A. Straight line formula
B. Parabolic formula
C. Perry’s formula
D. Rankine’s formula
✅ The correct answer is option A.
Theory of Structures MCQs
2. A lift of weight W is lifted by a rope with an acceleration f. If the area of cross-section of the rope is A, the stress in the rope is_______________?
A. [W (1 + f/ G)]/ A
B. (1 – g/f)/A
C. [W (2 + f/G)]/A
D. [W (2 + g/f)]/A
✅ The correct answer is option A.
3. The shape factor of standard rolled beam section varies from_______________?
A. 1.10 to 1.20
B. 1.20 to 1.30
C. 1.30 to 1.40
D. 1.40 to 1.50
✅ The correct answer is option A.
4. For permissible shear stress fs, the torque transmitted by a thin tube of mean diameter D and wall thickness t, is________________?
A. ( /2) t fs
B. ( /2) t fs
C. D2t fs
D. ( /4) fs
✅ The correct answer is option A.
5. The vertical reaction for the arch is________________?
A. wa/2l
B. wl/a
C. wa/l
D. wa²/2l
✅ The correct answer is option A.
6. The stiffness of the close coil helical spring is_________________?
A. d4N/8D3n
B. d4N/4D3n
C. 4D3N/d4n
D. 8D3N/d4n
✅ The correct answer is option A.
7. The point of contraflexure is the point where_______________?
A. B.M. changes sign
B. B.M. is maximum
C. B.M. is minimum
D. S.F. is zero
✅ The correct answer is option A.
8. A close coil helical spring when subjected to a moment M having its axis along the axis of the helix_________________?
A. It is subjected to pure bending
B. Its mean diameter will decrease
C. Its number of coils will increase
D. All the above
✅ The correct answer is option A.
9. A rectangular column shown in the given figure carries a load P having eccentricities ex and ey along X and Y axes. The stress at any point (x, y) is_______________?
A. (p/bd) [1 + (12ey. y/d²) + (12ex. x/d²)]
B. p [1 + (6ey. y/b) + (6ex. x/ b)]
C. (p/bd) [1 + (6ey. y/d) + (6ex. x/b)]
D. (p/bd) [1 + (ey. y/d) + ( ex. x/d)]
✅ The correct answer is option A.
10. In the truss shown in given figure, the force in member BD is______________?
A. 100 t compressive
B. 100 t tensile
C. Zero
D. Indeterminate
✅ The correct answer is option A.