RCC Structures Design

161. 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

Correct answer: (D)
All the above

162. The advantage of reinforced concrete, is due to

  1. Monolithic character
  2. Fire-resisting and durability
  3. Economy because of less maintenance cost
  4. All the above

Correct answer: (D)
All the above

163. The allowable tensile stress in mild steel stirrups, reinforced cement concrete, is

  1. 1400 kg/cm2
  2. 190 kg/cm2
  3. 260 kg/cm2
  4. 230 kg/cm2

Correct answer: (A)
1400 kg/cm2

164. 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

Correct answer: (B)
Maximum bending moment

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

  1. 30°
  2. 40°
  3. 45°
  4. All the above

Correct answer: (D)
All the above

166. The angle of internal friction of soil mass is the angle whose

  1. Tangent is equal to the rate of the maximum resistance to sliding on any internal inclined plane to the normal pressure acting on the plane
  2. Sine is equal to the ratio of the maximum resistance to sliding on any internal inclined plane to the normal pressure acting on the plane
  3. Cosine is equal to the ratio of the maximum resistance sliding on any internal inclined plane to the normal pressure acting on the plane
  4. None of these

Correct answer: (A)
Tangent is equal to the rate of the maximum resistance to sliding on any internal inclined plane to the normal pressure acting on the plane

167. The angle of repose of a soil is the maximum angle which the outer face of the soil mass makes

  1. With the horizontal
  2. With the vertical
  3. With the perpendicular to the inclined plane of the soil
  4. None of these

Correct answer: (A)
With the horizontal

168. The breadth of a ribbed slab containing two bars must be between

  1. 6 cm to 7.5 cm
  2. 8 cm to 10 cm
  3. 10 cm to 12 cm
  4. 12 cm to 15 cm

Correct answer: (B)
8 cm to 10 cm

169. The design of a retaining wall assumes that the retained earth

  1. Is dry
  2. Is free from moisture
  3. Is not cohesive
  4. All the above

Correct answer: (D)
All the above

170. The design of heel slab of a retaining wall is based on the maximum bending moment due to:

  1. Its own weight
  2. Weight of the soil above it
  3. Load of the surcharge, if any
  4. All the above

Correct answer: (D)
All the above

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