SSC JE Mechanical Engineering 25th Jan 2018 Shift-2
For the following questions answer them individually
SSC JE Mechanical Engineering 25th Jan 2018 Shift-2 - Question 121
The Young’s modulus and thermal stress developed in a steel rod of diametre 2 cm and length 2 m is 200 GPa and 288 MPa respectively, This experiences heating from temperature $$30^\circ C$$ to $$150^\circ C$$ and the rod has been restricted in its original position. Calculate the value of coefficient of thermal expansion.
SSC JE Mechanical Engineering 25th Jan 2018 Shift-2 - Question 122
The value of normal stressis ............ in the plane of maximum shear stress.
SSC JE Mechanical Engineering 25th Jan 2018 Shift-2 - Question 123
Which of the following column has the formulafor the Euler's buckling load as $$\frac{\pi^2 El}{L^2}$$
SSC JE Mechanical Engineering 25th Jan 2018 Shift-2 - Question 124
If the maximum value of the bending moment in the simply supported beam is 6.75 kNm and the diameter of the beam is 75 mm. Calculate the maximum value of bending stress (MPa).
SSC JE Mechanical Engineering 25th Jan 2018 Shift-2 - Question 125
The value of the principal stress at a point in a plane stressed element is $$\sigma_x = \sigma_y = 500$$MPa. Calaulate the value of normal stress acting (MPa)at the angle of $$45^\circ$$ at X axis.
SSC JE Mechanical Engineering 25th Jan 2018 Shift-2 - Question 126
Choose the CORRECT equation for the acceleration in terms of distance (s) and velocity (v).
SSC JE Mechanical Engineering 25th Jan 2018 Shift-2 - Question 127
Choose the CORRECT graph for the motion of an object moving with the linearly increasing acceleration with respect to time.
SSC JE Mechanical Engineering 25th Jan 2018 Shift-2 - Question 128
The maximum value of bending momentin the simply supported beam with a concentrated load P at its mid span is ...............
SSC JE Mechanical Engineering 25th Jan 2018 Shift-2 - Question 129
The fatigue strength of the metallic material can be increased by which of the following features?
SSC JE Mechanical Engineering 25th Jan 2018 Shift-2 - Question 130
The formula for the extension in the tapered rod of length l and tapered diametre of $$D_1$$, and $$D_2$$, under the axial tensile load is ............
