Mechanical Engineer MCQs

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

1. : Units of flexural rigidity are?
(A) m/N³
(B) Nm
(C) N/m
(D) Nm²

2. : Units for section modulus are?
(A) m²
(B) m³
(C) m⁴
(D) m

3. : The deformation of a beam is ____ to the pure bending if the beam is subjected.
(A) Trapezoidal
(B) Triangular
(C) Arc of circle
(D) Rectangular

4. : ____ is always constant in the simple bending.
(A) Deformation
(B) Loading
(C) Shear force
(D) Bending moment

5. : At ___ the beam has maximum shearing stress.
(A) Extreme fibers
(B) Neutral axis
(C) Mid span
(D) Action of loading

6. : At the neutral axis, bending stress is ____.
(A) Zero
(B) Maximum
(C) Minimum
(D) Constant

7. : To the bending moment, the curvature of a beam is ________.
(A) Equal
(B) Directly proportion
(C) Inversely proportion
(D) Coincides

8. : In both compression and tension for material _________ is the same, when the beam is subjected to simple bending.
(A) Poisson’s ratio
(B) Modulus of elasticity
(C) Modulus of rigidity
(D) Modulus of section

9. : Units of axial stiffness are?
(A) N/m
(B) m²
(C) m³
(D) -m

10. : If a rectangular beam has a size of 240 mm × 400 mm, calculate the modulus of the section.
(A) 6.4 × 10⁶ mm³
(B) 6.2 × 10⁶ mm³
(C) 5.5 × 10⁶ mm³
(D) 5.4 × 10⁶ mm³

11. : Radius and force product is?
(A) Turning shear
(B) Twisting shear
(C) Turning moment
(D) Tilting moment