Mention the applications of various types of springs.
[3 marks]What is mechanical advantage? Explain it in context of various types of levers.
[4 marks]State the Euler’s formula. What are the assumptions used to derive this formula? Mention the limitations of Euler’s formula.
[7 marks]Write a short note on Standardization.
[3 marks]What is stress concentration? Suggest various remedies of it.
[4 marks]Write a short note on Factor of safety and Preferred numbers.
[7 marks]Design a helical compression spring for a maximum load of 1500 N for a deflection of 25 mm using the value of spring index as 5. The maximum permissible shear stress for spring wire is 420 MPa and modulus of rigidity is 84 kN/mm2.
[7 marks]What is bearing pressure? Explain it with at least one engineering application of the same.
[3 marks]Aseamless spherical shell, 950 mm in diameter and 10 mm thick is being filled with a fluid under pressure until its volume increases by 120 X 103 mm3. Calculate the pressure exerted by the fluid on the shell, taking modulus of elasticity for the material of the shell as 200 KN/ mm2 and Poisson’s ratio as 0.3.
[4 marks]Efficiency of self locking screw is less than 50%, why?
[7 marks]Explain the bolts of uniform strength. Explain methodologies to obtain the uniform strength.
[3 marks]Explain the force analysis for toggle type of screw jack.
[4 marks]Derive the expression for torque required to raise the load in context of power screw.
[7 marks]Explain the use of key. Mention various failures of it.
[3 marks]Explain the procedure to design a cotter in cotter joint during bending failure.
[4 marks]The shaft running at 180 rpm transmit 300 KW Power. The working condition to be satisfy by the shaft are
[7 marks]The shear stress must not exceed 55 MPa (ii) The angle of twist must not be more than 20 on a length of 16d Calculate the diameter of shaft. Take G= 0.85x105 MPa1
[ marks]Differentiate between shaft and Axle.
[3 marks]How to design a frame of Hacksaw blade? Explain with steps.
[4 marks]Explain at least three cases which uses bolted joint with rough sketches. Analyze any one case.
[7 marks]Explain the concept of combine loading by considering a suitable engineering application.
[3 marks]What is shear? Explain various types of it.
[4 marks]Explain the steps of designing knuckle joint. Draw various resisting area during design steps.
[7 marks]What is thin cylinder? Mention its typical uses in engineering field.
[3 marks]Why Rankine’s formula is adopted for all kind of columns?
[4 marks]Explain the design procedure for designing the lever of a lever loaded safety valve.
[7 marks]