Concrete Technology And Design Of Concrete Structures MCQ Questions & Answers

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Each section contains 100 MCQs on Concrete Technology and Design of Concrete Structures .

To minimize the effect of differential settlement, the area of a footing should be designed for

A) Dead load only B) Dead load + live load C) Dead load + fraction of live load D) Live load + fraction of dead load

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Answer & Solution

Answer: Option C

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The load carrying capacity of a helically reinforced column as compared to that of a tied column is about

A) 5% less B) 10% less C) 5% more D) 10% more

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Answer & Solution

Answer: Option C

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If the permissible stress in steel in tension is 140 N/mm², then the depth of neutral axis for a singly reinforced rectangular balanced section will be

A) 0.35 d B) 0.40 d C) 0.45 d D) Dependent on grade of concrete also

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Answer & Solution

Answer: Option B

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Maximum quantity of water needed per 50 kg of cement for M 15 grade of concrete is

A) 28 liters B) 30 liters C) 32 liters D) 34 liters

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Answer & Solution

Answer: Option C

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A higher modular ratio shows

A) Higher compressive strength of concrete B) Lower compressive strength of concrete C) Higher tensile strength of steel D) Lower tensile strength of steel

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Answer & Solution

Answer: Option B

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Normally prestressing wires are arranged in the

A) Upper part of the beam B) Lower part of the beam C) Center D) Anywhere

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Answer & Solution

Answer: Option B

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Modulus of rupture of concrete is a measure of

A) Flexural tensile strength B) Direct tensile strength C) Compressive strength D) Split tensile strength

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Answer & Solution

Answer: Option A

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In order to obtain the best workability of concrete, the preferred shape of aggregate is

A) Rounded B) Elongated C) Angular D) All of the above

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Answer & Solution

Answer: Option A

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In a counterfort retaining wall, the main reinforcement is provided on the
i) bottom face in front counterfort
ii) inclined face in front counterfort
iii) bottom face in back counterfort
iv) inclined face in back counterEort
The correct answer is

A) (i) and (ii), B) (ii) and (iii) C) (i) and (iv) D) (iii) and (iv)

Discuss

Answer & Solution

Answer: Option C

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The effect of adding calcium chloride in concrete is
i) to increase shrinkage
ii) to decrease shrinkage
iii) to increase setting time
iv) to decrease setting time
The correct answer is

A) (i) and (iii) B) (i) and (iv) C) (ii) and (iii) D) (ii) and (iv)

Discuss

Answer & Solution

Answer: Option B

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