Civil Engineering MCQAE Level Civil Engineering
Cavitation in hydraulic machines occurs when local pressure falls below:
Fluid MechanicsFluid Mechanics and HydraulicsHARD
Choose the correct answer
A
critical pressure of steel
B
gauge pressure of 10 m water
C
atmospheric pressure always
D
vapour pressure of liquid
Correct Answer
D. vapour pressure of liquid
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Vapour bubbles form when pressure drops below vapour pressure and collapse in higher pressure zones, causing damage.
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