Fluid Mechanics (FM) SPPU Insem Question Paper Oct 2024

Questions

1. Q1

   1. a)

      Define i) Specific Gravity ii) Specific Volume iii) Vapor pressure iv) Mass Density v) Capillarity vi) Viscosity vii) Surface Tension viii) Specific Weight.

      [8]
   2. b)

      Derive the expression with usual notations for the total pressure and centre of pressure on inclined plane surface.

      [7]
   OR

2. Q2

   1. a)

      Calculate the specific weight, specific mass, specific volume and specific gravity of a liquid having a volume of 6 m 3 and weight 45 kN.

      [5]
   2. b)

      Differentiate between Real Fluid and Ideal Fluid.

      [2]
   3. c)

      A 3.6 m by 1.5 m wide rectangular gate BC is vertical and is hinged at point 0.15 m below the centre of gravity of the gate. The total depth of water is 6.1 m What horizontal force must be applied at the bottom of the gate to the keep the gate closed?

      [8]

3. Q3

   1. a)

      The water is flowing through a tapering pipe having diameters 300 mm and 150 mm at section 1 and 2 respectively. The discharge through the pipe is 42 lit/s. The section 1 is 10 m above datum and section 2 is 6 m above datum. Find the pressure at section 2 if that at section 1 is 401 kN/m 2 .

      [7]
   2. b)

      Derive the continuity equation for three-dimensional flow with usual notations. 2

      [8]
   OR

4. Q4

   1. a)

      Explain in brief with neat sketch : i) Venturimeter ii) Pitot Tube iii) Rotameter. [3+3+2=8]

   2. b)

      This part has equations that don’t show as text. Open the PDF to read it.

      [7]