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Hydraulic and Fluid Machines - Interview Questions and Answers

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101. The bulk modulus of elasticity
A. has the dimensions of 1/pressure
B. increases with pressure
C. is large when fluid is more compres�sible
D. is independent of pressure and viscosity
E. is directly proportional to flow.
Explanation:
102. Viscosity of water in comparison to mercury is
A. higher
B. lower
C. same
D. higher/lower depending on temperature
E. unpredictable.
Explanation:
103. A fluid in equilibrium can't sustain
A. tensile stress
B. compressive stress
C. shear stress
D. bending stress
E. all of the above.
Explanation:
104. Units of surface tension are
A. energy/unit area
B. distance
C. both of the above
D. it has no units
E. none of the above.
Explanation:
105. The stress-strain relation of the newtoneon fluid is
A. linear
B. parabolic
C. hyperbolic
D. inverse type
E. none of the above.
Explanation:
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