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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Vacuum for reciprocating steam engines compared to steam turbines is

Equal
Could be more or less depending on the size of plant
Less
More

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Steam Boilers, Engines, Nozzles and Turbines
Blading efficiency is also known as

None of these
Nozzle efficiency
Diagram efficiency
Stage efficiency

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Steam Boilers, Engines, Nozzles and Turbines
Gradually increasing temperature of flue gases at inlet to chimney for given steam outputs is an indication of

Raising of steam temperature
Fouling of heat transfer surfaces
Higher effectiveness of boiler
High calorific value coal being burnt

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Steam Boilers, Engines, Nozzles and Turbines
In a 50% reaction turbine stage, tangential component of absolute velocity at rotor inlet is 537 m/s and the blade velocity is 454 m/s. The power output in kW of steam will be

282 kW
260 kW
302 kW
296 kW

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Steam Boilers, Engines, Nozzles and Turbines
The pressure at which latent heat of vaporisation of water is zero, is

Below atmospheric pressure
100 kg/cm²
1 kg/cm²
225.6 kg/cm²

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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

None of these
Superheater
Stop valve
Blow off cock

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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