The length of lap in tension reinforcement should not be less than the bar diameter × (actual tension / four times the permissible average bond stress) if it is more than_______________?

Related Mcqs:

1. The length of the lap in a compression member is kept greater than bar diameter x (Permissible stress in bar / Five times the bond stress) or____________________?

   A. 12 bar diameters
   B. 18 bar diameters
   C. 24 bar diameters
   D. 30 bar diameters

2. If Sb, is the average bond stress on a bar of diameter subjected to maximum stress , the length of the embedment is given by_____________?

   A. l = dt/Sb
   B. l = dt/2Sb
   C. l = dt/3Sb
   D. l = dt/4Sb

3. If the average bending stress is 6 kg/cm2 for M 150 grade concrete, the length of embedment of a bar of diameter d according to I.S. 456 specifications, is__________________?

   A. 28 d
   B. 38 d
   C. 48 d
   D. 58 d

4. The minimum thickness of the cover at the end of a reinforcing bar should not be less than twice the diameter of the bar subject to a minimum of___________________?

   A. 10 mm
   B. 15 mm
   C. 20 mm
   D. 25 mm

5. The radius of a bar bend to form a hook, should not be less than_______________?

   A. Twice the diameter
   B. Thrice the diameter
   C. Four times the diameter
   D. Five times the diameter

6. The diameter of transverse reinforcement of columns should be equal to one-fourth of the diameter of the main steel rods but not less than________________?

   A. 4 mm
   B. 5 mm
   C. 6 mm
   D. 7 mm

7. If diameter of a reinforcement bar is d, the anchorage value of the hook is_______________?

   A. 4d
   B. 8d
   C. 12d
   D. 16d

8. 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

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. The anchorage value of a hook is assumed sixteen times the diameter of the bar if the angle of the bend, is___________________?

    A. 30°
    B. 40°
    C. 45°
    D. All the above