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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The amount of water evaporated from feed water at _________ into dry and saturated steam at 100° C at normal atmospheric pressure is called equivalent evaporation from and at 100° C.

0°C
40°C
60°C
100°C

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Steam Boilers, Engines, Nozzles and Turbines
Parson's reaction turbine is a __________ reaction turbine.

70 percent
60 percent
40 percent
50 percent

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Steam Boilers, Engines, Nozzles and Turbines
A device used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit, is called

Superheater
Blow off cock
None of these
Stop valve

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Steam Boilers, Engines, Nozzles and Turbines
Green coal, in order to be burnt, must be

Heated sufficiently
Burnt as powder
Burnt in excess air
Heated to its ignition point

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Steam Boilers, Engines, Nozzles and Turbines
Curtis turbine is a

Pressure compounded turbine
Velocity compounded turbine
Simple reaction turbine
Pressure-velocity compounded turbine

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Steam Boilers, Engines, Nozzles and Turbines
The diameter of flue tube in a Cornish boiler is _________ that of the shell.

Two-fifth
One-fourth
One-third
Three-fifth

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