A simply supported beam 6 m long and of effective depth 50 cm, carries a uniformly distributed load 2400 kg/m including its self weight. If the lever arm factor is 0.85 and permissible tensile stress of steel is 1400 kg/cm2, the area of steel required, is___________________?

Related Mcqs:

1. If the permissible compressive and tensile stresses in a singly reinforced beam are 50 kg/cm2 and 1400 kg/cm2 respectively and the modular ratio is 18, the percentage area At of the steel required for an economic section, is__________________?

   A. 0.496 %

   B. 0.596 %

   C. 0.696 %

   D. 0.796 %

2. If permissible working stresses in steel and concrete are respectively 1400 kg/cm2 and 80 kg/cm2 and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is______________?

   A. 37 cm

   B. 38 cm

   C. 39 cm

   D. 40 cm

3. The reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force 6t/cm2, safe shear stress 5 kg/cm2 and B.M. 24 mt________________?

   A. Is safe in shear
   B. Is unsafe in shear
   C. Is over safe in shear
   D. Needs redesigning

4. A reinforced concrete cantilever beam is 3.6 m long, 25 cm wide and has its lever arm 40 cm. It carries a load of 1200 kg at its free end and vertical stirrups can carry 1800 kg. Assuming concrete to carry one-third of the diagonal tension and ignoring the weight of the beam, the number of shear stirrups required, is___________________?

   A. 30
   B. 35
   C. 40
   D. 45

5. An R.C.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6 metres and carries a U.D.L. of 3000 kg/m inclusive of its self weight. If the lever arm constant for the section is 0.865, the maximum intensity of shear stress, is_______________?

   A. 8.3 kg/cm2
   B. 7.6 kg/cm2
   C. 21.5 kg/cm 2
   D. 11.4 kg/cm2

6. An R.C.C. beam of 6 m span is 30 cm wide and has a lever arm of 55 cm. If it carries a U.D.L. of 12 t per m and allowable shear stress is 5 kg/cm2, the beam________________?

   A. Is safe in shear
   B. Is safe with stirrups
   C. Is safe with stirrups and inclined bars
   D. Needs revision of section

7. An R.C.C beam of 25 cm width has a clear span of 5 metres and carries a U.D.L. of 2000 kg/m inclusive of its self weight. If the lever arm of the section is 45 cm., the beam is__________________?

   A. Safe in shear
   B. Is safe with stirrups
   C. Is safe with stirrups and inclined members
   D. Needs revision of the section

8. A short column 20 cm × 20 cm in section is reinforced with 4 bars whose area of cross section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40 kg/cm2 and 300 kg/cm2, the Safe load on the column, should not exceed_______________?

   A. 4120 kg
   B. 41,200 kg
   C. 412,000 kg
   D. None of these

9. If the maximum shear stress at the end of a simply supported R.C.C. beam of 16 m effective span is 10 kg/cm2, the length of the beam having nominal reinforcement, is________________?

   A. 8 cm
   B. 6 m
   C. 8 m
   D. 10 m

10. If the maximum shear stress at the end of a simply supported R.C.C. beam of 6 m effective span is 10 kg/cm2, the share stirrups are provided for a distance from either end where, is________________?

    A. 50 cm
    B. 100 cm
    C. 150 cm
    D. 200 cm