1. The cross-section of a thermo-mechanically treated (TMT) reinforcing bar has

1. 1. soft ferrite-pearlite throughout

   
   
   

   2. hard martensite throughout

   
   
   

   3. a soft ferrite-pearlite core with a hard martensitic rim

   
   
   

   4. a hard martensitic core with a soft pearlite-bainitic rim

   
   
   

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1. View Hint View Answer Discuss in Forum

   a soft ferrite-pearlite core with a hard martensitic rim

   Correct Option: C

   a soft ferrite-pearlite core with a hard martensitic rim

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2. A steel member ‘M’ has reversal of stress due to live loads, whereas another member ‘N’ has reversal of stress due to wind load. As per IS 800:2007, the maximum slenderness ratio permitted is:

1. 1. less for member ‘M’ than that of member ‘N’

   
   
   

   2. more for member ‘M’ than for member ‘N’

   
   
   

   3. same for both the members

   
   
   

   4. not specified in the Code

   
   
   

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1. View Hint View Answer Discuss in Forum

   As per IS 800: 2007
   m – λ – 180
   m – λ – 350
   ∴ M < N

   Correct Option: A

   As per IS 800: 2007
   m – λ – 180
   m – λ – 350
   ∴ M < N

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3. In a steel plate with bolted connections, the rupture of the net section is a mode of failure under

1. 1. tension

   
   
   

   2. compression

   
   
   

   3. flexure

   
   
   

   4. shear

   
   
   

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1. View Hint View Answer Discuss in Forum

   tension

   Correct Option: A

   tension

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4. The following figure shows a schematic representation of a steel plate girder to be used as a simply supported beam with a concentrated load. For stiffeners, PQ (running along the beam axis) and RS (running between the top and bottom flanges), which of the following pairs of statements will be TRUE?
   

1. 1. (i) RS should be provided under the concentrated load only
      (ii) PQ should be placed in the tension side of the flange

   
   
   

   2. (i) RS helps to prevent local buckling of the web
      (ii) PQ should be placed in the compression side of the flange

   
   
   

   3. (i) RS should be provided at supports
      (ii) PQ should be placed along the neutral axis

   
   
   

   4. (i) RS should be provided away from points of action of concentrated loads
      (ii) PQ should be provided on the compression side of the flange

   
   
   

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1. View Hint View Answer Discuss in Forum

   (i) RS helps to prevent local buckling of the web
   (ii) PQ should be placed in the compression side of the flange

   Correct Option: B

   (i) RS helps to prevent local buckling of the web
   (ii) PQ should be placed in the compression side of the flange

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5. Prying forces are:

1. 1. shearing forces on the bolts because of the joints

   
   
   

   2. tensile forces due to the flexibility of connected parts

   
   
   

   3. bending forces on the bolts because of the joints

   
   
   

   4. forces due to friction between connected parts

   
   
   

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1. View Hint View Answer Discuss in Forum

   Prying forces are tensile force due to flexibility of connected parts.

   Correct Option: B

   Prying forces are tensile force due to flexibility of connected parts.

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