The general expression for the B.M. of a beam of length l is the beam carries M = (wl/2) x – (wx²/2)_______________?

Related Mcqs:

1. A simply supported beam which carries a uniformly distributed load has two equal overhangs. To have maximum B.M. produced in the beam least possible, the ratio of the length of the overhang to the total length of the beam, is_________________?

   A. 0.207
   B. 0.307
   C. 0.407
   D. 0.508

2. A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be________________?

   A. 2/3
   B. 3/2
   C. 5/8
   D. 8/5

3. A simply supported beam carries a varying load from zero at one end and w at the other end. If the length of the beam is a, the shear force will be zero at a distance x from least loaded point where x is_________________?

   A. a/2
   B. a/3
   C. a
   D. a

4. A simply supported beam carries varying load from zero at one end and w at the other end. If the length of the beam is a, the maximum bending moment will be_______________?

   A. wa/27
   B. wa²/27
   C. w²a
   D. wa²

5. A simply supported uniform rectangular bar breadth b, depth d and length L carries an isolated load W at its mid-span. The same bar experiences an extension e under same tensile load. The ratio of the maximum deflection to the elongation, is________________?

   A. L/d
   B. L/2d
   C. (L/2d)²
   D. (L/3d)²

6. A rolled steel joist is simply supported at its ends and carries a uniformly distributed load which causes a maximum deflection of 10 mm and slope at the ends of 0.002 radian. The length of the joist will be________________?

   A. 10 m
   B. 12 m
   C. 14 m
   D. 16 m

7. a uniform circular bar of diameter d and length , which extends by an The deflection of amount under a tensile pull , when it carries the same load at its mid-span, is___________________?

   A. el/2d
   B. e²l/3d²
   C. el²/3d²
   D. e²l²/3d²

8. In case of a simply supported I-section beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is_________________?

   A. L/2
   B. L/3
   C. L/4
   D. L/5

9. The ratio of the maximum deflections of a simply supported beam with a central load W and of a cantilever of same length and with a load W at its free end, is________________?

   A. 1/8
   B. 1/10
   C. 1/12
   D. 1/16

10. In case of a simply supported rectangular beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is__________________?

    A. L/2
    B. L/3
    C. L/4
    D. L/5