MCQs Mechanics of Materials

By: Prof. Dr. Fazal Rehman | Last updated: May 21, 2025

1. : When an eccentric load is applied, what stress comes?
(A) Thermal stress
(B) Bending stress
(C) Tensile stress
(D) Shear stress

2. : Bending stress is ______
(A) Inversely proportional from neutral layer to a distance of the layer
(B) Directly proportional from neutral layer to a distance of the layer
(C) Directly proportional to neutral layer
(D) From neutral layer, it does not depend upon the distance of the layer

3. : Take a steel bar of 250mm × 15mm × 10mm that is free to enlarge is heated from 15°C to 40°C. What will be made?
(A) Tensile stress
(B) Compressive stress
(C) Shear stress
(D) No stress

4. : If _______ the beam is called of a uniform strength
(A) Throughout the beam, the deflection is the same
(B) Through the beam, the shear stress is the same
(C) Throughout the beam, the B.M. is the same
(D) Along its longitudinal axis, the bending stress is the same at every section

5. : What is the internal diameter for the safe stress of a hollow steel column which carries 2100 KN with 125 MN/m² of axial load, if 30 cm is the external diameter of the column?
(A) 30.14 cm
(B) 26.19 cm
(C) 25 cm
(D) 27.9 cm

6. : Bending equation’s expression is?
(A) M/y = σ/R = E/I
(B) M/R = σ/y = E/I
(C) M/I = σ/y = E/R
(D) M/I = σ/R = E/y

7. : Because of simple bending, the stress in the beam is _______
(A) Curvilinearly related
(B) Inversely proportional
(C) Directly proportional
(D) None of the mentioned