design of concrete structures MCQs – Page 6

Practise focused design of concrete structures questions with marked answers for exam preparation and subject revision.

design of concrete structures Mcqs
101. The main reinforcement in the toe of a T- shaped R C. retaining wall is provided on_______________?
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A. ="color: #003f1a;">1. top face parallel to the wall

B. correct answer is ?

C. e="color: #003f1a;">2. top face perpendicular to the wall
D. e="color: #003f1a;">4. bottom face perpendicular to the wall
E. e="color: #003f1a;">3. bottom face paralleUo the wall
102. In a ring beam subjected to uniformly distributed load______________?
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A. e="color: #003f1a;">4. torsion at mid span is maximum

B. correct answer is ?

C. e="color: #003f1a;">3. torsion at mid span is zero
D. e="color: #003f1a;">2. shear force at mid span is maximum
E. ="color: #003f1a;">1. shear force at mid span is zero
103. The recommended value of modular ratio for reinforced brick work is______________?
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A. 40

B. 30

C. 18

D. 58

104. Select the correct statement?
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A. High tensile steel is cheaper than mild steel

B. Elastic modulus of high tensile steel is more than that of mild steel

C. Elastic modulus of high tensile steel is nearly the same as that of mild steel

D. Carbon percentage in high carbon steel is less than that in mild steel

105. Select the correct statement?
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A. Elastic modulus of high tensile steel is nearly the same as that of mild steel

B. High tensile steel is cheaper than mild steel

C. Elastic modulus of high tensile steel is more than that of mild steel

D. Carbon percentage in high carbon steel is less than that in mild steel

106. The design yield stress of steel according to IS: 456-1978 is_______________?
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A. 0.87 fy

B. 0.57 fy

C. 0.37 fy

D. 0.67 fy

107. Assertion A : The load factor for live load is greater than that for dead load. Reason R : The live loads are more uncertain than dead loads?
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A. ect your answer based on the coding system given below :

108. The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of__________________?
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A. 0.367 xu

B. 0.573 xu

C. 0.416 xu

D. 0.446 xu

109. The load factors for live load and dead load are taken respectively as_________________?
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A. 2.2 and 1.5

B. 2.2 and 2.2

C. 1.5 and 2.2

D. 1.5 and 1.5

110. High carbon content in the steel causes_______________?
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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

111. As per Whitneys theory, the maximum moment of resistance of the balanced section of a beam of width b and effective depth d is given by_______________?
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A. 0.43acybd2

B. ^acybd2

C. 0.185acybd2

D. re acy is the cylinder compressive strength of concrete

E. ^acybd2

112. According to Whitneys theory, ultimate strain of concrete is assumed to be_____________?
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A. 3%

B. 0.3%

C. 0.03%

D. 0.10%

113. In T-shaped R C. retaining walls, the main reinforcement in the stem is provided on______________?
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A. the front face in one direction

B. the front face in both directions

C. the inner face in one direction

D. the inner face in both directions

114. The depth of footing for an isolated column is governed by______________?
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A. pan style="color: #003f1a;">2. shear force
B. an style="color: #003f1a;">1. maximum bending moment
C. pan style="color: #003f1a;">3. punching shear

D. correct answer is?

115. In a spherical dome subjected to concentrated load at crown or uniformly distributed load, the meridional force is always________________?
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A. zero

B. tensile

C. compressive

D. tensile or compressive

116. Which of the following losses of prestress occurs only in pretensioning and not in post-tensioning ?
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A. elastic shortening of concrete

B. loss due to friction

C. creep of concrete

D. shrinkage of concrete

117. A beam curved in plan is designed for_______________?
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A. bending moment and torsion

B. shear and torsion

C. bending moment and shear

D. bending moment, shear and torsion
118. The effect of adding calcium chloride in concrete is________________?
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A. e="color: #003f1a;">2. to decrease shrinkage

B. (1) and (3)

C. (2)and (4)

D. ="color: #003f1a;">1. to increase shrinkage

E. correct answer is?

F. e="color: #003f1a;">4. to decrease setting time
119. If the foundations of all the columns of a structure are designed on the total live and dead load basis, then_________________?
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A. the settlement of exterior columns will be more than interior columns

B. there will be no differential settlement

C. there will be no settlement of columns

D. the settlement of interior columns will be more than exterior columns

120. Shrinkage of concrete depends upon_____________?
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A. pan style="color: #003f1a;">2. passage of time
B. an style="color: #003f1a;">1. humidity of atmosphere

C. correct answer is?

D. pan style="color: #003f1a;">3. stress