# 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/cm

^{2}

- (B) 100 kg/cm

^{2}

- (C) 250 kg/cm

^{2}

- (D) 175 kg/cm

^{2}

**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/cm**

^{2}, 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/cm**

^{2}, 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

1

**5. 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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