πŸ“Š Hydraulics and Fluid Mechanics
Q. Bulk modulus of a fluid is the ratio of
  • (A) shear stress to shear strain
  • (B) increase in volume to the viscosity of fluid
  • (C) increase in pressure to the volumetric strain
  • (D) critical veloity to the viscosity of fluid
πŸ’¬ Discuss
βœ… Correct Answer: (C) increase in pressure to the volumetric strain
πŸ“Š Hydraulics and Fluid Mechanics
Q. The tangential velocity of the water element having a free vortex is
  • (A) directly proportional to its distance from the centre
  • (B) inversely proportional to its distance from the centre
  • (C) directly proportional to its (distance)2 from the centre
  • (D) inversely proportional to its (distance)2 from the centre
πŸ’¬ Discuss
βœ… Correct Answer: (B) inversely proportional to its distance from the centre
πŸ“Š Hydraulics and Fluid Mechanics
Q. When a cylindrical vessel containing liquid is revolved, the surface of the liquid takes the shape of
  • (A) a triangle
  • (B) a paraboloid
  • (C) an ellipse
  • (D) none of these
πŸ’¬ Discuss
βœ… Correct Answer: (B) a paraboloid
πŸ“Š Hydraulics and Fluid Mechanics
Q. The vlow in a pipe is neither laminar nor turbulent when Reynold number is
  • (A) less than 2000
  • (B) between 2000 and 2800
  • (C) more than 2800
  • (D) none of these
πŸ’¬ Discuss
βœ… Correct Answer: (B) between 2000 and 2800
πŸ“Š Hydraulics and Fluid Mechanics
Q. When the corfficient of discharge (Cd) is 0.623, then the general equation for discharge over a rectangular weir is
  • (A) 1.84 (L-0.1 nH) H3/2
  • (B) 1.84 (L-nH) H2
  • (C) 1.84 (L-0.1 nH) H5/2
  • (D) 1.84 (L-nH) H3
πŸ’¬ Discuss
βœ… Correct Answer: (A) 1.84 (L-0.1 nH) H3/2

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