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[MCQ’s] Theory And Design Of RCC Structures
1. What does RCC mean in construction?
A. Reinforced Concrete Cement
B. Reinforced Cement Concrete
C. Reinforced Combined Cement
D. Reinforced Constituent Cement
Ans: B
2. The end or side covers for the steel bar may be taken as …………. In RCC work.
A. 7cm to 9cm
B. 6cm to 9cm
C. 4cm to 5cm
D. 3cm to 7cm
Ans: C
3. The cheaper way of protecting rebars is by coating them with calcium sulfate.
A. True
B. False
Ans: A
4. The diameter of the longitudinal bars of a column should never be less than 12 mm.
A. True
B. False
Ans: A
5. How many R.C.C. columns shall be for minimum clear cover?
A. Greater of 25 mm or diameter
B. Smaller of 40 mm or diameter
C. Greater of 25 mm or diameter
D. Smaller of 25 mm or diameter
Ans: A
6. A T-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis ……
A. 1/25th of span
B. 1/40th of span.
C. 1/20th of span
D. None of the above
Ans:B
7. What is the advantage of a concrete pile over a timber pile?
A. Higher bearing capacity
B. No restriction on length
C. No decay due to termites
D. All of the above
Ans:B
8. The effective width of a column strip of a flat slab, is ………..
A. Radius of the column
B. Half the width of the panel
C. Diameter of the column
D. None of the above
Ans:B
9. The Design of R.C.C. cantilever beams, is based on the resultant force at ………..
A. Free end
B. Mid span
C. Fixed end
D. None of the above
Ans:C
10. Distribution reinforcement in a simply supported slab, is provided to distribute
A. Load
B. Shrinkage stress
C. Temperature stress
D. All of the above
Ans:D
11. The amount of reinforcement for main bars in a slab is based upon
A. Minimum shear force
B. Maximum shear force
C. Minimum bending moment
D. Maximum bending moment
Ans:D
12. The advantage of reinforced concrete is due to ………
A. Monolithic character
B. Fire-resisting and durability
C. Economy because of less maintenance cost
D. All of the above
Ans:D
13. The effective span of a simply supported slab is
A. Clear span plus effective depth of the slab
B. Distance between the centres of the bearings
C. Clear distance between the inner faces of the walls plus twice the thickness of the wall
D. None of the above
Ans:C
14. The shear reinforcement in RCC is provided to resist
A. Vertical shear
B. Horizontal shear
C. Diagonal tension
D. Diagonal compression
Ans:C
15. The steel generally used in R.C.C. work, is
A. Mildsteel
B. Stainless
C. High carbon steel
D. High tension steel
Ans: A
16. If the diameter of the main reinforcement in the slab is 16 mm, what will be solid for the main bars?
A. 13 mm
B. 16 mm
C. 14 mm
D. 15 mm
Ans: B
17. What should be the width of the ribbed slab between the two strips?
A. 6 cm to 7.5 cm
B. 10 cm to 12 cm
C. 8 cm to 10 cm
D. 12 cm to 15 cm
Ans: C
18. What is the maximum permissible size of aggregates to be used in casting the ribs of
a slab?
A. 5 mm
B. 15 mm
C. 10 mm
D. 7.5 mm
Ans: C
19. An R.C.C. column is treated as a short column if its slenderness ratio is less than ……..
A. 35
B. 40
C. 50
D. 45
Ans: C
20. Which of the following steel is generally used in RCC work?
A. Stainless
B. Mild steel
C. High carbon steel
D. High tension steel
Ans: B
21.What is the limit state?
a) Acceptable limits for safety and serviceability requirements before failure occurs
b) Acceptable limits for safety and serviceability requirements after failure occurs
c) Acceptable limits for safety after failure occurs
d) Acceptable limits for serviceability after failure occurs
Ans: A
22.Which of the following format is used in limit state method?
a) Single safety factor
b) Multiple safety factor
c) Load factor
d) Wind factor
Ans: B
23.Which of the following factors is included in the limit state of strength?
a) Fire
b) Failure by excessive deformation
c) Corrosion
d) Repairable damage or crack due to fatigue
Ans: B
24.Which of the following factors is included in the limited state of serviceability?
a) Brittle facture
b) Fracture due to fatigue
c) Failure by excessive deformation
d) Deformation and deflection adversely affecting the appearance or effective use of structure
Ans:D
25.What is permanent action according to the classification of actions by IS code?
a) due to self-weight
b) due to construction and service stage loads
c) due to accidents
d) due to earthquake loads
Ans: A
26.What is variable action according to the classification of actions by IS code?
a) due to self-weight
b) due to accidents
c) due to construction and service stage loads
d) due to earthquake loads
Ans: C
27.Which of the following relation is correct?
a) Design Strength = Ultimate strength + Partial factor of safety
b) Design Strength = Ultimate strength – Partial factor of safety
c) Design Strength = Ultimate strength /Partial factor of safety
d) Design Strength = Ultimate strength x Partial factor of safety
Ans: C
28. Which of the following criteria is to be satisfied in the selection of members in the limit state method?
a) Factored Load > Factored Strength
b) Factored Load ≤ Factored Strength
c) Factored Load ≥ Factored Strength
d) Sometimes Factored Load < Factored Strength (or) Factored Load > Factored Strength
Ans: B
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