Practice Test: Question Set - 13
1. If d and n are the effective depth and depth of the neutral axis respectively of a singly reinforced beam, the lever arm of the beam, is
- (A) d
- (B) n
- (C) d + n/3
- (D) d - n/3
2. The weight of a foundation is assumed as
- (A) 5% of wall
weight
- (B) 7% of wall
weight
- (C) 10% of wall
weight
- (D) 12% of wall
weight
3. An R.C.C. column of 30 cm diameter is reinforced with 6 bars 12 mm φ placed symmetrically along the circumference. If it carries a load of 40,000 kg axially, the stress is
- (A) 49.9 kg/cm2
- (B) 100 kg/cm2
- (C) 250 kg/cm2
- (D) 175 kg/cm2
4. If the diameter of longitudinal bars of a square column is 16 mm, the diameter of lateral ties should not be less than
- (A) 4
mm
- (B) 5 mm
- (C) 6 mm
- (D) 8 mm
5. Design of R.C.C. cantilever beams, is based on the resultant force at
- (A) Fixed
end
- (B) Free
end
- (C) Mid
span
- (D) Mid
span and fixed support
6. In a combined footing if shear stress does not exceed 5 kg/cm2, the nominal stirrups provided are
- (A) 6
legged
- (B) 8
legged
- (C) 10
legged
- (D) 12
legged
7. The maximum shear stress (q) in concrete of a reinforced cement concrete beam is
- (A) Shear
force/(Lever arm × Width)
- (B) Lever
arm/(Shear force × Width)
- (C) Width/(Lever
arm × Shear force)
- (D) (Shear force
× Width)/Lever arm
8. An R.C.C. column is treated as long if its slenderness ratio is greater than
- (A) 30
- (B) 35
- (C) 40
- (D) 50
9. The thickness of base slab of a retaining wall generally provided, is
- (A) One half of
the width of the stem at the bottom
- (B) One-third of
the width of the stem at the bottom
- (C) One fourth
of the width of the steam at the bottom
- (D) Width of the
stem at the bottom
10. Design of R.C.C. simply supported beams carrying U.D.L. is based on the resultant B.M. at
- (A) Supports
- (B) Mid span
- (C) Every
section
- (D) Quarter span
11. If the maximum shear stress at the end of a simply supported R.C.C. beam of 6 m effective span is 10 kg/cm2, the share stirrups are provided for a distance ‘x’ from either end where, ‘x’ is
- (A) 50 cm
- (B) 100 cm
- (C) 150 cm
- (D) 200 cm
12. Distribution reinforcement in a simply supported slab, is provided to distribute
- (A) Load
- (B) Temperature
stress
- (C) Shrinkage
stress
- (D) All
the above
13. Distribution of shear intensity over a rectangular section of a beam, follows:
- (A) A
circular curve
- (B) A
straight line
- (C) A
parabolic curve
- (D) An
elliptical curve
14. In a singly 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) Economic
section
- (D) Critical
section
15. If the size of a column is reduced above the floor, the main bars of the columns, are
- (A) Continued up
- (B) Bent inward
at the floor level
- (C) Stopped
just below the floor level and separate lap bars provided
- (D) All
the above
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