Design of Steel Structures

41. Bearing stiffeners are provided at
(i) The supports
(ii) The mid span
iii) The point of application of concentrated loads
The correct answer is

  1. Only (i)
  2. Both (i) and (ii)
  3. Both (i) and (iii)
  4. (i), (ii) and (iii)

Correct answer: (C)
Both (i) and (iii)

42. Bending compressive and tensile stresses respectively are calculated based on

  1. Net area and gross area
  2. Gross area and net area
  3. Net area in both cases
  4. Gross area in both cases

Correct answer: (B)
Gross area and net area

43. Bolts are most suitable to carry

  1. Shear
  2. Bending
  3. Axial tension
  4. Shear and bending

Correct answer: (C)
Axial tension

44. Bulb angles are used in

  1. Column building
  2. Bridge building
  3. Ship building
  4. Water tank building

Correct answer: (C)
Ship building

45. By providing sufficient edge distance, which of the following failures of riveted joint can be avoided?

  1. Tension failure of the plate
  2. Shear failure of the rivet
  3. Shear failure of the plate
  4. Crushing failure of the rivet

Correct answer: (C)
Shear failure of the plate

46. Cold driven rivets range from

  1. 6 to 10 mm in diameter
  2. 10 to 16 mm in diameter
  3. 12 to 22 mm in diameter
  4. 22 to 32 mm in diameter

Correct answer: (C)
12 to 22 mm in diameter

47. Column footing is provided

  1. To spread the column load over a larger area
  2. To ensure that intensity of bearing pressure between the column footing and soil does not exceed permissible bearing capacity of the soil
  3. To distribute the column load over soil through the column footing
  4. All the above

Correct answer: (D)
All the above

48. Compression force in two end posts, the pin of a rocker bearing in a bridge is designed for

  1. Bearing and shear
  2. Bending and shear
  3. Bearing and bending
  4. Bearing, shear and bending

Correct answer: (D)
Bearing, shear and bending

49. Compression members composed of two channels back-to-back and separated by a small distance are connected together by riveting so that the minimum slenderness ratio of each member between the connections, does not exceed

  1. 40
  2. 50
  3. 60
  4. 70

Correct answer: (A)
40

50. Design of a riveted joint is based on the assumption:

  1. Bending stress in rivets is accounted for
  2. Riveted hole is assumed to be completely filled by the rivet
  3. Stress in the plate in not uniform
  4. Friction between plates is taken into account

Correct answer: (B)
Riveted hole is assumed to be completely filled by the rivet

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