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(a) A steel bolt 650 mm2 cross-sectional area passes centrally through a copper tube to 1200mm2 cross-sectional area. The tube is 500mm long and closed by rigid washers, which are fastened by the threads on the steel bolt. The nut is now tightened by ¼ of a turn. Evaluate the stress in the bolt and the tube if the pitch of thread is 3 mm. Take :
Es = 2.05 x 105 N/mm2
Ec = 1.1 x 105 N/mm2
(b) Differentiate between ductile and brittle materials. Name any five ductile and brittle materials.
a) The voltage v across a capacitor at time t seconds is given by the following table t: 0 2 4 6 8 v: 150 63 28 12 5.6 Use the method of least square to fit a curve of
A Spring - mass system which is subjected to a harmonic force FCoswt. calculate the response of the system, refer figure Given x (0) = 0.01 m x(0) = 0.04 m/sec w = 30 rad/
Machining Processes In machining processes, also known as Metal cutting or chip forming processes, material is removed from a work piece to get the final shape of the product.
Once vendor drawings are received and piping isometric drawings are prepared, the Mechanical engineer will provide a final stress package to the stress engineer per The stress a
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Define the process of SAW (submerged Arc welding). And also explain its advantages and disadvantages.
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Determine the magnitude and nature of the stresses: A thin spherical hollow steel shell of 400 mm diameter & 5 mm thickness is immersed into a liquid container pressurized to
machine tool derives
Q. Standard for steel pipes? Vendor shall meet or exceed the requirements of the latest edition of the following codes, regulations, and standards except as superseded herein.
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