To the calculated area of cover plates of a built-up beam, an allowance for rive

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Question
To the calculated area of cover plates of a built-up beam, an allowance for rivet holes to be added, is
Options
A. 10%
B. 13%
C. 15%
D. 18%
E. 20%.

Correct Answer

13%

Steel Structure Design problems

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1. In double lacing, the thickness t of flat lacing is
Options
A. t < 1/40 th length between inner end rivets
B. t < 1/50 th length between inner end rivets
C. t < 1/60 th length between inner end rivets
D. t < 1/70 th length between inner end rivets
E. none of these.

2. If d is the clear depth of a plate girder, t is the minimum required thickness of the web, C is the maximum clear distance between vertical stiffeners, the moment of inertia of a pair of stiffeners about the centre line of the web, is
Options
A.
B.
C.
D.

4. When the upper column does not provide full bearing area over lower column, the column splice is provided with the following assumption
Options
A. bearing plate is assumed as a short beam to transmit the axial load to the lower column section
B. axial load is assumed to be taken by flanges
C. load transmitted from the flanges of upper column and reactions from the flanges of lower columns are equal and form a couple
D. all the above.

7. For a steel member of slenderness ratio 350, the allowable stress is 76 kg/cm² if it is
Options
A. HTW grade of thickness exceeding 32 mm
B. HT grade of thickness exceeding 45 mm
C. HT grade of thickness not exceeding 45 mm
D. All the above.

8. To keep the intensity of bearing pressure between the column base and concrete, compressive throughout the length of the column base, the ratio of the moment M to axial load P should be
Options
A.
B.
C.
D.
E.

9. The permissible stress to which a structural member can be subjected to, is known as
Options
A. bearing stress
B. working stress
C. tensile stress
D. compressive stress
E. all the above.

10. Diameter of a rivet hole is made larger than the diameter of the rivet by
Options
A. 1.0 mm for rivet diameter upto 12 mm
B. 1.5 mm for rivet diameter exceeding 25 mm
C. 2.0 mm for rivet diameter over 25 mm
D. none of these.

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