MCQ on Strength of Materials pdf for Civil Engineering - Set 13 - ObjectiveBooks

# Practice Test: Question Set - 13

1. For the beam shown in below figure, the maximum positive bending moment is nearly equal to negative bending moment when L1 is equal to
(A) 1.0 L
(B) 0.7 L
(C) 0.5 L
(D) 0.35 L

2. A force is completely defined when we specify
(A) Magnitude
(B) Direction
(C) Point of application
(D) All of the above

3. In a three hinged arch, the third hinge is generally kept at
(A) Crown of the arch
(B) Midpoint of the crown and left support hinge
(C) Midpoint of the crown and right support hinge
(D) None of these

4. The stiffness factor for a prismatic beam of length L and moment of inertia I, is
(A) IE/L
(B) 2EI/L
(C) 3EI/L
(D) 4EI/L

5. Center of percussion is
(A) The point of C.G.
(B) The point of metacentre
(C) The point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis
(D) Point of suspension

6. The weakest section of a diamond riveting, is the section which passes through
(A) First row
(B) Second row
(C) Central raw
(D) One rivet hole of end row

7. If a solid shaft is subjected to a torque ‘T’ at its end such that maximum shear stress does not exceed fs the diameter of the shaft will be
(A) 16T/π fs
(B) √(16T/π fs)
(C) ∛(16T/π fs)
(D) None of these

8. Pick up wrong statement about friction force for dry surfaces. Friction force is
(A) Proportional to normal load between the surfaces
(B) Dependent on the materials of contact surface
(C) Proportional to velocity of sliding
(D) Independent of the area of contact surfaces

9. The shape of the bending moment diagram over the length of a beam, carrying a uniformly distributed load is always
(A) Linear
(B) Parabolic
(C) Cubical
(D) Circular

10. The maximum load to which a fillet joint of length ‘L’ can be subjected to, is
(A) 0.7 × S × fillet size × L
(B) 2 × S × fillet size × L
(C) Permissible shear stress × fillet size × L
(D) (S × fillet size × L)/3

11. Which of the following is not the unit of energy?
(A) kg m
(B) kcal
(C) watt
(D) watt hours

12. In a beam, the neutral plane
(A) May be its centre
(B) Passes through the C.G. of the area of cross-section
(C) Does not change during deformation
(D) None of these

13. The moment diagram for a cantilever whose free end is subjected to a bending moment, will be a
(A) Triangle
(B) Rectangle
(C) Parabola
(D) Cubic parabola

14. The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is as per the principle of
(A) Forces
(B) Independence of forces
(C) Dependence of forces
(D) Resolution of forces

15. The law which states, "Within elastic limits strain produced is proportional to the stress producing it", is known as
(A) Bernoulli's law
(B) Stress law
(C) Hooke's law
(D) Poisson's law

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