A. Equal or less than 5 kg/cm2, no shear reinforcement is provided
B. Greater than 4 kg/cm2, but less than 20 kg/cm2, shear reinforcement is provided
C. Greater than 20 kg/cm2, the size of the section is changed
D. All the above
Related Mcqs:
- 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 - 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 - 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 - The maximum shear stress (qmax) in a rectangular beam is_______________?
A. 1.25 times the average
B. 1.50 times the average
C. 1.75 times the average
D. 2.0 times the average - 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 - 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 - In the zone of R.C.C. beam where shear stress is less than 5 kg/cm2, nominal reinforcement is provided at a pitch of________________?
A. One -half lever arm of the section
B. One-third lever arm of the section
C. Lever arm of the section
D. One and half lever arm of the section - The maximum shear stress (q) in concrete of a reinforced cement concrete beam is_____________?
A. Shear force/(Lever arm × Width)
B. Lever arm/(Shear force × Width)
C. Width/(Lever arm × Shear force)
D. (Shear force × Width)/Lever arm - 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 - Pick up the incorrect statement from the following. The intensity of horizontal shear stress at the elemental part of a beam section, is directly proportional to__________________?
A. Shear force
B. Area of the section
C. Distance of the C.G. of the area from its neutral axis
D. Moment of the beam section about its neutral axis
