Steel Structure Design problems
- 1. 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. Discuss
Correct Answer: all the above.
- 2. A column splice is used to increase
Options- A. length of the column
- B. strength of the column
- C. cross-sectional area of the column
- D. none of these. Discuss
Correct Answer: length of the column
- 3. 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.
Discuss
Correct Answer:
- 4. 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. Discuss
Correct Answer: t < 1/60 th length between inner end rivets
- 5. 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%. Discuss
Correct Answer: 13%
- 6. The maximum permissible slenderness ratio of compression member carrying dead and superimposed load, is
Options- A. 180
- B. 200
- C. 250
- D. 300
- E. 350 Discuss
Correct Answer: 180
- 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. Discuss
Correct Answer: 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.
Discuss
Correct Answer:
- 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. Discuss
Correct Answer: working stress
- 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. Discuss
Correct Answer: 2.0 mm for rivet diameter over 25 mm
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