MCQ on Design of Steel Structures - Set 05 - ObjectiveBooks

# Practice Test: Question Set - 05

1. Column footing is provided
(B) To ensure that intensity of bearing pressure between the column footing and soil does not exceed permissible bearing capacity of the soil
(C) To distribute the column load over soil through the column footing
(D) All the above

2. Cold driven rivets range from
(A) 6 to 10 mm in diameter
(B) 10 to 16 mm in diameter
(C) 12 to 22 mm in diameter
(D) 22 to 32 mm in diameter

3. The mechanism method of plastic analysis satisfies
(A) Equilibrium and mechanism conditions
(B) Equilibrium and plastic moment conditions
(C) Mechanism and plastic moment conditions
(D) Equilibrium condition only

4. Rolled steel beams are designated by Indian Standard series and its
(A) Weight per metre and depth of its section
(B) Depth of section and weight per metre
(C) Width of flange and weight per metre
(D) Weight per metre and flange width

5. When plates are exposed to weather, tacking rivets are provided at a pitch in line not exceeding (where t is the thickness of the outside plate).
(A) 8 t
(B) 16 t
(C) 24 t
(D) 32 t

6. For a compression member with double angle section, which of the following section will give larger value of minimum radius of gyration?
(A) Equal angles back to back
(B) Unequal legged angles with long legs back to back
(C) Unequal legged angles with short legs back to back
(D) Both (B) and (C)

7. Pick up the correct statement from the following:
(A) The minimum pitch should not be less than 2.5 times the gross diameter of the river
(B) The minimum pitch should not be less than 12 times the gross diameter of the rivet
(C) The maximum pitch should not exceed 10 times the thickness or 150 mm whichever is less in compression
(D) All the above

8. The gross section of the web of a beam is defined as
(A) Depth of the beam multiplied by its web thickness
(B) Width of the flange multiplied by its web thickness
(C) Sum of the flange width and depth of the beam multiplied by the web thickness
(D) None of these

9. Pitch of tacking rivets, when double angles connected back to back and acting as tension members should not be more than
(A) 500 mm
(B) 600 mm
(C) 1000 mm
(D) 300 mm

10. For a steel grillage footing to support two unequal column loads
(A) Line of action of the resultant of two column loads, is made to coincide with the centre of gravity of the base of the footing
(B) Trapezoidal shape is used for the base footing
(C) Projections of beams on either side in lower tier are such that bending moments under columns are equal
(D) All the above

11. In a tension member if one or more than one rivet holes are off the line, the failure of the member depends upon:
(A) Pitch
(B) Gauge
(C) Diameter of the rivet holes
(D) All the above

12. The heaviest I-section for same depth is
(A) ISMB
(B) ISLB
(C) ISHB
(D) ISWB

13. The effective length of a compression member of length L, 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

14. Efficiency of a riveted joint is defined as the ratio of
(A) Least strength of a riveted joint to the strength of solid plate
(B) Greatest strength of a riveted joint to the strength of solid plate
(C) Least strength of a riveted plate to the greatest strength of the riveted joint
(D) All the above

15. By providing sufficient edge distance, which of the following failures of riveted joint can be avoided?
(A) Tension failure of the plate
(B) Shear failure of the rivet
(C) Shear failure of the plate
(D) Crushing failure of the rivet

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