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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
A condenser where circulating water flows through tubes which are surrounded by steam, in known as

Evaporative condenser
Surface condenser
Barometric condenser
Jet condenser

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

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

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Steam Boilers, Engines, Nozzles and Turbines
In a reaction turbine, when steam flows through the moving blades,

Pressure decreases while velocity increases
Pressure and velocity both decreases
Pressure increases while velocity decreases
Pressure and velocity both increases

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Steam Boilers, Engines, Nozzles and Turbines
The coal requirement per kW hour generation in the thermal power plant is of the order of

0.6 to 0.8 kg
0.1 to 0.2 kg
1.0 to 1.5 kg
0.2 to 0.4 kg

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Steam Boilers, Engines, Nozzles and Turbines
The high pressure and low pressure cylinders in a Tandem type compound engine are regarded as having cranks

None of these
180° to each other
0° to each other
90° to each other

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

None of these
Equal to
Higher than
Lower than

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