Which of the following statements is correct for an ideal rocket? – McqOptions

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1.	Which of the following statements is correct for an ideal rocket?
A.	All kinds of frictional effects are not present, but the boundary layer cannot be neglected
B.	All discontinuities are not present, but shock waves are allowable
C.	Propellant flow is steady but constant
D.	The expansion of the working fluid is steady, but need not be uniform
Answer» D. The expansion of the working fluid is steady, but need not be uniform

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