Concrete Technology And Design Of Concrete Structures MCQ Questions & Answers

Concrete Technology And Design Of Concrete Structures MCQ Questions & Answers | Civil Engineering

Learn Concrete Technology And Design Of Concrete Structures MCQ questions & answers are available for a Civil Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Concrete Technology And Design Of Concrete Structures MCQ question is the important chapter for a Civil Engineering and GATE students. Page-1 section-2

For the design of retaining walls, the minimum factor of safety against overturning is taken as

A) 1.5 B) 2.0 C) 2.5 D) 3.0

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Answer & Solution

Answer: Option B

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The minimum diameter of longitudinal bars in a column is

A) 6 mm B) 8 mm C) 12 mm D) 16 mm

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Answer & Solution

Answer: Option C

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Maximum distance between expansion joints in structures as per IS : 456-1978 is

A) 20 m B) 30 m C) 45 m D) 60 m

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Answer & Solution

Answer: Option C

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The fineness modulus of fine aggregate is in the range of

A) 2.0 to 3.5 B) 3.5 to 5.0 C) 5.0 to 7.0 D) 6.0 to 8.5

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Answer & Solution

Answer: Option A

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If the storey height is equal to length of RCC wall, the percentage increase in strength is

A) 0 B) 10 C) 20 D) 30

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Answer & Solution

Answer: Option B

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Modulus of elasticity of steel as per IS : 456-1978 shall be taken as

A) 20 kN/cm² B) 200 kN/cm² C) 200 kN/mm² D) 250 kN/mm²

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Answer & Solution

Answer: Option C

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The main reason for providing number of reinforcing bars at a support in a simply supported beam is to resist in that zone

A) Compressive stress B) Shear stress C) Bond stress D) Tensile stress

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Answer & Solution

Answer: Option D

Solution:

In a simply supported beam, the primary purpose of providing reinforcement bars at the support is to resist tensile stress.

At the supports, the top fibers of the beam experience compression, while the bottom fibers experience tension.

To resist this tension, reinforcing bars (tensile reinforcement) are provided at the bottom near the supports.

This reinforcement ensures that the beam can safely handle the tensile forces, preventing cracking or failure in that zone.

The ratio of the diameter of reinforcing bars and the slab thickness is

A) $$\frac{1}{4}$$ B) $$\frac{1}{5}$$ C) $$\frac{1}{6}$$ D) $$\frac{1}{8}$$

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Answer & Solution

Answer: Option D

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1% of voids in a concrete mix would reduce its strength by about

A) 5% B) 10% C) 15% D) 20%

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Answer & Solution

Answer: Option A

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The strength of concrete after one year as compared to 28 days strength is about

A) 10 to 15% more B) 15 to 20% more C) 20 to 25% more D) 25 to 50% more

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Answer & Solution

Answer: Option C

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