Home » Civil Engineering » Civil Engineering MCQ » RCC Structures Design MCQ

RCC Structures Design MCQ

1.The minimum clear cover for R.C.C. columns shall be

  • AGreater of 40 mm or diameter
  • BSmaller of 40 mm or diameter
  • CGreater of 25 mm or diameter
  • DSmaller of 25 mm or diameter
Answer / Hint Save Question Comment On Question
Correct Answer : (C)

Greater of 25 mm or diameter
Explanation:

2.An R.C.C beam of 25 cm width has a clear span of 5 metres and carries a U.D.L. of 2000 kg/m inclusive of its self weight. If the lever arm of the section is 45 cm., the beam is

  • ASafe in shear
  • BIs safe with stirrups
  • CIs safe with stirrups and inclined members
  • DNeeds revision of the section
Answer / Hint Save Question
Correct Answer : (A)

Safe in shear
Explanation:

3.If the ratio of long and short spans of a two way slab with corners held down is r, the actual reduction of B.M. is given by

  • A(5/6) (r/1 + r²) M
  • B(5/6) (r²/1 + r²) M
  • C(5/6) (r²/1 + r³) M
  • D(5/6) (r²/1 + r⁴) M
Answer / Hint Save Question
Correct Answer : (D)

(5/6) (r²/1 + r⁴) M
Explanation:

4.In a pre-stressed beam carrying an external load W with a bent tendon is having angle of inclination θ  and pre-stressed load P. The net downward load at the centre is

  • AW - 2P cos θ
  • BW - P cos θ
  • CW - P sin θ
  • DW - 2P sin θ
Answer / Hint Save Question
Correct Answer : (D)

W - 2P sin θ
Explanation:

5.Total pressure on the vertical face of a retaining wall of height h acts parallel to free surface and from the base at a distance of

  • Ah/4
  • Bh/3
  • Ch/2
  • D2h/3
Answer / Hint Save Question Comment On Question
Correct Answer : (B)

h/3
Explanation:

6.As per IS : 456, the reinforcement in a column should not be less than

  • A0.5% and not more than 5% of cross-sectional area
  • B0.6% and not more than 6% of cross-sectional area
  • C0.7% and not more than 7% of cross-sectional area
  • D0.8% and not more than 8% of cross-sectional area
Answer / Hint Save Question Comment On Question
Correct Answer : (D)

0.8% and not more than 8% of cross-sectional area
Explanation:

7.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

  • AWL/P
  • BWL/2P
  • CWL/3P
  • DWL/4P
Answer / Hint Save Question Comment On Question
Correct Answer : (C)

WL/3P
Explanation:

8.On piles, the drop must be at least

  • A80 cm
  • B100 cm
  • C120 cm
  • D140 cm
Answer / Hint Save Question Comment On Question
Correct Answer : (C)

120 cm
Explanation:

9.In a combined footing for two columns carrying unequal loads, the maximum hogging bending moment occurs at

  • ALess loaded column
  • BMore loaded column
  • CA point of the maximum shear force
  • DA point of zero shear force
Answer / Hint Save Question Comment On Question
Correct Answer : (D)

A point of zero shear force
Explanation:

10.If L is the effective span of a R.C.C. beam which is subjected to maximum shear qmax at the ends, the distance from either end over which stirrups for the shear, are provided, is

  • A(L/2) (1 - 3/qmax)
  • B(L/3) (1 - 5/qmax)
  • C(L/2) (1 - 5/qmax)
  • D(L/2) (1 - 2/qmax)
Answer / Hint Save Question
Correct Answer : (C)

(L/2) (1 - 5/qmax)
Explanation:

11.In a simply supported slab, alternate bars are curtailed at

  • A1/4th of the span
  • B1/5th of the span
  • C1/6th of the span
  • D1/7th of the span
Answer / Hint Save Question Comment On Question
Correct Answer : (D)

1/7th of the span
Explanation:

12.In a pre-stressed member it is advisable to use

  • ALow strength concrete only
  • BHigh strength concrete only
  • CLow strength concrete but high tensile steel
  • DHigh strength concrete and high tensile steel
Answer / Hint Save Question Comment On Question
Correct Answer : (D)

High strength concrete and high tensile steel
Explanation:

13.If the shear stress in a R.C.C. beam is

  • AEqual or less than 5 kg/cm², no shear reinforcement is provided
  • BGreater than 4 kg/cm², but less than 20 kg/cm², shear reinforcement is provided
  • CGreater than 20 kg/cm², the size of the section is changed
  • DAll the above
Answer / Hint Save Question Comment On Question
Correct Answer : (D)

All the above
Explanation:

14.Distribution of shear intensity over a rectangular section of a beam, follows

  • AA circular curve
  • BA straight line
  • CA parabolic curve
  • DAn elliptical curve
Answer / Hint Save Question Comment On Question
Correct Answer : (C)

A parabolic curve
Explanation:

15.If W is total load per unit area on a panel, D is the diameter of the column head, L is the span in two directions, then the sum of the maximum positive bending moment and average of the negative bending moment for the design of the span of a square flat slab, should not be less than

  • AWL/12 (L - 2D/3)²
  • BWL/10 (L + 2D/3)²
  • CWL/10 (L - 2D/3)²
  • DWL/12 (L - D/3)²
Answer / Hint Save Question
Correct Answer : (C)

WL/10 (L - 2D/3)²
Explanation:

16.Minimum spacing between horizontal parallel reinforcement of different sizes, should not be less than

  • AOne diameter of thinner bar
  • BOne diameter of thicker bar
  • CTwice the diameter of thinner bar
  • DNone of these
Answer / Hint Save Question Comment On Question
Correct Answer : (B)

One diameter of thicker bar
Explanation:

17.Minimum spacing between horizontal parallel reinforcement of the same size should not be less than

  • AOne diameter
  • B2.5 diameters
  • C3 diameters
  • D3.5 diameters
Answer / Hint Save Question Comment On Question
Correct Answer : (A)

One diameter
Explanation:

18.The diameter of main bars in R.C.C. columns, shall not be less than

  • A6 mm
  • B8 mm
  • C10 mm
  • D12 mm
Answer / Hint Save Question Comment On Question
Correct Answer : (D)

12 mm
Explanation:

19.If the diameter of longitudinal bars of a square column is 16 mm, the diameter of lateral ties should not be less than

  • A4 mm
  • B5 mm
  • C6 mm
  • D8 mm
Answer / Hint Save Question Comment On Question
Correct Answer : (C)

6 mm
Explanation:

20.If the sides of a slab simply supported on edges and spanning in two directions are equal, the maximum bending moment is multiplied by

  • A0.2
  • B0.3
  • C0.4
  • D0.5
Answer / Hint Save Question Comment On Question
Correct Answer : (D)

0.5
Explanation:

Morning Exam

Morningexam.com provides Electrical MCQs, Notes, Exam Materials and Online Test series for your Competitive exams. You can also get Current Affairs, GK, Aptitude, Verbal Ability, and Reasoning questions. Best for ITI and Diploma Students.

Quick Links

Contact us

Have questions, comments or just want to say hello:

Follow Us

Copyright 2024 All rights reserved. Developed by Sucharita Banerjee