Structural Design Specifications MCQs
Structural Design Specifications MCQs
Answer these 20+ Structural Design Specifications MCQs and assess your grip on the subject of Structural Design Specifications.
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1: The minimum compressive strength on 15 cm cubes of M 30 grade concrete at 7 days, should be a minimum of
A. 7 N/mm2
B. 10 N/mm2
C. 30 N/mm2
D. 20 N/mm2
2: The minimum pitch i.e., the distance between centres of rivet holes is not less than
A. 2.5 times the hole diameter
B. None of these.
C. 2.0 times the hole diameter
D. 1.5 times the hole diameter
E. 3.0 times the hole diameter
3: If the dimensions of a rectangular section of a short column are 15 cm x 20 cm, its unsupported length should be restricted to
A. 11.0 m
B. 10.0 m
C. 12.0 m
D. 9.0 m
4: A continuous beam shall be deemed to be a deep beam if the ratio of its effective span to overall depth, is
A. Less than 2.5
B. Less than 2
C. 2.0
D. 2.5
5: The gap between web plates and flange plates fro fillet welds should not be more than
A. 1.5 mm
B. 0.5 mm
C. 0.75 mm
D. 1.25 mm
E. 1.0 mm
6: Moist curing of the exposed surfaces of concrete is done at least for
A. 14 days
B. 3 days
C. 5 days
D. 7 days
7: Pick up the correct statement regarding columns.
A. The cross sectional area of longitudinal reinforcement, should not be less than 0.8% nor more than 4% of its gross sectional area
B. The minimum of longitudinal bars provided in rectangular and circular columns are 4 and 6 respectively
C. If the effective length of a column is less than three times its lateral dimension, it is generally called a pedestal
D. In helically reinforced column, the minimum number of longitudinal reinforcement should be six
8: The outstand of stiffeners should be (where t is the thickness of flat).
A. 12 t
B. 8 t
C. 10 t
D. 6 t
9: The grade of concrete generally not used in the reinforced concrete, is
A. M 15
B. M 10
C. M 40
D. M 20
10: The over all depth of a solid slab is 20 cm and effective depth is 15 cm. The horizontal distance between parallel main reinforcement should not be more than
A. 30 cm
B. 40 cm
C. 45 cm
D. 60 cm
11: For rolled I-beams and channels, permissible tensile and compressive stresses does not exceed
A. 1650 kg/cm2
B. 1800 kg/cm2
C. 1400 kg/cm2
D. 1500 kg/cm2
12: The slenderness ratio of single angle discontinuous struts conmected by a single rivet or bolt, shall not exceed
A. 180
B. 110
C. 130
D. 150
13: For design of a column the eccentricity of loading shall be taken as the distance from the assumed point of application of the load to the centroid of the column, subject to a minimum of
A. 20 mm
B. 40 mm
C. 10 mm
D. 50 mm
E. 30 mm
14: The area of the concrete in compression plus the area of reinforcement transferred on the basis of modular ratio, is called
A. Cracked section
B. None of these.
C. Equivalent section
D. Transferred section
15: The effective and actual lengths of a cantilever are same if continuous at the support,
A. None of the these.
B. With partial restraint against torsion of the support and free at the end
C. Restrained against torsion at the support and free at the end
D. Unstrained against torsion at the support and free at the end
16: Pick up the correct precaution while spilicing the reinforcing bars
A. These are staggered
B. These are provided away from the sections of maximum stress
C. Not more than half the bars are spliced at a section
D. These are provided if the B.M. is more than 50% of M.R.
E. All these
17: 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. 3.150 m
B. 3.000 m
C. 3.100 m
D. 3.200 m
18: The cover to the main reinforced may be reduced up to one third of the specified cover but not less than
A. 10 mm
B. 15 mm
C. 5 mm
D. 7 mm
19: The maximum compressive strength on 15 cm cubes of M 20 grade concrete at 7 days, should be a minimum of
A. 7 N/mm2
B. 15 N/mm2
C. 20 N/mm2
D. 10 N/mm2
20: Dispersion of load through the flange to web is considered as dispersed uniformly at an angle θ is
A. 10
B. 20
C. 15
D. 25
E. 30
21: Steel is used in construction girders because it is an excellent _____ material.
A. Inelastic
B. Elastic
C. Neither
D. None of these
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