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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Cut-off governing of steam engines is a method of controlling the engine output by varying

Pressure of intake steam
Volume of intake steam
Temperature of intake steam
All of these

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Steam Boilers, Engines, Nozzles and Turbines
The dry saturated steam at very high pressure (150200 kg/cm²) when throttled to atmosphere will become

Dry
Wet
Remain dry saturated
Superheated

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Steam Boilers, Engines, Nozzles and Turbines
A turbine is said to have an axial discharge when the steam leaves the blade tip at _________ to the direction of the blade motion.

180°
60°
270°
90°

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Steam Boilers, Engines, Nozzles and Turbines
On Millier chart, the constant pressure lines

Diverge from right to left
Are equally spaced throughout
Diverge from left to right
First rise up and then fall

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Steam Boilers, Engines, Nozzles and Turbines
Cut-off governing as compared to throttle governing is

Less efficient and more economical
More efficient and more economical
Less efficient and less economical
More efficient and less economical

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Steam Boilers, Engines, Nozzles and Turbines
For combustion of a fuel, following is essential

O₂ to support combustion
Correct fuel air ratio
All the three above
Proper ignition temperature

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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