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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 circumferential fin rectangular profile is constructed of Cu and surrounds a tube having a diameter of 1.25 cm. The fin length is 6 mm and its thickness is 0.3 mm. The fin is ex
In an epicyclic gear train, the internal wheels B and A and compound wheels C and D rotate independently about axis O. The wheels E and F rotate on pins fixed to the arm G. E gear
The Specifications for use on a project will be as defined in the ‘Project Execution Plan'. The specification requirements will be clarified in the Engineering Estimate or at the
(a) Illustrate the First Law of Thermodynamics for a closed system undergoing a cycle. (b) A piston and cylinder machine contains a fluid system which passes through a complete
SURFACE HARDENING: In many conditions surface hardening instead of throughout hardening only is enough to serve the reasons. Gears are illustrations. Surface hardening is atta
STEP S FOR SOLVING PROBLEM FOR FINDING POWER: 1. Use formula stress (s) = force (Maximum Tension)/Area Where; Area = b.t that is, Tmax = σ.b.t 2. Unit mass (m) = r.b.t.
Necessity of Brakes To stop a vehicle in normal as well as emergency conditions. To slow down the speed to turn, pass hurdles etc.
Draw the bending moment and shear force diagram for the following cases : a) A cantilever beam of length (L) carrying a Point load (W)at its free end. b) A simply supported b
SURFACE MODELING: The process of modeling is built much easier for a mathematical description of an object or at least on a part of the object might be applied. Surfaces might
general characteristic of bulk deformation and different process and corresponding product properties
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