratio

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Steam Boilers, Engines, Nozzles and Turbines
The velocity of whirl at outlet for an axial discharge turbine is

Minimum
Maximum
Zero
None of these

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Steam Boilers, Engines, Nozzles and Turbines
The forced circulation of water does not take place in

LaMont boiler
Benson boiler
Velox boiler
Lancashire boiler

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Steam Boilers, Engines, Nozzles and Turbines
In case of non-condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is _________ the condenser pressure.

Lower than
Higher than
Equal to
None of these

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Steam Boilers, Engines, Nozzles and Turbines
A safety valve in a locomotive starts leaking. The leaking medium will be

Dry steam
Water
Super heated steam
Wet steam

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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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