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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Which of the following is steam dial?

Coking bituminous coal
Pulverized coal
Brown coal
Non-coking bituminous coal

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Steam Boilers, Engines, Nozzles and Turbines
The pressure compounded impulse turbine as compared to velocity compounded turbine require __________ number of stages.

Same
None of these
Less
More

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Steam Boilers, Engines, Nozzles and Turbines
A turbine is said to have an axial discharge when the steam leaves the blade tip at _________ to the direction of the blade motion.

90°
60°
180°
270°

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Steam Boilers, Engines, Nozzles and Turbines
The performance of a boiler is measured by the

Steam produced in kg/kg of fuel burnt
Steam produced in kg/h
All of the listed here
Amount of water evaporated per hour

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Steam Boilers, Engines, Nozzles and Turbines
Clearance ratio is the ratio of

Swept volume to the clearance volume
Clearance volume to the swept volume
Volume at cut-off to the swept volume
Clearance volume to the volume at cut-off

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Steam Boilers, Engines, Nozzles and Turbines
The effect of bleeding is that

Boiler is supplied with hot water
It decreases the power developed by the turbine
All of these
It increases the thermodynamic efficiency of the turbine

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