Multiple Choice Questions on Steel Structure Design - Set 09 - ObjectiveBooks

Multiple Choice Questions on Steel Structure Design - Set 09

Practice Test: Question Set - 09

1. According to IS: 800-1962, the coefficient of expansion of steel per degree centigrade per unit length, is taken as
    (A) 0.000008
    (B) 0.000010
    (C) 0.000012
    (D) 0.000014

2. In case of timber structures, the simple bending formula M = fz may be applied for
    (A) Rectangular beams up to 300 mm depth
    (B) All rectangular beams
    (C) Solid circular beams only
    (D) All square cross-section beams

3. Perforated cover plates are particularly suitable for built up sections consisting of
    (A) Channels placed back to back
    (B) Channels placed toe to toe
    (C) Four angle box section
    (D) All the above

4. If R is the reaction on the bearing plate, the minimum moment of. inertia of the bearing stiffener provided at the support of a plate girder of overall depth D, the maximum thickness of the compression flange T, carrying total load W, is
    (A) (D2/250) × (R/W)
    (B) (D3T/250) × (R/W)
    (C) (DT/250) × (R/W)
    (D) (DT/250) × (W/R)

5. As per IS: 800, in the plastic design, which of the following pairs are correctly matched?
Working Loads Load factor
    (i) Dead load 1.7
    (ii) Dead Load + imposed load 1.7
    (iii) Dead load + load due to wind or 1.3 seismic forces
    (iv) Dead load + imposed load + load 1.7 due to wind or seismic forces
Of these statements
    (A) (i) and (ii) are correct
    (B) (i), (ii) and (iii) are correct
    (C) (ii) and (iii) are correct
    (D) Only (i) is correct

6. Effective length of a column effectively held in position and restrained in direction at both ends, is
    (A) L
    (B) 0.67 L
    (C) 0.85 L
    (D) 1.5 L

7. Pick up the correct statement from the following:
    (A) The ends of a strut, are connected together with two rivets
    (B) The members of strut will have at least two connections spaced equidistant in their length
    (C) The members when separated back-to-back, the connecting rivets should pass through solid washer or packing
    (D) All the above

8. For rivets in tension with countersunk heads, the tensile value shall be
    (A) Reduced by 25 %
    (B) Reduced by 33.3%
    (C) Increased by 25 %
    (D) Increased by 33.3 %

9. Effective length of a column effectively held in position and restrained in direction at one end but neither held in position nor restrained in direction at the other end, is
    (A) 1.5 L
    (B) 0.67 L
    (C) 0.85 L
    (D) 2 L

10. The equivalent axial load may be defined as the load which produces a stress equal to
    (A) Maximum stress produced by the eccentric load
    (B) Maximum stressed fibre
    (C) Bending stress
    (D) None of these

11. If the thickness of thinnest outside plate is 10 mm, then the maximum pitch of rivets in tension will be taken as
    (A) 120 mm
    (B) 160 mm
    (C) 200 mm
    (D) 300 mm

12. The connection of one beam to another beam by means of an angle at the bottom and an angle at the top, is known as
    (A) Unstiffened seated connection
    (B) Stiffened seated connection
    (C) Seated connection
    (D) None of these

13. The channels get twisted symmetrically with regard to its axis
    (A) Parallel to flanges
    (B) Parallel to web
    (C) Perpendicular to flanges
    (D) Perpendicular to web

14. Bolts are most suitable to carry
    (A) Shear
    (B) Bending
    (C) Axial tension
    (D) Shear and bending

15. Rolled steel angle sections are classified as
    (A) Equal angles
    (B) Unequal angles
    (C) Bulb angles
    (D) All the above

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