Practice Test: Question Set - 05
1. Column footing is provided
- (A) To
spread the column load over a larger area
- (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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