'A fluid is at rest' means that

1.	'A fluid is at rest' means that
A.	it has zero normal stress and non-zero shear stress
B.	it has non-zero normal stress and zero shear stress
C.	it has non-zero normal stress and shear stress
D.	it has zero normal stress and zero shear stress
Answer» C. it has non-zero normal stress and shear stress

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'A fluid is at rest' means that

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