List of top Mechanical Engineering Questions on Strength of Materials asked in CUET (PG)

When a component is subjected to varying (sinusoidal) load, which statements are correct: A. Mean stress is zero for fluctuating stress
B. Minimum stress is zero for repeated stress
C. Mean stress is zero for reversed stress
D. Amplitude stress is the average of minimum and maximum stress

The correct order of effective length \((L_e)\) of the column for the following support condition is: A. Pinned - Pinned
B. Fixed - Free
C. Fixed - Fixed
D. Pinned - Fixed

Arrange the following steps in correct sequence to construct Mohr’s circle for a given plane stress \((\sigma_x, \sigma_y, \tau_{xy})\): A. Plot center at \(\left(\frac{\sigma_x+\sigma_y}{2}, 0\right)\)
B. Identify principal stresses as horizontal intercepts
C. Plot points \(X(\sigma_x,-\tau_{xy})\) and \(Y(\sigma_y,\tau_{xy})\)
D. Connect points X and Y and draw a circle

Two identical circular rods of same diameter and length are subjected to same axial tensile force. One is mild steel and other aluminium. Which is correct?

According to maximum shear stress theory, the yield strength in shear \((\tau_s)\) and yield strength in tension \((\sigma_t)\) is related as:

A shaft was initially subjected to bending moment and then subjected to torsion. If the magnitude of bending moment is same as that of torque, the ratio of maximum bending stress to shear stress would be: