Structural Steel Fabrication Interview Questions - Set 16 - ObjectiveBooks

# Practice Test: Question Set - 16

1. When the depth of a plate girder is at least ‘n’ times the depth of vertical leg of the flange angles, the girder is known as deep plate girder, if ‘n’ is
(A) 2
(B) 4
(C) 6
(D) 8

2. Which of the following conditions is to be satisfied both in elastic and plastic analysis?
(A) Equilibrium condition
(B) Yield condition
(C) Plastic moment condition
(D) Mechanism condition

3. If the pitch is 6 cm and rivet value is 4 tonnes, the number of rivets required for a riveted connection carrying an eccentric load of 15 tonnes at a distance of 30 cm from the centre line, is
(A) 6
(B) 8
(C) 10
(D) 15

4. In a grillage footing, the maximum shear force occurs at the
(A) Edge of grillage beam
(B) Centre of base plate
(C) Centre of grillage beam
(D) Centre of base plate

5. The difference between gross diameter and nominal diameter for the rivets up to 25 mm diameter is
(A) 1.0 mm
(B) 1.5 mm
(C) 2.0 mm
(D) 2.5 mm

6. Pick up the correct statement from the following:
(A) Vertical stiffeners may be placed in pairs one on each side of the web
(B) Single vertical stiffeners may be placed alternately on opposite sides of the web
(C) Horizontal stiffeners may be placed alternately on opposite sides of the web
(D) All the above

7. The greatest permissible clear dimension of the web of thickness t in the panel of a plate girder, is restricted to
(A) 180 t
(B) 220 t
(C) 230 t
(D) 270 t

8. The maximum slenderness ratio of a compression member carrying both dead and superimposed load is
(A) 180
(B) 200
(C) 250
(D) 350

9. Pick up the incorrect statement from the following:
(A) The nominal diameter of a rivet is its diameter before driving
(B) The gross diameter of a rivet is the diameter of rivet hole
(C) The gross area of a rivet is the cross-sectional area of the rivet hole
(D) The diameter of a rivet hole is equal to the nominal diameter of the rivet plus 1.5 mm

10. Effective length of a column effectively held in position at both ends and restrained in direction at one end, is
(A) L
(B) 0.67 L
(C) 0.85 L
(D) 1.5 L

11. As per IS : 800, for compression flange, the outstand of flange plates should not exceed
(A) 12 t
(B) 16 t
(C) 20 t
(D) 25 t
Where ‘t’ = thickness of thinnest flange plate

12. If the unsupported length of a stanchion is 4 meters and least radius of gyration of its cross-section is 5, the slenderness ratio of the stanchion, is
(A) 60
(B) 70
(C) 80
(D) 100

13. For a cantilever beam of length ‘L’ continuous at the support and unrestrained against torsion at the support and free at the end, the effective length ‘l’ is equal to
(A) l = L
(B) l = 2L
(C) l = 0.5L
(D) l = 3L

14. Hudson's formula gives the dead weight of a truss bridge as a function of
(A) Bottom chord area
(B) Top chord area
(C) Effective span of bridge
(D) Heaviest axle load of engine

15. Pick up the correct statement from the following:
(A) When the gauge distance is larger than the pitch, the failure of the section may occur in a zig-zag line
(B) When the gauge distance is smaller than the pitch, the failure of the section may occur in a straight right angle section through the centre of rivet holes
(C) When the gauge distance and pitch are both equal, the failure to the section becomes more likely as the diameter of the holes increases
(D) All the above

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