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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
A _________ in a boiler is used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit.

Fusible plug
Blow off cock
Safety valve
Stop valve

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Steam Boilers, Engines, Nozzles and Turbines
In a boiler, the heat is lost

To steam formed by combustion of hydrogen per kg of fuel
In moisture present in the fuel
All of these
To dry flue gases

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Steam Boilers, Engines, Nozzles and Turbines
The temperature of flue gases at air heater outlet should be

Less than wet bulb temperature of flue gases
Above dew point temperature of flue gases
Below dew point temperature of flue gases
100°C

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Steam Boilers, Engines, Nozzles and Turbines
Lancashire boiler is

Stationary fire tube boiler
Internally fired boiler
All of these
Horizontal boiler

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Steam Boilers, Engines, Nozzles and Turbines
The expansion of steam in a nozzle follows

Rankine cycle
Joule cycle
Stirling cycle
Carnot cycle

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Steam Boilers, Engines, Nozzles and Turbines
The purpose of governing in steam turbines is to

Completely balance against end thrust
Reduce the effective heat drop
Reheat the steam and improve its quality
Maintain the speed of the turbine

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