Lakshya Education MCQs

Question: A singly reinforced concrete beam of 25 cm width and 70 cm effective depth is provided with 18.75 cm² steel. If the modular ratio (m) is 15, the depth of the neutral axis, is
Options:
A.20 cm
B.25 cm
C.30 cm
D.35 cm
Answer: Option C

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More Questions on This Topic :

Question 1. As per IS : 456, the reinforcement in a column should not be less than
  1.    0.5% and not more than 5% of cross-sectional area
  2.    0.6% and not more than 6% of cross-sectional area
  3.    0.7% and not more than 7% of cross-sectional area
  4.    0.8% and not more than 8% of cross-sectional area
Answer: Option D
Question 2. If the diameter of longitudinal bars of a square column is 16 mm, the diameter of lateral ties should not be less than
  1.    4 mm
  2.    5 mm
  3.    6 mm
  4.    8 mm
Answer: Option C
Question 3. The diameter of main bars in R.C.C. columns, shall not be less than
  1.    6 mm
  2.    8 mm
  3.    10 mm
  4.    12 mm
Answer: Option D
Question 4. If a bent tendon is required to balance a concentrated load W at the centre of the span L, the central dip h must be at least
  1.    WL/P
  2.    WL/2P
  3.    WL/3P
  4.    WL/4P
Answer: Option D
Question 5. On piles, the drop must be at least
  1.    80 cm
  2.    100 cm
  3.    120 cm
  4.    140 cm
Answer: Option C
Question 6. In a combined footing for two columns carrying unequal loads, the maximum hogging bending moment occurs at
  1.    Less loaded column
  2.    More loaded column
  3.    A point of the maximum shear force
  4.    A point of zero shear force
Answer: Option D

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