Structural Design Specifications Questions and Answers - Set 01 - ObjectiveBooks
Structural Design Specifications Questions and Answers - Set 01

Structural Design Specifications Questions and Answers - Set 01

Practice Test: Question Set - 01

1. Pick up the incorrect statement from the following:
    (A) The gross section of the web of rolled I-beams is the depth of the beam multiplied by the web thickness
    (B) The gross section of the web of channels is the depth of the web multiplied by its thickness
    (C) The gross section of the web of plate girders is the depth of the web plate multiplied by its thickness
    (D) None of these
2. For heavily reinforced concrete member, the nominal maximum size of the aggregates should be restricted to
    (A) 5 mm less than the minimum clear distance between the main bars
    (B) 5 mm less than the minimum cover to the reinforcement
    (C) Smaller of (a) and (b)
    (D) Greater of (a) and (b)
3. For under water concreting.
    (A) At least 10 percent more cement is required as compared to dry conditions
    (B) The volume of coarse aggregates shall not be less than one and half times and not more than twice that of fine aggregate
    (C) De-watering by pumping is not done or until 24 hours thereafter
    (D) All the above
4. The effective length of lacing is the distance
    (A) Between the inner end rivets of the bar for single lacing
    (B) 0.7 of the distance between the inner end rivets of the bar for double lacing
    (C) Between the inner ends of effective lengths of welds connecting the members
    (D) All the above
5. The effective and actual lengths of a cantilever are same if continuous at the support,
    (A) Unstrained against torsion at the support and free at the end
    (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) None of these
6. In the formula t = √[(3W/fbct) (A² - B₂/4)]
    (A) A and B are the dimensions of the column
    (B) A and B are the dimensions of the base plate
    (C) A is the greater projection of the plate beyond the column
    (D) Both (c) and (d) of above
7. If the specified thickness of a footing is 100 cm, the depth of the form work may be tolerated from
    (A) -2 mm to +2 mm
    (B) -3 mm to +3 mm
    (C) -4 mm to +4 mm
    (D) -5 mm to +5 mm
8. The minimum horizontal distance between two parallel main reinforcing bars, is
    (A) The diameter of the bar if their diameters are same
    (B) The diameter of the longer bar if their diameters are unequal
    (C) 5 mm more than nominal maximum size of the coarse aggregate
    (D) Greatest value of the above
9. Pick up the correct statement for the web stiffeners.
    (A) Vertical stiffeners are spaced at a distance not greater than 1.5 d and not less than 0.33 d
    (B) d is the distance between flange angles or the clear distance between flanges
    (C) For horizontal stiffeners, d is the clear distance between the horizontal stiffener and the tension flange
    (D) All the above
10. The slenderness effect of a wall is considered if the effective height of the wall exceeds the thickness
    (A) 8 times
    (B) 10 times
    (C) 12 times
    (D) 16 times
11. The thickness of the rectangular plate for the cap or base of a solid round steel columns, is calculated from the formula
t = √[(9W/16 fbct) × D/(D -d)] where ‘d’ is
    (A) The reduced diameter of the column
    (B) The dimension of the base
    (C) The diameter of the base
    (D) The diameter of the top
12. The test strength of the sample is taken as the average of the strength of
    (A) 2 specimens
    (B) 3 specimens
    (C) 4 specimens
    (D) 5 specimens
13. For the stability of a structural part, the weight or anchorage should be
    (A) 1.2 times the minimum overturning moment due to dead load
    (B) 1.4 times the minimum overturning moment due to dead load
    (C) Sum of (a) and (b)
    (D) None of these
14. Pick up the correct statement applicable to cased columns.
    (A) Single I-beam or channels back with or without flange plates may be used
    (B) The overall dimensions of the steel section do not exceed 750 × 450 mm over plate if used
    (C) The surface and edges of the steel column should be provided a concrete cover not less than 50 mm
    (D) All the above
15. If the main reinforcement of the slab is parallel to a T-beam, the transverse reinforcement at mid span of the slab is provided at least __________ of main reinforcement.
    (A) 40 %
    (B) 50 %
    (C) 60 %
    (D) 70 %
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