Steel Design Sheet 40

1) Question.

The spacing of filler joist centre to centre should not exceed.....the minimum thickness of the structural concrete slab having imposed load up to $2500 N / m^{3}$ .
Answer.
- 1
  
  6 times
- 2
  
  7 times
- 3
  
  8 times
- 4
  
  9 times
Answer: 4

Explanation:
2) Question.

The bending moment for filler joists near the middle of end span is

[where, w= Dead load plus live load per unit length of span, and L= Span, centre to centre of supports]
Answer.
- 1
  
  $+ \frac{w l^{2}}{10}$
- 2
  
  $- \frac{w l^{2}}{10}$
- 3
  
  $+ \frac{w l^{2}}{12}$
- 4
  
  $- \frac{w l^{2}}{12}$
Answer: 1

Explanation:
3) Question.

Horizontal stiffeners, in addition to vertical stiffeners, are provided on the web of a plate girder, when the ratio of clear depth to the thickness of web exceeds
Answer.
- 1
  
  50
- 2
  
  100
- 3
  
  150
- 4
  
  200
Answer: 4

Explanation:
4) Question.

Intermediate vertical stiffeners are provided in plate girders to
Answer.
- 1
  
  eliminate web buckling
- 2
  
  eliminate local buckling
- 3
  
  transfer concentrated loads
- 4
  
  prevent excessive deflection
Answer: 1

Explanation:
5) Question.

At a section along the span of a welded plate girder, where web is spliced, the bending moment is M. If the girder has top flange, web and bottom flange plates of equal area, then share of the bending moment which would be taken by the splice plates would be
Answer.
- 1
  
  M
- 2
  
  M/3
- 3
  
  M/7
- 4
  
  M/13
Answer: 1

Explanation:
6) Question.

The slenderness ratio for the portion of web acting as a column, when the two flanges are restrained against lateral displacement and rotation, is equal to
[h= Clear depth of web between root fillets, and $t_{w}$ = Thickness of web]
Answer.
- 1
  
  $\frac{h}{t_{w}}$
- 2
  
  $\frac{\sqrt{3} h}{t_{w}}$
- 3
  
  $\frac{\sqrt{5} h}{t_{w}}$
- 4
  
  $\frac{\sqrt{6} h}{t_{w}}$
Answer: 2

Explanation:

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