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____________________?

Related Mcqs:

1. 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_______________?

   A. 18 bar diameters B. 24 bar diameters C. 30 bar diameters D. 36 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 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...

6. The section of a reinforced beam where most distant concrete fibre in compression and tension in steel attains permissible stresses simultaneously, is called_________________?

   A. Balanced section B. Economic section C. Critical section D. All the above...

7. Steel bars are generally connected together to get greater length than the standard length by providing_______________?

   A. Straight bar splice B. Hooked splice C. Dowel splice D. All the above...

8. The modular ratio m of a concrete whose permissible compressive stress is C, may be obtained from the equation.

   A. m = 700/3C B. m = 1400/3C C. m = 2800/3C D. m = 3500/3C...

9. If the permissible compressive stress for a concrete in bending is C kg/m2, the modular ratio is_____________?

   A. 2800/C B. 2300/2C C. 2800/3C D. 2800/C2...

10. In a singly reinforced beam, if the permissible stress in concrete reaches earlier than that in steel, the beam section is called________________?

    A. Under-reinforced section B. Over reinforced section C. Economic section D. Critical section...