A/ Consider A cylindrical titanium wire 3.0 mm in diameter and 2.5x10ʻ mm long. Calculate its elongation when a load of 500 N is applied assume that the deformation is totally elastic. (E for Ti is 107 GPa)

Torsional stress is also a A Axial stress B Shear stress C Bearing stress D) Thermal stress

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Example -1.1- A plate of size 60 cm x 60 cm slides over a plane inclined to the horizontal at an angle of 30°. It is separated from the plane with a film of oil of thickness 1.5 mm. The plate weighs 30kg and slides down with a velocity of 0.25 m/s. Calculate the dynamic viscosity of oil used as lubricant. What would be its kinematic viscosity if the specific gravity of oil is 0.95? 1.5mm 30 130° Fluid

Based on the following data related to screen analysis: Power coal (1000 kg), 20 mesh and thickness of wire 0.2mm. Find the bottom quantity? D(mm) Mass (g) 10 4.75 2.36 1.18 0.6 0.3 0.15 0.08 30 120 150 200 320 150 30 840 kg 160 kg 500 kg 300 kg

Question: Briefly explain how each of the following influences the tensile or yield strength of a semicrystalline polymer and why:               (a)  Deformation by drawing             (b)  Annealing of an undeformed material

Define shear stress and it’s relation with dVx/dy for a Newtonian fluid

Which of the following is not a unit of surface tension? * All choices are units of surface tension. Dynes/cm O N/m O Poise

1. Creep analysis results were obtained for wheat flour dough by applying a constant stress of 50 Pa for 60 s on the sample. The data are given in Table 3. Using the creep compliance data, determine the viscoelastic parameters, G0, G1, μ1, and μ0 of a Burger model Table 3. Deformation of Wheat Flour Dough   Time (s) Deformation 0 0.0060 5 0.0095 10 0.0140 15 0.0160 20 0.0180 25 0.0188 30 0.0195 35 0.0203 40 0.0210 45 0.0218 50 0.0225 55 0.0233 60 0.0240

An axial member consisting of two plates each with a width of wa = 390 mm and a thickness of ta = 12 mm is carrying an axial force of P = 22 kN. The axial member is connected to a column by two bolts (diameter of d= 10 mm) three gusset plates with a width of wg = 280 mm and a thickness of tg = 6 mm. What is the average shear stress in the bolts? What is the maximum bearing stress in the connection? In MPa What is the critical normal stress in the axial member?