Engineering Mechanics MCQs (Diploma Civil 2nd Year)

Q1. Centre of plain geometrical figure is called

1. A. Centre of gravity
2. B. Centroid
3. C. Centre
4. D. Central axis

Q2. Measuring unit of moment of inertia in M.K.S system

1. A. cm³
2. B. cm⁴
3. C. m⁴
4. D. in⁴

Q3. Resistance of a material against deformation

1. A. Toughness
2. B. Resilience
3. C. Modulus
4. D. Hardness

Q4. Positive bending moment shows

1. A. Hogging
2. B. Jogging
3. C. Tearing
4. D. Sagging

Q5. The property of a material by virtue of which it disappears the deformation after removal of external load

1. A. Toughness
2. B. Rigidity
3. C. Elasticity
4. D. Plasticity

Q6. Bending stress at the neutral axis of a beam

1. A. Maximum tensile
2. B. Negative
3. C. Zero
4. D. Maximum compressive

Q7. Force applied per unit area is called

1. A. Unit force
2. B. Stress
3. C. Strain
4. D. None of these

Q8. Moment area method is used to determine

1. A. Compressive stress
2. B. S.F and B.M
3. C. Slope and deflection
4. D. Tensile stress

Q9. A column having slenderness ratio less than 80 is treated as

1. A. Short column
2. B. Weak column
3. C. Medium column
4. D. Long column

Q10. Maximum value of pitch in a riveted joint

1. A. 3 d
2. B. 2.5 d
3. C. 2 d
4. D. 1.5 d

Q11. The weakest section in a fillet weld is

1. A. Throat
2. B. Small leg
3. C. Side normal to force
4. D. Side parallel to force

Q12. Shape of a structural steel section

1. A. L-Section
2. B. T-Section
3. C. Z-Section
4. D. All of these

Q13. A triangular shaped structure used in replacement of a beam for long spans is called

1. A. T-Beam
2. B. Truss
3. C. Pre-stressed beam
4. D. Triangular beam

Q14. A wall which retains material by its own weight is called

1. A. Cantilever wall
2. B. Gravity wall
3. C. Buttressed wall
4. D. Counterfort wall

Q15. Twisting moment is also called

1. A. Hardness
2. B. Torque
3. C. Momentum
4. D. Flexural

Q16. Centre of a solid geometrical object is called

1. A. Centre of gravity
2. B. Centre
3. C. Centroid
4. D. Central axis

Q17. Moment of inertia of a hollow circle with external diameter 'D' and internal diameter 'd'

1. A. π(D⁴ − d⁴)/64
2. B. π(D⁴ − d⁴)/32
3. C. π(D⁴ + d⁴)/64
4. D. π(d⁴ − D⁴)/64

Q18. Resistance to plastic indentation is

1. A. Stiffness
2. B. Elasticity
3. C. Toughness
4. D. Hardness

Q19. Shape of shear force diagram in case of a cantilever having point load at its free end

1. A. Triangle
2. B. Circular
3. C. Rectangle
4. D. Parabolic

Q20. The capacity to resist plastic deformation of a material

1. A. Ductility
2. B. Elasticity
3. C. Plasticity
4. D. Brittleness

Q21. Strength of a beam is directly proportional to

1. A. Bulk modulus
2. B. Shear modulus
3. C. Section modulus
4. D. All of these

Q22. Stress measured at a plane perpendicular to the direction of force

1. A. Normal stress
2. B. Principal stress
3. C. Direct stress
4. D. All of these

Q23. Deflection at the free end of a cantilever beam having a point load 'W' at free end

1. A. Wl³/3EI
2. B. Wl³/2EI
3. C. Wl⁴/3EI
4. D. Wl²/2EI

Q24. A short column fails by this way

1. A. Buckling
2. B. Bending
3. C. Slipping
4. D. Crushing

Q25. Minimum number of rivets required to connect gusset plates

1. A. 2
2. B. 1
3. C. 3
4. D. 4