Q.1) A twisted bar has about ………. more yield stress than ordinary mild steel bar.
A) 10%
B) 20%
C) 35%
D) 50%
Option (D)
Q.2) In a reinforced concrete beam, the shear stress distribution above the neutral axis follows a :
A) Straight line
B) Circular curve
C) Parabolic curve
D) None of the above
Option (C)
Q.3) The diagonal tension in concrete can be resisted by providing –
A) Diagonal tension reinforcement
B) Shear reinforcement
C) Inclined tension reinforcement
D) All of the above
Option (A)
Q.4) The spacing of vertical stirrups in a rectangular beam is :
A) Maximum near the supports
B) Minimum near the supports
C) Maximum near the centre
D) Minimum near the centre
Option (B)
Q.5) In the case of deformed bars, the value of bond stress for various grades of concrete is greater by………than the plain bars.
A) 10%
B) 20%
C) 30%
D) 40%
Option (B)
Q.6) The maximum spacing of vertical reinforcement in R.C.C. wall should not exceed…….the thickness of wall.
A) 1 times
B) 1.5 times
C) 2 times
D) 3 times
Option (D)
Q.7) A doubly reinforced beam is considered less economical than a singly reinforced beam because –
A) Shear reinforcement is more
B) Compressive steel is under stressed
C) Tensile steel required is more than the balanced section
D) Concrete is not stressed to its full value
Option (A)
Q.8) If the area of tensile steel reinforcement is doubled, the moment of resistance of the beam increases only by about –
A) 12%
B) 22%
C) 32%
D) 42%
Option (B)
Q.9) The assumed overall depth of the T-beam is taken as……..of the span when it is simply supported at ends.
A) 1/10 to 1/12
B) 1/12 to 1/15
C) 1/15 to 1/20
D) 1/20 to 1/25
Option (B)
Q.10) A T-beam behaves like a rectangular beam of width equal to its flange, if neutral axis :
A) Remains outside the flange
B) Remains within the flange
C) Remains below the slab
D) None of the above
Option (B)
Q.11) When a vertical member is carrying mainly axial loads, it is termed as :
A) Strut
B) Column
C) Tie
D) None of the above
Option (B)
Q.12) The purpose of lateral ties in short reinforced concrete columns is to –
A) Facilitate construction
B) Facilitate compaction of concrete
C) Avoid buckling of longitudinal bars
D) Increase in load carrying capacity of the column
Option (C)
Q.13) The diameter of longitudinal bars in a column should not be less than –
A) 4 mm
B) 8 mm
C) 12 mm
D) 16 mm
Option (C)
Q.14) For a longitudinal reinforcing bar in a column, the cover should not be less than –
A) 10 mm
B) 20 mm
C) 30 mm
D) 40 mm
Option (D)
Q.15) For a simply supported slabs spanning in one direction, the ratio of span to overall depth should not exceed :
A) 15
B) 20
C) 30
D) 50
Option (C)
Q.16) The shrinkage in concrete slab :
A) Causes shear cracks
B) Causes tension cracks
C) Causes compression cracks
D) Does not cause any cracking
Option (B)
Q.17) In a simply supported slab, alternate bars are curtailed at –
A) 1/5th of span
B) 1/6th of span
C) 1/7th of span
D) 1/8th of span
Option (C)
Q.18) For a slab spanning in two directions, the ratio of span to the depth of slab should not exceed –
A) 10
B) 20
C) 35
D) 50
Option (C)
Q.19) The column head of a flat slab –
A) Increases rigidity of the slab and column connection
B) Decreases resistance of the slab to shear
C) Increases the effective span of the slab
D) None of the above
Option (A)
Q.20) The drops are provided in flat slabs to resist –
A) Torsion
B) Bending moment
C) Thrust
D) Shear
Option (D)
