LAB MANUAL

Sub Code: 12035

I Mechanics of Materials Lab

1. Test on Ductile Materials:
   Finding Young’s Modulus of Elasticity, yield points, percentage elongation and percentage reduction in area, stress strain diagram plotting, tests on mild steel and cast iron.
   (Equipment : UTM )
2. Hardness Test:
   Determination of Rockwell’s Hardness Number for various materials like mild steel, high carbon steel, brass, copper and aluminium.
   (Equipment : Rockwell’s Hardness Testing Machine)
3. Torsion test:
   Torsion test on mild steel – relation between torque and angle of twist-determination of shear modulus-determination of elastic constants for mild steel.
   (Equipment : Torsion testing machine)
4. Bending and deflection tests:
   Determination of Young’s Modulus for steel by deflection test.
   (Equipment : Deflection testing arrangement )
5. Impact test:
   Finding the resistance of materials to impact loads by Izod test or Charpy test.
   (Equipment: Impact testing machine)
6. Tests on springs of circular section:
   Determination of modulus of rigidity, strain energy, shear stress by load deflection method-Comparison and tension test (Closed coil spring only)
   (Equipment: Tension testing arrangements)
7. Shear test:
   Shear test on M.S. bar
   (Equipment: Shear testing machine)

II Fluid Mechanics Lab

1. Verifying the Bernoulli’s Theorem
   (Equipment: The Bernoulli’s Apparatus)
2. Determination of Coefficient of discharge of a Venturimeter (or) Orifice meter.
   (Equipment: A Centrifugal pump having the discharge line with Venturimeter or Orifice meter arrangement)
3. Determination of the Friction Factor in a Pipe
   (Equipment: An arrangement to find friction factor)
4. Performance test on a reciprocating pump and draw the characteristic curves.
   (Equipment: A reciprocating pump with an arrangement for collecting data to find out the efficiency and plot the characteristic curves)
5. Performance test on a centrifugal pump and draw the characteristic curves.
   (Equipment: A centrifugal pump with an arrangement for collecting data to find out the efficiency and plot the characteristic curves)
6. Performance test on an impulse turbine
   (Equipment: An impulse turbine with an arrangement for collecting data to find out the efficiency)
7. Performance test on a reaction turbine
   (Equipment: A reaction turbine with an arrangement for collecting data to find out the efficiency)
8. Determination of Coefficient of discharge of a small orifice (or) an external mouthpiece by constant head method.
   (Equipment: An open tank fitted with a small orifice (or) an external mouthpiece and a collecting tank with piezometer)
9. Determination of Coefficient of discharge of a small orifice (or) an external mouthpiece by variable head method.
   (Equipment: An open tank fitted with a small orifice (or) an external mouthpiece and a collecting tank with piezometer)
10. Making a suitable Pneumatic (or) Hydraulic circuit connection with DCVS, flow control valve and check valve to show the reciprocating motion of a double acting cylinder with metering-in control circuit.
    (Equipment: Either Pneumatic trainer kit with air compressor (or) Hydraulic trainer kit with hydraulic power pack)
11. Making a suitable Pneumatic (or) Hydraulic circuit connection with DCVS, flow control valve and check valve to show the reciprocating motion of a double acting cylinder with metering-out control circuit.
    (Equipment: Either Pneumatic trainer kit with air compressor (or) Hydraulic trainer kit with hydraulic power pack)