Chemical Engineering Basics
Pick out the wrong statement. If the net positive suction head (NPSH) requirement of a pump is not satisfied, then

It will deliver low discharge of liquid
It will not develop sufficient head to raise water
Its efficiency will not be affected
It will be cavitated

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Chemical Engineering Basics
Which of the following is not a characteristic observed in material failure by fatigue fracture ?

Initation of crack occurs on the surface of the machine part
Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface
Plastic deformation of material does not occur
Initiation of crack from below the surface does not occur

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