If the depth of actual neutral axis in a beam is more than the depth of critical neutral axis, then the beam is called________________?

Related Mcqs:

1. If the permissible stress in steel in tension is 140 N/mm2, then the depth of neutral axis for a singly reinforced rectangular balanced section will be___________________?

   A. 0.35 d
   B. 0.40 d
   C. 0.45 d
   D. dependent on grade of concrete also

2. If the depth of neutral axis for a singly reinforced rectangular section is represented by kd in working stress design, then the value of k for balanced section_______________?

   A. depends on as, only
   B. depends on aCbC only
   C. depends on both crst and acbc
   D. is independant of both ast and acbc where d is the effective depth, ast is per-missible stress in steel in tension and ocbc is permissible stress in concrete in bend¬ing compression

3. A continuous beam is deemed to be a deep beam when the ratio of effective span to overall depth (1/D. is less than__________________?

   A. 1.5
   B. 2.0
   C. 2.5
   D. 3.0

4. According to ISI recommendations, the maximum depth of stress block for balanced section of a beam of effective depth d is__________________?

   A. 0.43 d
   B. 0.55 d
   C. 0.68 d
   D. 0.85 d

5. For a simply supported beam of span 15m, the minimum effective depth to satisfy the vertical deflection limits should be________________?

   A. 600 mm
   B. 750 mm
   C. 900 mm
   D. more than 1 m

6. According to Whitney’s theory, depth of stress block for a balanced section of a concrete beam is limited to_______________?

   A. 0.43 d
   B. 0.537 d
   C. 0.68 d
   D. 0.85 d

   where d is effective depth of beam[ES 2k]

7. As per Whitney’s theory, the maximum moment of resistance of the balanced section of a beam of width b and effective depth d is given by_______________?

   A. ^acybd2
   B. ^acybd2
   C. 0.185acybd2
   D. 0.43acybd2
   where acy is the cylinder compressive strength of concrete

8. One of the criteria for the effecvve width of flange of T-beam is bf =—+ bw +6Df 6 In above formula, l0 signifies_______________?

   A. effective span of T-beam
   B. distance between points of zero moments in the beam
   C. distance between points of maximum moments in the beam
   D. clear span of the T-beam

9. The main reason for providing number of reinforcing bars at a support in a simply supported beam is to resist in that zone_________________?

   A. compressive stress
   B. shear stress
   C. bond stress
   D. tensile stress

10. In a ring beam subjected to uniformly distributed load______________?

    1. shear force at mid span is zero
    2. shear force at mid span is maximum
    3. torsion at mid span is zero
    4. torsion at mid span is maximum
    The correct answer is ?

    A. (1) and (3)
    B. (1) and (4)
    C. (2) and (3)
    D. (2) and (4)