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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.
Corollaries of first law of thermodynamics
FRICTION: you have learnt laws of friction and problems involving dry friction. The relative sliding motion of one body on another body is resisted by forces called as frictio
(a) Draw a single point cutting tool and label clearly the several parts of it. Illustrate them in brief. (b) What are the several factors affecting tool life ? (c) List char
Produce as individuals a single tab Excel spreadsheet which shows a rough initial design for a water treatment plant taking 15MLD of water with 100 mg/l SS from a lake at 750mAOD,
Find out the average resistance of the ground: In a construction of pile-driving for building, a pile driver of mass 25 kg freely drops through a height of 3 metre on the top
SAFETY IN TIG WELDING-Gaseous and Metal Fumes Hazards The major toxic gases associated in TIG welding are ozone, nitrogen dioxide and phosgene gas. Metal fumes are also produced
Open belt drive: An open belt drive connects the two pulleys 120cm and 50cm diameter on parallel shafts which are apart 4m. The maximum tension in belt is 1855.3N. Coefficien
Q. Illustrate process of Radiographic Examination? Radiographic examination of welded joints shall be performed when required by the Code or additionally when specified in this
parallel force s example
how to determine proper the depth of cut for the tool if the drill is made of HSS and the work piece is made of alluminume alloy?
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