SSC JE Mechanical Engineering 27th Jan 2018 Shift-2
For the following questions answer them individually
A steel rod whose diameter is 2 cm and is 2 m long experiences change in temperature due to heating. The coefficient of thermal expansion is $$\alpha = 12 \times 10^{-6}/^\circ C$$ and the rod has been restricted in its oriainal posdion The young s modulus is 200 GPa and thermal stress developed is 288 Kipa What is the value change in the temperature ($$^\circ C$$)?
The formula for the Euler's buckling load is given as $$\frac{4 \pi^2 El}{L^2}$$. This is TRUE for which of the following columns.
What is the location of the maximum bending moment from the end B in the beam shown below?
The elongation (mm) in a steel bar having a square cross section of 2.5 mm is subjected to an axial compressive load of 250 kN. If the length of the bar is 4 m and the modulus of elasticity is E = 250 GPa. What is the square cross section?
Determine the axial strain in the cylindrical wall at the mid depth, when the Young's modulus and the Poisson's ratio of the container material is 200 GPa and 0.6 respectively. The axial and the circumferential stress are equal and its value is 20 MPa.
Choose the CORRECT diagram for the shear stress distribution in the hollow shaft along the radius.
A cross-sectional bar of area 700 mm$$^2$$ is subjected to an axial load as shown in the figure below. What is the value stress (MPa) in the section PQ?
