equilibrium of forces laws of motion friction stress strain elastic constants bending moments shear force diagrams torsion buckling of columns thin walled pressure vessels - Online Test

30:00

1. Which of Newton's laws of motion states that for every action, there is an equal and opposite reaction?

A) First Law of Motion B) Second Law of Motion C) Third Law of Motion D) Law of Universal Gravitation

2. A body is in equilibrium if the net force acting on it is:

A) Equal to zero B) Greater than zero C) Less than zero D) Dependent on mass

3. The coefficient of static friction is generally:

A) Less than the coefficient of kinetic friction B) Equal to the coefficient of kinetic friction C) Greater than the coefficient of kinetic friction D) Independent of the surfaces in contact

4. Stress is defined as force per unit:

A) Volume B) Area C) Length D) Mass

5. Strain is defined as the ratio of change in length to the original:

A) Width B) Height C) Volume D) Length

6. Hooke's Law states that stress is proportional to strain within the:

A) Elastic limit B) Plastic limit C) Yield point D) Ultimate tensile strength

7. Young's Modulus (E) is a measure of a material's:

A) Resistance to shear deformation B) Resistance to elastic deformation under tensile or compressive stress C) Resistance to volume change D) Ability to absorb energy before fracturing

8. Poisson's ratio is defined as the ratio of lateral strain to:

A) Longitudinal strain B) Shear strain C) Volumetric strain D) Tensile strain

9. Shear Modulus (G) relates stress and strain in:

A) Tension B) Compression C) Torsion D) Shear

10. Bulk Modulus (K) relates pressure to:

A) Linear strain B) Shear strain C) Volumetric strain D) Lateral strain

11. For a ductile material, the yield strength is typically:

A) Lower than the ultimate tensile strength B) Higher than the ultimate tensile strength C) Equal to the fracture strength D) The point of maximum stress

12. Which diagram represents the variation of shear force along the length of a beam?

A) Bending Moment Diagram B) Shear Force Diagram C) Stress-Strain Curve D) Load-Deflection Curve

13. The bending moment is maximum where the shear force is:

A) Zero or changes sign B) Maximum C) Minimum D) Constant

14. For a simply supported beam with a concentrated load at the center, the bending moment is maximum at:

A) The supports B) The center C) One-quarter span D) The free end

15. The maximum shear force for a cantilever beam with a uniformly distributed load is at the:

A) Free end B) Fixed support C) Mid-span D) Point of contraflexure

16. Torsion is the twisting of an object due to:

A) Tensile force B) Compressive force C) Shear force D) Torque

17. The polar moment of inertia for a solid circular shaft of radius 'r' is:

A) πr²/2 B) πr⁴/2 C) πr⁴/4 D) πr²/4

18. In the torsion formula, τ = Tr/J, what does 'J' represent?

A) Torque B) Radius C) Polar moment of inertia D) Shear stress

19. Buckling is a phenomenon associated with:

A) Tensile members B) Compressive members C) Torsional members D) Shear members

20. Euler's formula for buckling load is applicable for columns that are:

A) Short and stocky B) Long and slender C) Made of brittle material D) Subjected to bending only

21. The slenderness ratio of a column is the ratio of its effective length to its:

A) Actual length B) Radius of gyration C) Cross-sectional area D) Material density

22. For a column with both ends pinned, the effective length is equal to its:

A) Actual length B) Half its actual length C) Twice its actual length D) Zero

23. A thin-walled pressure vessel is one where the ratio of the wall thickness to the internal diameter is typically:

A) Greater than 0.1 B) Less than 0.1 C) Equal to 0.5 D) Independent of diameter

24. In a thin-walled cylindrical pressure vessel, the hoop stress (circumferential stress) is given by:

A) pd/2t B) pd/t C) pt/2d D) pt/d

25. In a thin-walled cylindrical pressure vessel, the longitudinal stress (axial stress) is given by:

A) pd/2t B) pd/t C) pt/2d D) pt/d

26. Hoop stress in a thin-walled cylindrical pressure vessel is generally:

A) Equal to longitudinal stress B) Half of the longitudinal stress C) Twice the longitudinal stress D) Unrelated to longitudinal stress

27. For a thin-walled spherical pressure vessel, the stress in any direction tangential to the surface is:

A) pd/t B) pd/2t C) pt/d D) pt/2d

28. Which of the following is a unit of stress?

A) N-m B) N/m C) N/m² D) m/N

29. Which of the following is a unit of strain?

A) N/m B) m/m C) N-m D) Pa

30. A material that can undergo large plastic deformation before fracture is called:

A) Brittle B) Ductile C) Elastic D) Hard

31. The point on the stress-strain curve where the material begins to deform plastically is called the:

A) Ultimate tensile strength B) Fracture point C) Yield point D) Elastic limit

32. A force system is in equilibrium if the algebraic sum of moments about any point is:

A) Zero B) Maximum C) Minimum D) Equal to the resultant force

33. The coefficient of kinetic friction is typically:

A) Higher than static friction B) Lower than static friction C) Equal to static friction D) Zero

34. When a body is sliding down an inclined plane, the angle of friction is related to the angle of inclination by:

A) tan(friction angle) = tan(inclination angle) B) tan(friction angle) > tan(inclination angle) C) tan(friction angle) < tan(inclination angle) D) sin(friction angle) = sin(inclination angle)

35. The maximum stress that a material can withstand without permanent deformation is known as the:

A) Yield strength B) Ultimate tensile strength C) Elastic limit D) Fatigue strength

36. The ability of a material to absorb energy up to fracture is called:

A) Stiffness B) Hardness C) Toughness D) Ductility

37. A beam that is supported at both ends and carries a load between the supports is called a:

A) Cantilever beam B) Overhanging beam C) Simply supported beam D) Fixed beam

38. In a bending moment diagram, the area under the shear force diagram between two sections represents the:

A) Shear force at the sections B) Bending moment at the sections C) Change in bending moment between the sections D) Torque between the sections

39. For a rectangular cross-section of width 'b' and depth 'd', the section modulus (Z) is:

A) bd²/2 B) b²d/2 C) bd³/6 D) b³d/6

40. The maximum shear stress in a solid circular shaft subjected to torsion occurs at the:

A) Center B) Surface C) Mid-radius D) It is uniform throughout

41. The critical buckling load for a column with one end fixed and the other end free is given by P = π²EI/(Le)² where Le is:

A) The actual length of the column B) Half the actual length C) Twice the actual length D) The effective length

42. The critical buckling load for a column with both ends fixed is:

A) Equal to Euler's load for pinned ends B) Twice Euler's load for pinned ends C) Four times Euler's load for pinned ends D) Half Euler's load for pinned ends

43. In a thin-walled pressure vessel, the maximum stress occurs in which direction?

A) Axial B) Radial C) Circumferential (Hoop) D) Tangential

44. The maximum shear stress in a thin-walled cylindrical pressure vessel is approximately:

A) Equal to hoop stress B) Half of hoop stress C) Twice hoop stress D) Equal to longitudinal stress

45. Which of the following is an elastic constant?

A) Shear stress B) Shear strain C) Shear modulus D) Poisson's ratio

46. If a beam is subjected to pure bending, the shear force is:

A) Maximum B) Minimum C) Zero D) Variable

47. The product of Young's modulus and the polar moment of inertia is related to the:

A) Torsional rigidity B) Flexural rigidity C) Shear rigidity D) Compressive rigidity

48. For a solid circular shaft, the maximum shear stress due to torsion is proportional to the:

A) Cube of the radius B) Square of the radius C) Radius D) Fourth power of the radius

49. In the context of column buckling, the term 'crippling load' is synonymous with:

A) Yield load B) Ultimate load C) Critical load D) Fatigue load

50. For a thin-walled pressure vessel, the stress intensity (difference between maximum and minimum principal stresses) is equal to the:

A) Longitudinal stress B) Hoop stress C) Average of hoop and longitudinal stress D) Sum of hoop and longitudinal stress

Test Results

0/0

All Online Tests

E-Book equilibrium of forces laws of motion friction stress strain elastic constants bending moments shear force diagrams torsion buckling of columns thin walled pressure vessels One Line Questions equilibrium of forces laws of motion friction stress strain elastic constants bending moments shear force diagrams torsion buckling of columns thin walled pressure vessels Question Bank equilibrium of forces laws of motion friction stress strain elastic constants bending moments shear force diagrams torsion buckling of columns thin walled pressure vessels