Structural Design Specifications problems
- 1. Pick up the correct statement from the following:
Options- A. The distance between centres of two adjacent rivets in line with the direction of stress shall not exceed 16 t or 200 mm whichever is less in tension members
- B. The distance between the centres of two adjacent rivets in line with the direction of stress shall not exceed 12 t or 203 mm whichever is less in compression members
- C. The minimum pitch of rivets should not be less than 2.5 times the diameter of the rivet hole
- D. The distance between centres of any two consecutive rivets in a line adjacent and parallel to an edge of an outside plate shall hot exceed 100 mm + 4 t or 200 mm whichever is less both in compression and tension
- E. All the above. Discuss
Correct Answer: All the above.
- 2. If the end of a beam of span L carrying a designed load W is partially restrained by a built up wall, it is designed to resist the negative moment at the face of the support, equal to
Options- A.
- B.
- C.
- D.
- E.
Discuss
Correct Answer:
- 3. The permissible bending stresses Pbet for steel slab bases should not exceed
Options- A. 1500 kg/cm2
- B. 1650 kg/cm2
- C. 1800 kg/cm2
- D. 1890 kg/cm2 Discuss
Correct Answer: 1500 kg/cm2
- 4. For achieving suitably a low permeability
Options- A. strong and dense aggregates are used
- B. low water - cement ratio is used
- C. proper curing is done for hydration
- D. proper compaction is done
- E. All the above. Discuss
Correct Answer: All the above.
- 5. If the specified thickness of a footing is 100 cm, the depth of the form work may be tolerated from
Options- A. - 2 mm to + 2 mm
- B. - 3 mm to + 3 mm
- C. - 4 mm to + 4 mm
- D. - 5 mm to + 5 mm Discuss
Correct Answer: - 5 mm to + 5 mm
- 6. The effective depth of a shallow beam is the distance between
Options- A. maximum compression and tension fibres
- B. neutral axis and maximum compression fibre
- C. neutral axis and maximum tension fibre
- D. maximum compression fibre and the centroid of the tension reinforcement
- E. none of these. Discuss
Correct Answer: maximum compression fibre and the centroid of the tension reinforcement
- 7. Moist sand may contain surface water by mass upto
Options- A. 7.5%
- B. 5.0%
- C. 2.5%
- D. 1.25% Discuss
Correct Answer: 2.5%
- 8. The slenderness effect of a wall is considered if the effective height of the wall exceeds the thickness
Options- A. 8 times
- B. 10 times
- C. 12 times
- D. 16 times Discuss
Correct Answer: 12 times
- 9. The spans of filler joists supporting a slab may be considered approximately equal if the longest span does not exceed the shortest span more than
Options- A. 5%
- B. 10%
- C. 15%
- D. 20% Discuss
Correct Answer: 15%
- 10. The anchorage value of standard U-type hook of a reinforcing bar of diameter d in tension, is
Options- A. 4 d
- B. 8 d
- C. 12 d
- D. 16 d
- E. 20 d Discuss
Correct Answer: 16 d
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