Steel Structures Multiple Choice Questions and Answers for Practice

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

21. If a fillet weld is to the square edge, the size of weld shall be at least...............less than the edge thickness

1. 1.5 mm
2. 2.0 mm
3. 2.5 mm
4. 3.0 mm

22. If a plate with small hole is kept over another plate and the entire hole is filled with weld material, the weled joint is known as

1. fillet weld
2. butt weld
3. plug weld
4. slot weld

23. If fillet weld is to the rounded toe of thickness t, a rolled steel section, the size of weld generally not to exceed

1. t – 1.5 mm
2. t – 2.0 mm
3. 4/5 t
4. 3/4 t

24. If intermittent butt welding is used, the space between two welds should not be more than..............times the thickness of the thinner member connected.

1. 12
2. 16
3. 20
4. 24

25. If p is the pitch, d is nominal diameter and d¢ bolt hole diameter, minimum pitch is

1. 3d
2. 3d¢
3. 2.5d
4. 2.5d¢

26. If packing plate thickness tpk exceeds 6 mm the shear capacity is to be reduced by a factor

1. 1 – 0.25 t_pk
2. 1 – 0.100 t_pk
3. 1 – 0.0125 t_pk
4. 1 – 0.01 t_pk

27. If span of a roof truss is between 15–30 m, preferable spacing is

1. 3.0 to 4.5 m
2. 4.5 to 6.0 m
3. 6 to 8 m
4. 10–12 m

28. If span of truss is 40 m and above, preferable spacing of trusses is

1. 4.5 to 6 m
2. 6 to 8 m
3. 8 to 10 m
4. 12–15 m

29. If t is the thickness of thinner member and p is the pitch in bolted connection of a compression member, pitch shall not be more than

1. 16t or 200 mm whichever is less
2. 16t or 200 mm whichever is more
3. 12t or 200 mm whichever is less
4. 12t or 180 mm whichever is less

30. If t is the thickness of thinner plate in a bolted connection of tension member, pitch shall not be more than the

1. 16t or 200 mm whichever is less
2. 16t or 200 mm whichever is more
3. 12t or 150 mm whichever is less
4. 12t or 150 mm whichever is more