51. The degree of indeterminacy of the frame in the given figure, is______________?
A. Zero
B. 1
C. 2
D. 3
✅ The correct answer is option B.
Theory of Structures MCQs
52. At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section by_________________?
A. Depth of the section
B. Depth of the neutral axis
C. Maximum tensile stress at the section
D. Maximum compressive stress at the section
✅ The correct answer is option B.
53. For calculating the allowable stress of long columns known as_________________?
A. Straight line formula
B. Parabolic formula
C. Perry’s formula
D. Rankine’s formula
✅ The correct answer is option B.
54. For beams breadth is constant__________________?
A. Depth d M
B. Depth d 3
C. Depth d
D. Depth d 1/M
✅ The correct answer is option B.
55. A steel plate d × b is sandwiched rigidly between two timber joists each D × B/2 in section. The steel will be (where Young’s modulus of steel is m times that of the timber)_________________?
A. BD² + mbd²)/6D]
B. BD3 + mbd3)/6D]
C. BD² + mbd3)/4D]
D. BD² + mbd²)/4D]
✅ The correct answer is option B.
56. The force in CD of the truss shown in given figure, is________________?
A. 3t compression
B. 3t tension
C. Zero
D. 1.5t compression
✅ The correct answer is option C.
57. P = /4L² is the equation of Euler’s crippling load, if__________________?
A. Both the ends are fixed
B. Both the ends are hinged
C. One end is fixed and other end is free
D. One end is fixed and other end is hinged
✅ The correct answer is option C.
58. A road of uniform cross-section A and length L force P. The Young’s Modulus E of the material, is_________________?
A. E = /A. L
B. E =/P. L
C. E = P. L/
D. E = P. A/
✅ The correct answer is option C.
59. For determining the force in the member AB of the truss shown in the given figure by method of sections, the section is made to pass through AB, AD and ED and the moments are taken about___________________?
A. Joint C
B. Joint B
C. Joint D
D. Joint A
✅ The correct answer is option C.
60. A short column (30 cm × 20 cm) carries a load P 1 at 4 cm on one side and another load P2at 8 cm on the other side along a principal section parallel to longer dimension. If the extreme intensity on either side is same, the ratio of P1 to P2 will be_________________?
A. 2/3
B. 3/2
C. 8/5
D. 5/8
✅ The correct answer is option C.