If n = number of members andy = number of joints, then for a perfect frame, n =_______________?

Related Mcqs:

1. A framed structure is perfect if it contains members equal to________________?

   A. 2n-3
   B. n-l
   C. ‘2n-l
   D. n – 2
   E. 3n-2

   where n = number of joints in a frame

2. In detennining stresses in frames by methods of sections, the frame is divided into two parts by an imaginary section drawn in such a way as not to cut more than___________________?

   A. two members with unknown forces of the frame
   B. three members with unknown forces of the frame
   C. four members with unknown forces of the frame
   D. three members with known forces of the frame
   E. four members with two known forces

3. The possible loading in various members of framed structures are_______________?

   A. compression or tension
   B. buckling or shear
   C. shear or tension
   D. all of the above
   E. bending

4. Pick up the incorrect statement from the following _______________?

   A. The C.G. of a circle is at its center
   B. The C.G. of a triangle is at the intersection of its medians
   C. The C.G. of a rectangle is at the inter-section of its diagonals
   D. The C.G. of a semicircle is at a distance of r/2 from the center
   E. The C-G. of an ellipse is at its center

5. A number of forces acting at a point will be in equilibrium if_________________?

   A. their total sum is zero
   B. two resolved parts in two directions at right angles are equal
   C. sum of resolved parts in any two per-pendicular directions are both zero
   D. all of them are inclined equally
   E. none of the above

6. If a suspended body is struck at the centre of percussion, then the pressure on die axis passing through the point of suspension will be___________________?

   A. maximum
   B. minimum
   C. zero
   D. infinity
   E. same as the force applied

7. The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is_________________?

   A. same
   B. double
   C. half
   D. four times
   E. one fourth

8. A single force and a couple acting in the same plane upon a rigid body________________?

   A. balance each other
   B. cannot balance each other
   C. produce moment of a couple
   D. are equivalent
   E. none of the above

9. The units of moment of inertia of an area are_______________?

   A. kg m2
   B. m4
   C. kg/m2
   D. m3
   E. kg/m4

10. Which of the following is not a scalar quantity__________________?

    A. time
    B. mass
    C. volume
    D. density
    E. acceleration