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free steel mcqs

R.C.C.| MCQ – 03 | 20 MCQs

Posted on August 3, 2021March 17, 2023 By Civil Vedant

Q.1) A RCC beam can have maximum tension reinforcement as –

A) 6% bD

B) 2% bD

C) 3% bD

D) 4% bD

Answer

Option (D)

Q.2) Characteristic strength of concrete is measured at –

A) 14 days

B) 28 days

C) 21 days

D) 7 days

Answer

Option (B)

Q.3) According to IS:456-2000, the maximum reinforcement in a column is :

A) 4%

B) 2%

C) 6%

D) 8%

Answer

Option (C)

Q.4) In limit state of collapse for direct compression, the maximum axial compressive strain in concrete is –

A) 0.002

B) 0.003

C) 0.0035

D) 0.004

Answer

Option (A)

Q.5) The characteristic strength of concrete is defined as that strength below which not more than……….of the test results are expected to fall.

A) 10%

B) 5%

C) 15%

D) 20%

Answer

Option (B)

Q.6) As per IS:456-2000, in the absence of test data the approximate value of the total shrinkage strain for design may be taken as :

A) 0.004

B) 0.001

C) 0.002

D) 0.0003

Answer

Option (D)

Q.7) The permissible stress to which a structural member can be subjected to, is known as –

A) Bearing stress

B) Working stress

C) Tensile stress

D) Compressive stress

Answer

Option (B)

Q.8) The approximate allowable stress in axial compression in reinforced concrete is –

A) 0.25 fck

B) 0.44 fck

C) 0.33 fck

D) 0.30 fck

Answer

Option (A)

Q.9) In limit state approach, spacing of main reinforcement controls primarily –

A) Collapse

B) Durability

C) Deflection

D) Cracking

Answer

Option (D)

Q.10) In a single reinforced beam, if the permissible stress in concrete reaches earlier than that in steel, the beam section is called –

A) Under-reinforced section

B) Over-reinforced section

C) Balanced section

D) Critical section

Answer

Option (B)

Q.11) Flexure strength of concrete is determined as :

A) Modulus of rigidity

B) Modulus of rupture

C) Modulus of plasticity

D) Modulus of elasticity

Answer

Option (B)

Q.12) The percentage of minimum reinforcement should of the gross sectional area in slabs is :

A) 0.001

B) 0.0012

C) 0.0015

D) 0.0018

Answer

Option (C)

Q.13) The bond strength between steel and concrete is due to –

A) Friction

B) Adhesion

C) Both friction and adhesion

D) None of the above

Answer

Option (C)

Q.14) In limit stage method of design, for HYSD bars the values of bond stress shall be –

A) Increased by 60%

B) Decreased by 60%

C) Increased by 25%

D) Decreased by 25%

Answer

Option (A)

Q.15) The slenderness ratio of lacing bar should not exceed –

A) 100

B) 120

C) 180

D) 145

Answer

Option (D)

Q.16) A construction joint is provided where –

A) Bending moment is small

B) Shear force is small

C) The member is supported by other member

D) All of the above

Answer

Option (D)

Q.17) The anchorage value of a hook is assumed 16 times the diameter (φ) of the bar, if the angle of the bend is –

A)300

B)400

C)450

D)1800

Answer

Option (D)

Q.18) Minimum percentage of HYSD steel in a RCC slab is –

A) 0.1% bD

B) 0.12% bD

C) 0.15% bD

D) 0.2% bD

Answer

Option (B)

Q.19) Maximum permitted spacing of main bars in a slab is –

A) 100 mm

B) 3d

C) 5d

D) 450 mm

Answer

Option (B)

Q.20) When slenderness ratio in a column lies between 32 to 120, it is known as –

A) Long column

B) Short column

C) Medium column

D) Stocky column

Answer

Option (C)

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RCC & Steel Tags:civil engineering questions mcq, rcc mcqs, rcc objectives

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