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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
With increase in load, radiant superheater has

Flat characteristic
Rising characteristic
Drooping characteristic
Linear characteristic

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Steam Boilers, Engines, Nozzles and Turbines
The cylindrical shell of a Lancashire boiler has diameter from

1.75 to 2.75 m
1.5 to 2.5 m
1.25 to 2.25 m
1 to 2 m

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Steam Boilers, Engines, Nozzles and Turbines
Efficiency of a thermal cycle increases by

Both (A) and (B)
Regeneration
Reheating of steam
Cooling of steam

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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
Less
More
None of these

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Steam Boilers, Engines, Nozzles and Turbines
When the speed of the crankshaft is between 100 r.p.m. and 250 r.p.m., the engine said to be a

Medium speed steam engine
None of the listed here
High speed steam engine
Slow speed engine

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Steam Boilers, Engines, Nozzles and Turbines
A fusible plug is fitted in small boilers in order to

Avoid excessive build up of pressure
Avoid explosion
Control steam dome
Extinguish fire if water level in the boiler falls below alarming limit

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