Steel Structures MCQ Questions and Answers Quiz

71. Partial safety factors for dead load and live load for limit state of strength are

  1. 1.5 and 1.5
  2. 1.5 and 1.0
  3. 1.5 and 1.05
  4. 1.0 and 1.05

72. Pitch of a roof truss means

  1. Height / Span
  2. Height / 0.5 span
  3. inclination of top chord
  4. none of the above

73. Preferable pitch, if snow load is expected is

  1. 4-Jan
  2. 6-Jan
  3. 8-Jan
  4. 12-Jan

74. Prying forces should be considered in designing

  1. black bolts
  2. turned bolts
  3. all bearing bolts
  4. HSFG bolts

75. Rolled steel tubes are referred by their

  1. outer diameters
  2. inner diameter
  3. average diameter
  4. outer radius

76. Simple post-critical method may be used for finding shear buckling resistance of web in case of plate girder

  1. without vertical stiffeners only
  2. with vertical stiffeners only
  3. with or without vertical stiffeners
  4. with vertical and horizontal stiffeners.

77. Size of rivet hole is kept...................more them size of rivet

  1. 1 to 1.5 mm
  2. 1.5 to 2 mm
  3. 2–3 mm
  4. 3–4.5 mm

78. Slenderness ratio l of a vertical stiffener in a plate girder may be taken as

  1. 0.5 L/r
  2. 0.7 L/r
  3. 0.75 L/r
  4. L/r

79. The A.C. sheets should be fastened to purlins by 8 mm hook bolts at a maximum pitch of

  1. 300 mm
  2. 350 mm
  3. 400 mm
  4. 500 mm

80. The advantage of steel structure is

  1. needs less space
  2. quality is assured
  3. speed of construction is high
  4. all the above
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