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A helical compression spring is used to take the shock. The initial compression of the spring is 30 mm and it is further compressed by 50 mm while absorbing the shock. The spring is to absorb 250 J of energy during the procedure. The spring index will be taken as 6. The spring is made of patend and cold drawn steel wire with ultimate tensile strength of 1500 N/mm2 and modulus of rigidity of 81370 N/mm2 . The permissible shear stress for the spring wire could be taken as 30 % of the ultimate tensile strength. Design the spring.
Draw a single point cutting tool and define its various parts. Also describe the standard anglesof this cutting tool.
Forces working on dam: Let a dam retaining water as illustrated in Figure (a). What are the forces working on it? Solution The forces working on dam are as follows:
Necessity of Tyres To supports the motorcycle load. To provide cushion against shocks. To allow smooth handling of motorcycle. To transmit driving and braking
Determine the maximum shear stress: A beam of triangular cross section of base width 120 mm & height 80 mm is subjected to a shear stress force of 3 kN. Determine the maximum
Q. Show the tensile properties of material? Tensile properties indicate how the material will react to forces being applied in tension. A tensile test is a fundamental mechanic
Evaluate the angle - block impends down the plane: What should be value of the angle shown in the figure so that the motion of the 90N block impends down the plane? The coe
how many links and joint does the automatic tool changer (ATC) mechanism has?
A 54 kg chandelier is suspended 1.5 m below a ceiling by 3 wires, each of which has the similar tension and the similar length of 2.0 m (see the drawing). Find the tension in every
GMAW POWER SOURCE A power source wit h a flat characteristics is almost universally used for GMAW process as it provides self adjustment and stabilisation of the arc. Also it m
The problem: - Deaf blind people have a huge problem when crossing the streets. They always need assistance from a sighted person or a trained dog to cross the street. There i
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