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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
In a velocity compounded impulse turbine, when steam flows through the second row of moving blades,

Velocity remains constant
Pressure remains constant
Velocity decreases
Velocity increases

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Steam Boilers, Engines, Nozzles and Turbines
Thermal efficiency of well maintained boiler will be of the order

0.4
0.9
0.75
0.5

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Steam Boilers, Engines, Nozzles and Turbines
The discharge is __________ at critical pressure.

Maximum
None of these
Minimum
Zero

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Steam Boilers, Engines, Nozzles and Turbines
A closed vessel made of steel and used for the generation of steam is called a

Steam injector
Steam boiler
Steam condenser
Steam turbine

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Steam Boilers, Engines, Nozzles and Turbines
Caking coals are those which

Show little or no fusing action
Burn freely
Form lumps or masses of coke
Burn completely

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Steam Boilers, Engines, Nozzles and Turbines
When steam after doing work in the cylinder passes into a condenser, the engine is said to be a

Slow speed engine
Non-condensing steam engine
Vertical steam engine
Condensing steam engine

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