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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The number of water level indicators in a boiler are generally __________ in number.

Four
Two
One
Three

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

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

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Steam Boilers, Engines, Nozzles and Turbines
While steam expands in turbines, theoretically the entropy

Behaves unpredictably
Remains constant
Decreases
Increases

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Steam Boilers, Engines, Nozzles and Turbines
In locomotives, the draught is produced by

Steam jet draught
Induced draft fan
Both combined (A) and (B)
Chimney

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Steam Boilers, Engines, Nozzles and Turbines
If partial pressure of air and steam be ‘pa’ and ‘ps’ respectively in a condenser, then according to Dalton's law, the pressure in condenser is equal to

pa + ps
pa - ps
None of these
ps - pa

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Steam Boilers, Engines, Nozzles and Turbines
A vessel into which the steam is exhausted and condensed after doing work in an engine cylinder or turbine is known as

Steam boiler
Economiser
Steam preheater
Steam condenser

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