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A steel tube of 30 mm external diameter and 20mm internal diameter encloses a copper rod of 15mm diameter to which it is rigidly joined at each end. If at a temperature of 10o C, there is no longitudinal stress, evaluate the stresses in the rod and the tube when the temperature is raised to 200o C. Take E for steel and copper are 2.1 x 105 N/mm2 and 1x 105 N/mm2 respectively. The value of coefficient of linear expansion for steel and copper is given as 11 x 10-6 per degree C and 18 x 10-6 per degree C respectively.
The cylindrical tank with hemispherical ends shown in Fig. have volatile liquid and its vapor. The liquid density is 800 kg/m3, and its vapor density is negligible. The pressure in
The figure shows a "square cavity flow". In this flow the cavity is filled with a fluid and the lid of the cavity moves with a constant velocity, while the other walls remain stati
Differences between torque and torsion: Give differences between torque and torsion. List a few examples of torsion in the engineering practice. Sol.: When structural or
Carno t Theorem: No heat engine operating in cycle between the two given thermal reservoir, having fixed temperature can be more efficient than reversible engine operating be
Equalit y of Temperature: Two systems are having equal temperature if there are no changes in their properties when they are kept in thermal contact with each other. Zer
Determine the loading on the beam: Shear force diagram for a loaded beam is illustrated in Figure. Determine the loading on the beam & therefore, draw the bending moment diagr
Q. Define Heat for electrical resistance welding? The heat, H for electrical resistance welding is generated by passing a large electrical current ( of the order of 3000 to 100
A rigid bar ABCD is hinged at A and supported by a bronze rod, 2m long, and a steel rod 1m long as shown in figure A load of 80 KN is applied at end B. Determine the stresses in ea
Q. Alloy materials control? All low alloy and high alloy equipment components including fittings, flanges and sections of pipe and all welds shall be individually tested by Ven
All shell and head joints shall be double-welded butt joints with full penetration. In cases where double welding is impractical, the root pass shall be made by the GTAW process.
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