Steel Structures MCQ Quiz - Multiple Choice Questions & Answers Page 2

11. For connecting 10 to 20 mm plates minimum size of fillet weld is

1. 5 mm
2. 6 mm
3. 8 mm
4. 10 mm

12. For connecting circular tubes in tension, the best connection is by

1. riveting
2. bolting
3. using HSFG bolts
4. welding

13. For HSFG bolts, partial safety factor designed at service load and at ultimate load are respectively

1. 1.10 and 1.25
2. 1.2 and 1.4
3. 1.25 and 1.4
4. 1.25 and 1.5

14. For spacing of trusses 3 to 4 m, purling used are

1. angle iron with outstanding leg at top
2. angle iron with outstanding leg at bottom
3. channel sections
4. I-sections

15. For welded and double laced joints, effective length of lacing is............times the actua1 1ength.

1. 0.5
2. 0.6
3. 0.7
4. 0.85

16. From the consideration of tearing of section strength of an unequal angle section in tension is...............when short leg is connected compared to when its long leg is connected.

1. more
2. less
3. equal
4. may be any one of above depending upon the ratio of length of the legs

17. Gantry girders are designed to resist

1. vertical load from cranes
2. longitudinal and vertical loads
3. lateral, longitudinal and vertical loads
4. lateral and longitudinal loads

18. HSFG bolts transfer load mainly due to

1. friction
2. shearing
3. bearing
4. none of the above

19. If 6 mm A.C. sheets are used for roofing, maximum spacing is

1. 1.4 m
2. 1.6 m
3. 1.8 m
4. 2.0 m

20. If 7 mm thick A.C. sheets are used maximum spacing of J bolts is

1. 1.4 m
2. 1.6 m
3. 1.8 m
4. 2.0 m