Objective Questions on Structural Design Specifications - Set 04 - ObjectiveBooks

Objective Questions on Structural Design Specifications - Set 04

Practice Test: Question Set - 04

1. The maximum deflection of a structure should not normally exceed lesser of the span/350 or
    (A) 10 mm
    (B) 15 mm
    (C) 20 mm
    (D) 25 mm

2. If fck is characteristic compressive strength of concrete, the flexural and split tensile strength fcr = a √fck N/mm2 where the value of a is
    (A) 0.4
    (B) 0.5
    (C) 0.6
    (D) 0.7

3. The reduced level of third floor of a building near a column is 205.350 m. The reduced levels of the undersides of four beams supporting the fourth floor framing into the column mutually perpendicular are 208.350 m, 208.450 m, 208.500 m and 208.550 m. The supported length of the column is
    (A) 3.000 m
    (B) 3.100 m
    (C) 3.150 m
    (D) 3.200 m

4. What is the answer to this question?When bending occurs about both axes of the member, the value of fbe in the formula
    (fc/Pc) + (fbe /Pb|> 1 is taken
    (A) Higher value
    (B) Lower value
    (C) Sum of the two
    (D) Difference of the two

5. The grade of plain concrete to be used in sea water or structures exposed to sea water, should be
    (A) M 10
    (B) M 15
    (C) M 20
    (D) M 30

6. If the ends of the compression flanges of simply supported girders are fully restrained against lateral bending, the effective length is taken as
    (A) Span
    (B) 0.85 × span
    (C) 0.7 × span
    (D) 0.5 × span

7. The creep coefficient i.e. the ratio of ultimate creep and elastic strain after
    (A) 7 days is 2.2
    (B) 28 days is 1.6
    (C) 365 days is 1.1
    (D) All the above

8. Pick up the correct statement from the following:
    (A) Flange joints are preferably located at points of maximum stress
    (B) The area of splice plates should be 5% in excess of flange elements spliced
    (C) The C.G. of the flange splice should coincide with that of the element spliced
    (D) For welding flange splice, complete penetration butt welds should be used

9. Pick up the correct statement from the following:
    (A) For steel castings, the minimum tensile strength is 41 kg/mm2 and minimum yield stress is 20.5 kg/mm2
    (B) For mild steel the minimum tensile strength is 44 kg/mm2 and minimum elongation of 23% on a gauge length of 5.65A
    (C) For high tensile steel, the minimum tensile strength is 58 kg/mm2
    (D) All the above

10. The maximum spacing of shear reinforcement should not exceed 0.75 d subject to a minimum of
    (A) 300 mm
    (B) 350 mm
    (C) 400 mm
    (D) 450 mm

11. The effective depth of a shallow beam is the distance between
    (A) Maximum compression and tension fibres
    (B) Neutral axis and maximum compression fibre
    (C) Neutral axis and maximum tension fibre
    (D) Maximum compression fibre and the centroid of the tension reinforcement

12. Minimum diameter of the lateral ties should not be less than
    (A) 4 mm
    (B) 5 mm
    (C) 6 mm
    (D) 10 mm

13. Moist curing of the exposed surfaces of concrete is done at least for
    (A) 3 days
    (B) 5 days
    (C) 7 days
    (D) 14 days

14. To achieve uniform color and consistency of the concrete by using ordinary Portland cement, the mixing time may be
    (A) ½ to 1 minute
    (B) 1 to 1½ minutes
    (C) 1½ to 2 minutes
    (D) 2 to 2½ minutes

15. The minimum pitch i.e., the distance between centers of rivet holes is not less than
    (A) 1.5 times the hole diameter
    (B) 2.0 times the hole diameter
    (C) 2.5 times the hole diameter
    (D) 3.0 times the hole diameter

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