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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Calorific value of coal is of the order of

5000-8000 kcal/ kg
800-1200 kcal/ kg
2000-4000 kcal/ kg
200-400 kcal/ kg

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Steam Boilers, Engines, Nozzles and Turbines
The fire tubes in a Cochran boiler are

Inclined
None of these
Vertical
Horizontal

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Steam Boilers, Engines, Nozzles and Turbines
Water and sediment in fuel oil can be removed by

Cooling the oil in the settling tanks
Heating the oil in the settling tanks
Burning the oil
Suspension

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Steam Boilers, Engines, Nozzles and Turbines
Benson boiler requires

Two drums
Three drums
One drum
No drum

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Steam Boilers, Engines, Nozzles and Turbines
Reheating of steam under ideal conditions takes place at constant

Pressure
Entropy
Enthalpy
Temperature

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Steam Boilers, Engines, Nozzles and Turbines
In a steam condenser, the partial pressure of steam and air are 0.06 bar and 0.007 bar respectively. The condenser pressure is

0.053 bar
0.067 bar
0.06 bar
0.007 bar

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