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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
On Mollier chart, flow through turbine is represented by

Curved line
Straight inclined line
Vertical straight line
Horizontal straight line

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Steam Boilers, Engines, Nozzles and Turbines
The fire tubes in a Locomotive boiler has __________ diameter.

47.5 mm
4.75 mm
5.47 mm
7.45 mm

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Steam Boilers, Engines, Nozzles and Turbines
Adiabatic process is

Non-heat transfer process
Constant temperature process
Essentially an isentropic process
Reversible process

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Steam Boilers, Engines, Nozzles and Turbines
An economiser is generally placed between

Air preheater and chimney
Induced draft fan and forced draft fan
Last superheater or reheater and air preheater
None of these

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Steam Boilers, Engines, Nozzles and Turbines
A supercritical boiler is one that operates above the pressure and temperature of following values

1 kg/cm² and 100°C
218 kg/cm² abs and 373°C
218 kg/cm² abs and 540°C
100 kg/cm² and 540°C

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Steam Boilers, Engines, Nozzles and Turbines
The difference of supersaturated temperature and saturation temperature at that pressure is called

Degree of superheat
Degree of under-cooling
Degree of super-saturation
None of the listed here

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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