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___________________?

Related Mcqs:

1. 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...

2. The ratio of the length and diameter of a simply supported uniform circular beam which experiences maximum bending stress equal to tensile stress due to same load at its mid span, is___________________?

   A. 1/8 B. 1/4 C. 1/2 D. 1/3...

3. A steel bar 20 mm in diameter simply-supported at its ends over a total span of 40 cm carries a load at its centre. If the maximum stress induced in the bar is limited to N/mm2, the bending strain energy stored in the bar, is___________________?

   A. 411 N mm B. 511 N mm= C. 611 N mm D. 711 N mm...

4. 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...

5. The ratio of the length and depth of a simply supported rectangular beam which experiences maximum bending stress equal to tensile stress, due to same load at its mid span, is_______________?

   A. 1/2 B. 2/3 C. 1/4 D. 1/3...

6. A compound bar consists of two bars of equal length. Steel bar cross -section is 3500 mm2and that of brass bar is 3000 mm2. These are subjected to a compressive load 100,000 N. If Eb = 0.2 MN/mm2 and Eb = 0.1 MN/mm2, the stresses developed are___________________?

   A. b = 10 N/mm2 s = 20 N/mm 2 B. b = 8 N/mm2 s = 16 N/mm2 C. b = 6 N/mm2 s = 12 N/mm2 D. b = 5 N/mm2 s = 10 N/mm2...

7. The maximum deflection due to a uniformly distributed load w/unit length over entire span of a cantilever of length l and of flexural rigidly EI, is_________________?

   A. wl3/3EI B. wl4/3EI C. wl4/8EI D. wl4/12EI...

8. A bar L metre long and having its area of cross-section A, is subjected to a gradually applied tensile load W. The strain energy stored in the bar is_________________?

   A. WL/2AE B. WL/AE C. W²L/AE D. W²L/2AE...

9. 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...

10. The maximum deflection of a simply supported beam of span L, carrying an isolated load at the centre of the span; flexural rigidity being EI, is______________?

    A. WL3/3EL B. WL3/8EL C. WL3/24EL D. WL3/48EL...