Q.1) The maximum depth of neutral axis for a beam of Fe-415 bars in limit state method of design is :
A) 0.46d
B) 0.48d
C) 0.50d
D) 0.53d
Option (B)
Q.2) The minimum grade of reinforced concrete in sea water as per IS:456-2000 is –
A) M15
B) M20
C) M30
D) M40
Option (C)
Q.3) The characteristic strength of concrete is defined as that compressive strength below which NOT more than :
A) 2% of results fall
B) 10% of results fall
C) 5% of results fall
D) None of the above
Option (C)
Q.4) In a singly reinforced beam, if the permissible stress in concrete reaches earlier than the permissible stress in steel, the beam section is called –
A) Under reinforced section
B) Over reinforced section
C) Balanced section
D) Economic section
Option (B)
Q.5) From limiting deflection point of view, use of high strength steel in RC beam results in :
A) Reduction in depth
B) No change in depth
C) Increase in depth
D) Increase in width
Option (C)
Q.6) Limit state of serviceability of pre-stressed concrete sections should satisfy :
A) Cracking, deflection and maximum compression
B) Cracking only
C) Deflection and cracking
D) Deflection ad maximum compression
Option (C)
Q.7) In the design of pre-stressed concrete structures, which of the following limit states will come under the serviceability limit states?
A) Flexure and cracking
B) Deflection and cracking
C) Shear, deflection and cracking
D) Shear and deflection
Option (B)
Q.8) As per IS specifications, the nominal concrete cover for moderate exposure should not be less than –
A) 20 mm
B) 30 mm
C) 45 mm
D) 50 mm
Option (B)
Q.9) By over-reinforcing a beam, the moment of resistance can be increased not more than :
A) 10%
B) 15%
C) 20%
D) 25%
Option (D)
Q.10) In a singly reinforced beam, the effective depth is measured from its compression edge to :
A) Tensile edge
B) Tensile reinforcement
C) Neutral axis of beam
D) Longitudinal central axis
Option (B)
Q.11) Torsion resisting capacity of a given reinforce concrete section –
A) Decreases with decrease in stirrup spacing
B) Decreases with increase in longitudinal bars
C) Does not depend upon stirrup and longitudinal steels
D) Increases with increase in stirrups and longitudinal steels
Option (D)
Q.12) Spacing in stirrups in a rectangular beam is –
A) Kept constant throughout the length
B) Decreased towards the center of the beam
C) Increased at the ends
D) Increased at the center of the beam
Option (D)
Q.13) Dimension of a beam need be changed if the shear stress is more than –
A) 5 kg/cm2
B) 10 kg/cm2
C) 15 kg/cm2
D) 20 kg/cm2
Option (D)
Q.14) In a combined footing if shear stress does not exceed 5kg/cm2, the nominal stirrups provided are –
A) 6 legged
B) 8 legged
C) 10 legged
D) 12 legged
Option (B)
Q.15) The critical section for two-way shear in an isolated spread footing is at the :
A) Face of the column
B) Distance 1.5d from column face
C) Distance d from column face
D) Distance d/2 from column face
Option (D)
Q.16) Minimum spacing between horizontal parallel reinforcements of different sizes should not be less than :
A) One diameter of thinner
B) One diameter of thicker bar
C) Sum of diameter of thinner and thicker bars
D) Twice the diameter of thinner bar
Option (B)
Q.17) A slender section buckle locally :
A) After reaching yield moment
B) As soon as it reaches ultimate moment
C) Before reaching yield moment
D) As soon as it reaches yield moment
Option (C)
Q.18) A cantilever retaining wall should NOT be used for heights greater than :
A) 4 m
B) 6 m
C) 8 m
D) 10 m
Option (B)
Q.19) The minimum clear cover for the main reinforcement in column, according to IS:456-2000 is –
A) 20 mm
B) 25 mm
C) 40 mm
D) 50 mm
Option (C)
Q.20) A RCC column is regarded as long column if the ratio of its unsupported length between end restraints to least lateral dimension is more than :
A) 25
B) 150
C) 125
D) 60
Option (D)
