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RCC Structures Design MCQ

1.The thickness of the topping of a ribbed slab, varies between

  • A3 cm to 5 cm 
  • B5 cm to 8 cm 
  • C8 cm to 10 cm 
  • D12 cm to 15 cm 
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Correct Answer : (B)

5 cm to 8 cm

 
Explanation:

2.A ribbed slab is provided for

  • AA plain ceiling 
  • BThermal insulation 
  • CAcoustic insulation 
  • DAll the above 
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Correct Answer : (D)

All the above

 
Explanation:

3.An R.C.C. column is treated as short column if its slenderness ratio is less than

  • A30 
  • B35 
  • C40 
  • D50 
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Correct Answer : (D)

50

 
Explanation:

4.The floor slab of a building is supported on reinforced cement floor beams. The ratio of the end and intermediate spans is kept

  • A0.7 
  • B0.8 
  • C0.8 
  • D0.6 
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Correct Answer : (C)

0.8

 
Explanation:

5.If ‘W’ is weight of a retaining wall and ‘P’ is the horizontal earth pressure, the factor of safety against sliding, is

  • A1.0 
  • B1.25 
  • C1.5 
  • D2 
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Correct Answer : (C)

1.5

 
Explanation:

6.The transverse reinforcements provided at right angles to the main reinforcement

  • ADistribute the load 
  • BResist the temperature stresses 
  • CResist the shrinkage stress 
  • DAll the above 
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Correct Answer : (D)

All the above

 
Explanation:

7.The amount of reinforcement for main bars in a slab, is based upon

  • AMinimum bending moment 
  • BMaximum bending moment  
  • CMinimum shear force 
  • DMaximum shear force 
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Correct Answer : (B)

Maximum bending moment 

 
Explanation:

8.An R.C.C. roof slab is designed as a two way slab if

  • AIt supports live loads in both directions 
  • BThe ratio of spans in two directions is less than 2 
  • CThe slab is continuous over two supports 
  • DThe slab is discontinuous at edges 
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Correct Answer : (B)

The ratio of spans in two directions is less than 2

 
Explanation:

9.The advantage of a concrete pile over a timber pile, is

  • ANo decay due to termites 
  • BNo restriction on length 
  • CHigher bearing capacity 
  • DAll the above 
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Correct Answer : (D)

All the above

 
Explanation:

10.The live load to be considered for an inaccessible roof, is

  • ANil
  • B75 kg/m²
  • C150 kg/cm²
  • D200 kg/m²
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Correct Answer : (B)

75 kg/m²
Explanation:

11.The live load to be considered for an accessible roof, is

  • ANil
  • B75 kg/m³
  • C150 kg/m²
  • D200 kg/cm²
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Correct Answer : (C)

150 kg/m²
Explanation:

12.An under-reinforced section means

  • ASteel is provided at the underside only
  • BSteel provided is insufficient
  • CSteel provided on one face only
  • DSteel will yield first
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Correct Answer : (D)

Steel will yield first
Explanation:

13.The horizontal portion of a step in a stairs case, is known as

  • ARise
  • BFlight
  • CWinder
  • DTread
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Correct Answer : (D)

Tread
Explanation:

14.The load stress of a section can be reduced by

  • ADecreasing the lever arm
  • BIncreasing the total perimeter of bars
  • CReplacing larger bars by greater number of small bars
  • DReplacing smaller bars by greater number of greater bars
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Correct Answer : (C)

Replacing larger bars by greater number of small bars
Explanation:

15.If the maximum shear stress at the end of a simply supported R.C.C. beam of 6 m effective span is 10 kg/cm², the share stirrups are provided for a distance ‘x’ from either end where, ‘x’ is

  • A50 cm
  • B100 cm
  • C150 cm
  • D200 cm
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Correct Answer : (C)

150 cm
Explanation:

16.A circular slab subjected to external loading, deflects to form a

  • ASemi-hemisphere
  • BEllipsoid
  • CParaboloid
  • DNone of these
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Correct Answer : (C)

Paraboloid
Explanation:

17.For the design of a simply supported T-beam the ratio of the effective span to the overall depth of the beam is limited to

  • A10
  • B15
  • C20
  • D25
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Correct Answer : (C)

20
Explanation:

18.For a continuous floor slab supported on beams, the ratio of end span length and intermediate span length, is

  • A0.6
  • B0.7
  • C0.8
  • D0.9
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Correct Answer : (D)

0.9
Explanation:

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

  • AWith the horizontal
  • BWith the vertical
  • CWith the perpendicular to the inclined plane of the soil
  • DNone of these
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Correct Answer : (A)

With the horizontal
Explanation:

20.A pre-stressed concrete member

  • AIs made of concrete
  • BIs made of reinforced concrete
  • CIs stressed after casting
  • DPossesses internal stresses
Answer / Hint Save Question Comment On Question
Correct Answer : (D)

Possesses internal stresses
Explanation:

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