is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The maximum stress in the beam, subjected to a maximum bending moment , is_________________?

Related Mcqs:

1. is the pre- stressed force applied to tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The minimum stress on the beam subjected to a maximum bending moment is________________?

   A. f = (P/A) – (Z/M) B. f = (A/P) – (M/Z) C. f = (P/A) – (M/Z) D. f = (P/A) – (M/6Z)...

2. If is the sectional area of a pre-stressed rectangular beam provided with a tendon pre -stressed by a force through its centroidal longitudinal axis, the compressive stress in concrete, is_______________?

   A. P/A B. A/P C. P/2A D. 2A/P...

3. A pre-stressed rectangular beam which carries two concentrated loads W at L/3 from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip h is_____________________?

   A. WL/P B. WL/2P C. WL/3P D. WL/4P...

4. In a pre-stressed beam carrying an external load W with a bent tendon is having angle of -stressed load P. The net downward load at the centre is_________________?

   A. W – 2P B. W – P C. W – P D. W – 2P...

5. If the loading on a pre-stressed rectangular beam, is uniformly distributed, the tendon to be provided should be_______________?

   A. Straight below centroidal axis B. Parabolic with convexity downward C. Parabolic with convexity upward D. Straight above centroidal axis...

6. If a rectangular pre-stressed beam of an effective span of 5 meters and carrying a total load 3840 kg/m, is designed by the load balancing method, the central dip of the parabolic tendon should be_________________?

   A. 5 cm B. 10 cm C. 15 cm D. 20 cm...

7. If the maximum dip of a parabolic tendon carrying tension P is h and the effective length of the pre-stressed beam is L, the upward uniform pressure will be________________?

   A. 8hp/ l B. 8hp/l² C. 8hl/p D. 8hl/p²...

8. If W is total load per unit area on a panel, D is the diameter of the column head, L is the span in two directions, then the sum of the maximum positive bending moment and average of the negative bending moment for the design of the span of a square flat slab, should not be less than________________?

   A. WL/12 (L – 2D/3)² B. WL/10 (L + 2D/3)² C. WL/10 (L – 2D/3)² D. WL/12 (L – D/3)²...

9. If the tendon is placed at an rectangular beam (sectional top edge)________________?

   A. Is increased by PZ/e B. Is increased by Pe/Z C. Is decreased by Pe/Z D. Remains unchanged...

10. To ensure that the hogging bending moment at two points of suspension of a pile of length L equals the sagging moment at its centre, the distances of the points of suspension from either end, is________________?

    A. 0.107 L B. 0.207 L C. 0.307 L D. 0.407 L...