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MCQs

Total Questions : 1549 | Page 9 of 155 pages
Question 81. For initial estimate for a beam design, the width is assumed
  1.    1/15th of span
  2.    1/20th of span
  3.    1/25th of span
  4.    1/30th of span
 Discuss Question
Answer: Option D. -> 1/30th of span
Question 82. 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,
  1.    Is safe in shear
  2.    Is unsafe in shear
  3.    Is over safe in shear
  4.    Needs redesigning
 Discuss Question
Answer: Option B. -> Is unsafe in shear
Question 83. The maximum diameter of a bar used in a ribbed slab, is
  1.    12 mm
  2.    6 mm
  3.    20 mm
  4.    22 mm
 Discuss Question
Answer: Option D. -> 22 mm
Question 84. The advantage of a concrete pile over a timber pile, is
  1.    No decay due to termites
  2.    No restriction on length
  3.    Higher bearing capacity
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 85. An R.C.C. roof slab is designed as a two way slab if
  1.    It supports live loads in both directions
  2.    The ratio of spans in two directions is less than 2
  3.    The slab is continuous over two supports
  4.    The slab is discontinuous at edges
 Discuss Question
Answer: Option B. -> The ratio of spans in two directions is less than 2
Question 86. The transverse reinforcements provided at right angles to the main reinforcement
  1.    Distribute the load
  2.    Resist the temperature stresses
  3.    Resist the shrinkage stress
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 87. The amount of reinforcement for main bars in a slab, is based upon
  1.    Minimum bending moment
  2.    Maximum bending moment
  3.    Maximum shear force
  4.    Minimum shear force
 Discuss Question
Answer: Option B. -> Maximum bending moment
Question 88. If ‘W’ is weight of a retaining wall and ‘P’ is the horizontal earth pressure, the factor of safety against sliding, is
  1.    1.0
  2.    1.25
  3.    1.5
  4.    2.0
 Discuss Question
Answer: Option C. -> 1.5
Question 89. If p₁ and p₂ are mutually perpendicular principal stresses acting on a soil mass, the normal stress on any plane inclined at angle θ° to the principal plane carrying the principal stress p₁, is:
  1.    [(p₁ - p₂)/2] + [(p₁ + p₂)/2] sin 2θ
  2.    [(p₁ - p₂)/2] + [(p₁ + p₂)/2] cos 2θ
  3.    [(p₁ + p₂)/2] + [(p₁ - p₂)/2] cos 2θ
  4.    [(p₁ + p₂)/2] + [(p₁ - p₂)/2] sin 2θ
 Discuss Question
Answer: Option C. -> [(p₁ + p₂)/2] + [(p₁ - p₂)/2] cos 2θ
Question 90. The width of the rib of a T-beam, is generally kept between
  1.    1/7 to 1/3 of rib depth
  2.    1/3 to 1/2 of rib depth
  3.    1/2 to 3/4 of rib depth
  4.    1/3 to 2/3 of rib depth
 Discuss Question
Answer: Option D. -> 1/3 to 2/3 of rib depth

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