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 .

Cube strength of controlled concrete to be used for pretensioned and post-tensioned work respectively should not be less than

A) 35 MPa and 42 MPa B) 42 MPa and 35 MPa C) 42 MPa and 53 MPa D) 53 MPa and 42 MPa

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Answer & Solution

Answer: Option B

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The individual variation between test strength of sample should not be more than

A) ±5% of average B) ±10% of average C) ±15% of average D) ±20% of average

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Answer & Solution

Answer: Option C

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Workability of concrete is inversely proportional to

A) Time of transit B) Vater-cement ratio C) The air in the mix D) Size of aggregate

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Answer & Solution

Answer: Option A

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For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus correction factor to the moments obtained by Grashoff Rankine’s theory

A) Is always less than 1 B) Is always greater than 1 C) Can be more than 1 D) Can be less than 1

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Answer & Solution

Answer: Option A

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To determine the modulus of rupture, the size of test specimen used is

A) 150 x 150 x 500 mm B) 100 x 100 x 700 mm C) 150 x 150 x 700 mm D) 100 x 100 x 500 mm

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Answer & Solution

Answer: Option C

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High carbon content in the steel causes

A) Decrease in tensile strength but increase in ductility B) Increase in tensile strength but decrease in ductility C) Decrease in both tensile strength and ductility D) Increase in both tensile strength and ductility

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Answer & Solution

Answer: Option B

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The slab is designed as one way if the ratio of long span to short span is

A) Less than 1 B) Between 1 and 1.5 C) Between 1.5 and 2 D) Greater than 2

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Answer & Solution

Answer: Option D

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A continuous beam is deemed to be a deep beam when the ratio of effective span to overall depth (1/D) is less than

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

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Answer & Solution

Answer: Option C

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According to IS : 456-1978, minimum slenderness ratio for a short column is

A) Less than 12 B) Less than 18 C) Between 18 and 24 D) More than 24

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Answer & Solution

Answer: Option A

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Maximum percentage reinforcement in case of slabs is limited to

A) 2 B) 4 C) 6 D) 8

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Answer & Solution

Answer: Option B

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