structural analysis MCQs – Page 3

Practise focused structural analysis questions with marked answers for exam preparation and subject revision.

structural analysis Mcqs
41. Degree of kinematic indeterminacy of a pin-jointed plane frame is given by______________?
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A. 2j r

B. j 2r

C. 2j + r

D. 3j r

42. The number of independent equations to be satisfied for static equilibrium of a plane structure is__________________?
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A. 1

B. 6

C. 3

D. 2

43. The three moments equation is applicable only when___________________?
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A. the spans are equal

B. there is no discontinuity such as hinges within the span

C. there is no settlement of supports

D. the beam is prismatic

44. Sinking of an intermediate support of a continuous beam________________?
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A. sider the following statements

45. The maximum bending moment due to a train of wheel loads on a simply supported girder_________________?
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A. always occurs at centre of span

B. always occurs under a wheel load

C. none of the above

D. never occurs under a wheel load

46. To generate the j the column of the flexibility matrix________________?
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A. a unit displacement is applied at co-ordinate j and the forces are calculated at all coordinates

B. a unit displacement is applied at co-ordinate j and the displacements are calculated at all co-ordinates

C. a unit force is applied at coordinate j and the forces are calculated at all coordinates

D. a unit force is applied at coordinate j and the displacements are calculated at all coordinates
47. Independent displacement components at each joint of a rigid-jointed plane frame are_________________?
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A. one linear movement and two rotations

B. three linear movements

C. three rotations

D. two linear movements and one rotation
48. In the displacement method of structural analysis, the basic unknowns are__________________?
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A. displacements

B. none of the above

C. force

D. displacements and forces

49. Degree of static indeterminacy of a rigid-jointed plane frame having 15 members, 3 reaction components and 14 joints is__________________?
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A. 8

B. 6

C. 3

D. 2

50. The degree of static indeterminacy of a pin-jointed space frame is given by_________________?
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A. m + r + 3j

B. m + r 2j

C. m + r 3j

D. 3m + r 3j

51. The fixed support in a real beam becomes in the conjugate beam a___________________?
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A. fixed support

B. free end

C. roller support

D. hinged support

52. Study the following statements?
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A. ) The force method is more useful when degree of static indeterminacy is greater than the degree of kinematic indeterminacy

B. The force method is more useful when degree of static indeterminacy is less than the degree of kinematic indeterminacy</strong></span>

C. The displacement method is more useful when degree of kinematic indeterminacy is less than the degree of static indeterminacy

D. ="color: #003f1a;">i) The displacement method is more useful when degree of kinematic indeterminacy is greater than the degree of static indeterminacy
53. For stable structures, one of the important properties of flexibility and stiffness matrices is that the elements on the main diagonal________________?
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A. of a stiffness matrix must be positive

B. correct answer is

C. of a stiffness matrix must be negative

D. of a flexibility matrix must be negative</strong>

E. ) of a flexibility matrix must be positive