Practice Test: Question Set - 10
1. Based on punching shear consideration, the overall depth of a combined footing under a column A, is
- (A) (Area of the
column A × Safe punching stress)/Load
on column A
- (B) (Perimeter
of column A × Safe punching
stress)/(Load on column A + Upward
pressure × Area of the column)
- (C) (Perimeter
of column A × Safe punching
stress)/(Load on column A × Upward
pressure × Area of the column)
- (D) None of
these
2. Pick up the correct statement from the following:
- (A) A pile is a
slender member which transfers the load through its lower end on a strong
strata
- (B) A pile is a
slender member which transfers its load to the surrounding soil
- (C) A pile is a
slender member which transfers its load by friction
- (D) A
pile is a cylindrical body of concrete which transfers the load at a depth
greater than its width
3. In a combined footing if shear stress exceeds 5 kg/cm2, the nominal stirrups provided are:
- (A) 6 legged
- (B) 8 legged
- (C) 10 legged
- (D) 12 legged
4. The weight of reinforced concrete, is generally taken as
- (A) 2200 kg/m3
- (B) 2300 kg/m3
- (C) 2400 kg/m3
- (D) 2500 kg/m3
5. If W is the load on a circular slab of radius R, the maximum circumferential moment at the centre of the slab, is
- (A) WR²/16
- (B) 2WR²/16
- (C) 3WR²/16
- (D) Zero
6. If ‘W’ is weight of a retaining wall and ‘P’ is the horizontal earth pressure, the factor of safety against sliding, is
- (A) 1.0
- (B) 1.25
- (C) 1.5
- (D) 2.0
7. The effective span of a simply supported slab, is
- (A) Distance
between the centers of the bearings
- (B) Clear
distance between the inner faces of the walls plus twice the thickness of the
wall
- (C) Clear span
plus effective depth of the slab
- (D) None of
these
8. In a beam the local bond stress Sb, is equal to
- (A) Shear
force/(Leaver arm × Total perimeter of reinforcement)
- (B) Total
perimeter of reinforcement/(Leaver arm × Shear force)
- (C) Leaver
arm/(Shear force × Total perimeter of reinforcement)
- (D) Leaver
arm/(Bending moment × Total perimeter of reinforcement)
9. A continuous beam shall be deemed to be a deep beam if the ratio of effective span to overall depth, is
- (A) 2.5
- (B) 2.0
- (C) Less than 2
- (D) Less than
2.5
10. With usual notations the depth of the neutral axis of a balanced section, is given by
- (A) mc/t
= (d - n)/n
- (B) t/mc
= (d - n)/n
- (C) t/mc
= (d + n)/n
- (D) mc/t
= n/(d - n)
11. Pick up the true statement from the following:
- (A) Plain
ceiling provides the best property diffusing light
- (B) In the
absence of beams, it is easier to install piping
- (C) In the
absence of beams, it is easier to paint
- (D) All the
above
12. If the maximum shear stress at the end of a simply supported R.C.C. beam of 16 m effective span is 10 kg/cm2, the length of the beam having nominal reinforcement, is
- (A) 12 cm
- (B) 6 cm
- (C) 8 cm
- (D) 10 cm
13. If the length of a wall on either side of a lintel opening is at least half of its effective span L, the load W carried by the lintel is equivalent to the weight of brickwork contained in an equilateral triangle, producing a maximum bending moment
- (A) WL/2
- (B) WL/4
- (C) WL/6
- (D) WL/8
14. 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 the
above
15. The length of the lap in a compression member is kept greater than bar diameter x (Permissible stress in bar / Five times the bond stress) or
- (A) 12 bar
diameters
- (B) 18 bar
diameters
- (C) 24 bar
diameters
- (D) 30 bar
diameters
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