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WEDGE FRICTION:
Explain how wedge is used for raising heavy loads. Also give principle of it.
Sol.: Principle of wedge: A wedge is small piece of material having two of their opposite faces not parallel. To lift block of weight W, it is pushed by horizontal force P which lifts the block by imparting reaction on the block in direction 1r to meeting surface that is always greater than total downward force applied by block W This will cause resultant force acting in upward direction on block and moves up.
Tolerance Analysis This discusses the importance of assigning tolerances to the dimensions. Tolerance analysis is the process of assigning suitable tolerances. Proper assignme
A straight rod of length L is released on a friction less horizontal floor in a vertical position . As it falls( also slips) , the distance of a point on the rod from the lower end
Applications of seam welding Lap seam welding is used for the manufacture of cans, buckets and water tanks and for welding thin walled large diameter pipes. Mash seam welding
Q. Can you explain the Mobile bed model? Mobile bed models can again be either geometrically similar or vertically exaggerated. Models of the former type permit study of proble
(a) Illustrate all the laws of mechanics? (b) What ate the two limits of limitation on Newtonian mechanic?
a) Round off the numbers 865250 amd 37.46235 to four significant figures and compute Ea, Er, Ep in each case. b) IF u= 4 x 2 y 3 /z 4 and errors in x, y, z be 0.001, determine
Simple Rules FIFO (first in first out) PN j = t aj SPT (shortest processing time) PN j = o j ODD (earliest operation due dates) PN j = t dj EDD (earliest job due
Company level - Safety Organization This is at company level and will straight report to the corporate director. He has to always monitor safety policies of the company and b
Merchants force diagram. State the assumptions made in development of such diagram.
Q. Describe about consumable electrode? This type of electrode is prepared from metal. Its one end is kept in electrode holder and then electric supply is passed through it. Th
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