SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2
For the following questions answer them individually
What will be the effect on Euler’s crippling load for a column with both ends hinged, if the length of the column is halved?
Which is the CORRECT reason for the 5%-10%oferror in Euler's crippling load, when estimated theoretically?
If a load of 40 KNis applied in a compressive manner on a rod whosecross section is 10 mm x 20 mm. Then whatwill be the compressive stress(in MPa) on the rod?
What will be the thermal stress developed in a rod having a diametre of 4 cm and length of 2 m-.It experiences heating from temperature $$50^\circ C$$ to $$200^\circ C$$. The coefficient of thermal expansion is $$\alpha = 10 \times 10^{-6}/^\circ C$$ and young’s modulus is 250 GPa?
What is the formula for elongation of a conical bar (with length L and self weight W) due toits self weight?
What will be the value of Poisson's ratio, if the elasticity and rigidity of the material is 200 GPa and 66.67 GPa?
