FAQ’s for Structural Design Jobs

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1. A steel beam supporting loads from the floor slab as well as from wall is termed as

1. stringer beam

2. lintel beam

3. spandrel beam

4. header beam

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2. The shape factor of an isosceles triangle for bending about the axis parallel to the base is:

1. 1.5

2. 1.7

3. 2

4. 2.34

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3. Other conditions being same, the load factor in indeterminate structures is

1. equal to load factor in determinate structures

2. more than the load factor in determinate structures

3. less than the load factor in determinate structures

4. unpredictable

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4. Load factor is

1. always equal to factor of safety

2. always less than factor of safety

3. always greater than factor of safety

4. sometimes greater than factor of safety

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5. The least dimension in case of a circular column of diameter D is taken as

1. 0.5 D

2. 0.68 D

3. 0.88 D

4. D

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6. The bracing provided in the plane of end posts is called

1. sway bracing

2. portal bracing

3. top lateral bracing

4. bottom lateral bracing

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7. If the loaded length of span in meters of a railway steel bridge carrying a single track is 6 m, then impact factor is taken as

1. 0.5 Only

2. 0.1 Only

3. between 0.5 and 1.0

4. 0.2 Only

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8. As per IS: 875, for the purposes of specifying basic wind velocity, the country has been divided into

1. 4 zones

2. 5 zones

3. 6 zones

4. 7 zones

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9. Area of openings for buildings of large permeability is more than

1. 10% of wall area

2. 20% of wall area

3. 30% of wall area

4. 50% of wall area

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10. Minimum pitch provided in riveted steel tanks is (where d is diameter of rivets)

1. 1.5 d

2. 2.0 d

3. 2.5 d

4. 3.0 d

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11. The basic wind speed is specified at a height ‘h’ above mean ground level in an open terrain. The value of ‘h’ is

1. 10 m

2. 20 m

3. 25 m

4. 50 m

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12. The forces acting on the web splice of a plate girder are

1. axial forces

2. shear and axial forces

3. shear and bending forces

4. axial and bending forces

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13. Gantry girders are designed to resist

1. lateral loads

2. longitudinal loads and vertical loads

3. lateral, longitudinal and vertical loads

4. lateral and longitudinal loads

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14. As per IS: 800, for compression flange, the outstand of flange plates should not exceed (where t = thickness of thinnest flange plate)

1. 121

2. 161

3. 201

4. 251

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15. Horizontal stiffener in a plate girder is provided to safe guard against

1. shear buckling of web plate

2. compression buckling of web plate

3. yielding

4. all of the above

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16. Minimum thickness of web in a plate girder, when the plate is accessible and also exposed to weather, is

1. 5 mm

2. 6 mm

3. 8 mm

4. 10 mm

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17. Economical depth of a plate girder corresponds to

1. minimum weight

2. minimum depth

3. maximum weight

4. minimum thickness of web

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18. The use of tie plates in laced columns is

1. prohibited

2. not prohibited

3. permitted at start and end of lacing system only

4. permitted between two parts of the lacing

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19. If the 20 mm rivets are used in lacing bars, then the minimum width of lacing bar should be

1. 40mm

2. 60mm

3. 80mm

4. 100mm

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20. The maximum slenderness ratio of a compression member carrying both dead and superimposed load is

1. 180

2. 200

3. 250

4. 350

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21. The slenderness ratio of a column supported throughout its length by a masonry wall is

1. zero

2. 10

3. 100

4. infinity

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22. For a standard 45° fillet, the ratio of size of fillet to throat thickness is

1. 0.042361111

2. 1 : V2

3. V2 : 1

4. 0.084027778

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23. The effective length of a fillet weld should not be less than

1. two times the weld size

2. four times the weld size

3. six times the weld size

4. weld size

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24. When the bolts are subjected to reversal of stresses, the most suitable type of bolt is

1. black bolt

2. ordinary unfinished bolt

3. turned and fitted bolt

4. high strength bolt

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25. Select the correct statement

1. Material cost of a rivet is higher than that of a bolt.

2. Tensile strength of a bolt is lesser than that of a rivet.

3. Bolts are used as a temporary fastening whereas rivets are used as permanent fastenings.

4. Riveting is less noisy than bolting.

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26. Bolts are most suitable to carry

1. shear

2. bending

3. axial tension

4. shear and bending

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27. Efficiency of a riveted joint, having the minimum pitch as per IS: 800, is

1. 0.4

2. 0.5

3. 0.6

4. 0.7

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28. 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

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29. When the axis of load lies in the plane of rivet group, then the rivets are subjected to

1. only shear stresses

2. only tensile stresses

3. both (a)and (b)

4. none of the above

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30. When the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which

1. is at the maximum distance from CG of the rivet group

2. is at the minimum distance from CG of the rivet group

3. gives the maximum angle between the two forces Fa and Fm

4. gives the minimum angle between the two forces Fa and Fm

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31. If the thickness of thinnest outside plate is 10 mm, then the maximum pitch of rivets in tension will be taken as

1. 120 mm

2. 160 mm

3. 200 mm

4. 300 mm

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32. As the percentage of steel increases

1. Depth of neutral axis decreases

2. Depth of neutral axis increases

3. Lever arm increases

4. Lever arm decreases

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33. According to the steel beam theory of doubly reinforced beams

1. Tension is resisted by tension steel

2. Compression is resisted by compression steel

3. Stress in tension steel equals the stress in compression steel

4. All the above

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34. At-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis

1. Remains within the flange

2. Remains below the slab

3. Coincides the geometrical centre of the beam

4. None of these

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35. Enlarged head of a supporting column of a flat slab is technically known as

1. Supporting end of the column

2. Top of the column

3. Capital

4. Drop panel

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36. The spacing of the main bars in a simply supported slab, should not exceed its effective depth by

1. Three times

2. Four times

3. Five times

4. Six times

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37. The self-weight of the footing, is

1. Not considered for calculating the upward pressure on footing

2. Also considered for calculating the upward pressure on footing

3. Not considered for calculating the area of the footing

4. Both B. and C.

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38. In a pre-stressed member, it is advisable to use

1. Low strength concrete only

2. High strength concrete only

3. Low strength concrete but high tensile steel

4. High strength concrete and high tensile steel

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39. While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of

1. Zero length

2. Infinite length

3. Zero moment of inertia

4. None of the above

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40. In moment distribution method, the sum of distribution factors of all tha members meeting at any joint is always

1. Zero

2. Less than 1

3. 1

4. Greater than 1

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41. If a concrete column 200×200 mm in cross-section is reinforced with four steel bars of 1200 mm2 total cross-sectional area. Calculate the safe load for the column if permissible stress in concrete is 5 N/mm2 and Es is 15Ec?

1. 264 MN

2. 274 MN

3. 284 MN

4. 294 MN

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42. The maximum deflection due to a uniformly distributed load w/unit length over entire span of a cantilever of length l and of flexural rigidly EI, is?

1. wl3/3EI

2. w14/3EI

3. w14/8EI

4. w14/12EI

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43. A simply supported beam carries varying load from zero at one end and W at the other end. If the length of the beam is a, the maximum bending moment will be?

1. wa/27

2. wa2/27

3. w2a

4. wa2

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44. A rod of uniform cross-section A and length L force P. The young’s modules E of the material, is?

1. E=/A. L

2. E=/P. L

3. E=/P. L/A

4. E=/P. A

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45. In frame structure, what transfers the load to columns?

1. Foundation

2. Beams

3. Slabs

4. Roofs

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46. Which of the below is a disadvantage of frame structure?

1. Ease of construction

2. Economy

3. Speed of construction

4. Large Span lengths

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47. The sway bracing is designed to transfer

1. 2Vi % of the top panel wind load to bottom bracing

2. 10% of the top panel wind load to bottom bracing

3. 25% of the top panel wind load to bottom bracing

4. 50% of the top panel wind load to bottom bracing

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48. The range of economical spacing of trusses varies from

1. L/3 to L/5

2. L/4to2L/5

3. L/3 to L/2

4. 2L/5 to 3L/5 where L is span

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49. Intermediate vertical stiffeners in a plate girder need be provided if the depth of web exceeds (where t is thickness of web)

1. 501

2. 851

3. 200 t

4. 2501

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50. Battening is preferable when the( i) column carries axial load only, ii) space between the two main components is not very large, iii) column is eccentrically loaded The correct answer is)

1. only (i)

2. only (iii)

3. (i) and (ii)

4. (ii) and (iii)

Your score is

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