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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
With increase in load, radiant superheater has

Linear characteristic
Rising characteristic
Flat characteristic
Drooping characteristic

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Steam Boilers, Engines, Nozzles and Turbines
The condition of steam in boiler drum is always

Dry
Wet
Supersaturated
Saturated

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following is steam dial?

Pulverized coal
Non-coking bituminous coal
Coking bituminous coal
Brown coal

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Steam Boilers, Engines, Nozzles and Turbines
All steam engines work on

Second law of thermodynamics
First law of thermodynamics
Zeroth law of thermodynamics
None of the listed here

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following is correct? (Where pa = Actual mean effective pressure, pm = Theoretical mean effective pressure, and K = Diagram factor)

pa = pm × K
pa = pm + K
pa = K/pm
pa = pm/K

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Steam Boilers, Engines, Nozzles and Turbines
The critical pressure ratio for initially dry saturated steam is

0.601
0.582
0.577
0.546

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