What is the velocity of steam (in m/sec) at exit across a steam whistl – McqOptions

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1.	What is the velocity of steam (in m/sec) at exit across a steam whistle which is perfectly insulated and does not perform any work and undergoes a drop of 0.2 kJ/kg in enthalpy from entry to exit?
A.	10
B.	20
C.	30
D.	40
Answer» C. 30

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