Q.1) Ordinary concrete is not used for concrete grade….
A) M 10
B) M 15
C) M 25
D) M 40
Option (D)
Q.2) The value of ultimate creep coefficient for concrete :
A) Increases with age of loading
B) Decreases with age of loading
C) Remains constant
D) Is taken as 0.0003
Option (B)
Q.3) Additional cover thickness in reinforced cement concrete members totally immersed in sea water is :
A) 25 mm
B) 30 mm
C) 35 mm
D) 40 mm
Option (D)
Q.4) If the area of tension reinforcement provided is less than that required for a balanced section, then the RCC beam section is called –
A) Over reinforced
B) Neutral reinforced
C) Under reinforced
D) Bottom reinforced
Option (C)
Q.5) In limit state method of design, for bars in compression the values of bond stress shall be :
A) Decreased by 25%
B) Increased by 20%
C) Decreased by 20%
D) Increased by 25%
Option (D)
Q.6) According to Whitney’s theory, the maximum depth of concrete stress block in a balanced RCC beam section of depth ‘d’ is :
A) 0.3 d
B) 0.43 d
C) 0.5 d
D) 0.53 d
Option (D)
Q.7) The section of a reinforced beam where most distant concrete fibre in compression and tension in steel attains permissible stresses simultaneously, is called……..
A) Balanced section
B) Economic section
C) Critical section
D) All of the above
Option (D)
Q.8) When HYSD bars are used in place of mild steel bars, the bond strength :
A) Increases
B) Decreases
C) Does not change
D) Becomes zero
Option (A)
Q.9) The length of the straight portion of a bar beyond the end of the hook should be at least :
A) Twice the diameter
B) Thrice the diameter
C) Four times the diameter
D) Seven times the diameter
Option (C)
Q.10) The purpose of lateral ties in short concrete columns is :
A) To avoid buckling of longitudinal bars
B) To facilitate construction
C) To facilitate compaction of concrete
D) To increase the load carrying capacity
Option (A)
Q.11) Steel bars are generally connected together to get greater length than the standard length by :
A) Straight bar splice
B) Hooked splice
C) Dowel splice
D) All of the above
Option (D)
Q.12) Minimum number of vertical bars in a circular column is :
A) 6
B) 4
C) 5
D) 8
Option (A)
Q.13) Shrinkage in a concrete slab :
A) Causes shear cracks
B) Causes tension cracks
C) Causes compression cracks
D) No effect
Option (B)
Q.14) For walls, columns and vertical faces of all the structural members, the form work is generally removed after :
A) 24 – 45 Hrs
B) 3 days
C) 7 days
D) 14 days
Option (A)
Q.15) The minimum cover of slab should neither be less than the diameter of bar nor less than….
A) 10 mm
B) 15 mm
C) 25 mm
D) 13 mm
Option (C)
Q.16) Side face reinforcement shall be provided in the reinforced concrete beam when depth of web in the beam exceeds –
A) 500 mm
B) 750 mm
C) 1000 mm
D) 1200 mm
Option (B)
Q.17) The floor slab of a building is supported on reinforced cement floor beams. The ratio of the end and intermediate spans is kept at :
A) 0.7
B) 0.8
C) 0.9
D) 0.6
Option (C)
Q.18) The purpose of reinforcement in prestressed concrete is –
A) To provide adequate bond stress
B) To resist tensile stresses
C) To impart initial compressive stress in concrete
D) All of the above
Option (A)
Q.19) The maximum diameter of a bar used in ribbed slab is –
A) 12 mm
B) 6 mm
C) 20 mm
D) 22 mm
Option (D)
Q.20) The most economical section for a column is –
A) Rectangular
B) Solid round
C) Flat strip
D) Tubular section
Option (D)
