Applied Statics and Strength of Materials MCQ Test - Set 02 - ObjectiveBooks

# Practice Test: Question Set - 02

1. The center of gravity of a uniform lamina lies at
(A) The center of heavy portion
(B) The bottom surface
(C) The midpoint of its axis
(D) All of the above

2. The bending moment at E for the structure shown in below figure, is
(A) Zero
(B) 10 Tm
(C) 20 Tm
(D) 40 Tm

3. The maximum twisting moment a shaft can resist, is the product of the permissible shear stress and
(A) Moment of inertia
(B) Polar moment of inertia
(C) Polar modulus
(D) Modulus of rigidly

4. The deflection of any rectangular beam simply supported, is
(A) Directly proportional to its weight
(B) Inversely proportional to its width
(C) Inversely proportional to the cube of its depth
(D) Directly proportional to the cube of its length

5. Pick up the correct statement from the following:
(A) The point through which the resultant of the shear stresses passes is known as shear centre
(B) In the standard rolled channels, the shear centre is on the horizontal line passing through and away from the C.G. beyond web
(C) In equal angles, the shear centre is on the horizontal plane and away from the C.G., outside of the leg projection
(D) All the above

6. A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve
(A) Catenary
(B) Parabola
(C) Hyperbola
(D) Elliptical

7. A beam is said to be of uniform strength, if
(A) B.M. is same throughout the beam
(B) Deflection is same throughout the beam
(C) Bending stress is same throughout the beam
(D) Shear stress is same throughout the beam

8. Pick up the correct statement from the following:
(A) The distance of the eccentric axial load from the C.G. beyond which tension develops, is known as kern distance
(B) In visco-elastic material, stress-strain relation is dependent on time
(C) An orthotropic material has different properties in three mutually perpendicular directions
(D) All the above

9. The ratio of limiting friction and normal reaction is known as
(A) Coefficient of friction
(B) Angle of friction
(C) Angle of repose
(D) Sliding friction

10. If a three hinged parabolic arch carries a uniformly distributed load on its entire span, every section of the arch resists.
(A) Compressive force
(B) Tensile force
(C) Shear force
(D) Bending moment

11. The under mentioned type is simple strain
(A) Tensile strain
(B) Compressive strain
(C) Shear strain
(D) All the above

12. If rain is falling in the opposite direction of the movement of a pedestrian, he has to hold his umbrella
(A) More inclined when moving
(B) Less inclined when moving
(C) More inclined when standing
(D) Less inclined when standing

13. The reaction at support A of the beam shown in below figure, is
(A) Zero
(B) 5 T
(C) 10 T
(D) 1 T

14. In a solid arch, shear force acts
(A) Vertically upwards
(B) Along the axis of the arch
(C) Perpendicular to the axis of arch
(D) Tangentially to the arch

15. The maximum frictional force which comes into play when a body just begins to slide over another surface is called
(A) Limiting friction
(B) Sliding friction
(C) Rolling friction
(D) Kinematic friction

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