FAQ’s for Structural Design Jobs

/50

1 / 50

1. The minimum thickness of a steel plate, which is directly exposed to weather and is not accessible for cleaning and repainting, should be:

1. 4.5 mm

2. 6 mm

3. 8 mm

4. 10 mm

2 / 50

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

3 / 50

3. The mechanism method of plastic analysis satisfies

1. equilibrium and mechanism conditions

2. equilibrium and plastic moment conditions

3. mechanism and plastic moment conditions

4. equilibrium condition only

4 / 50

4. The mechanism method and the statical method give

1. lower and upper bounds respectively on the strength of structure

2. upper and lower bounds respectively on the strength of structure

3. lower bound on the strength of structure

4. upper bound on the strength of structure

5 / 50

5. 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

6 / 50

6. The centrifugal force due to curvature of track is assumed to act on the bridge at a height of

1. 1.23 m above the rail level

2. 1.50 m above the rail level

3. 1.83 m above the rail level

4. 2.13 m above the rail level

7 / 50

7. If the floor is supported at or near the bottom but top chords of a bridge are not braced, then the bridge is called

1. deck type

2. through type

3. half through type

4. double deck type

8 / 50

8. The minimum thickness of plates in a steel stack should be

1. 4 mm

2. 5 mm

3. 6 mm

4. 8 mm

9 / 50

9. The external wind pressure acting on a roof depends on

1. degree of permeability of roof

2. slope of roof

3. both a and b

4. none of the above

10 / 50

10. 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

11 / 50

11. The maximum spacing of vertical stiffeners is(where d is the distance between flange angles)

1. 1.33 d

2. 1.25 d

3. 1.5 d

4. 1.75 d

12 / 50

12. The web crippling due to excessive bearing stress can be avoided by

1. increasing the web thickness

2. providing suitable stiffeners

3. increasing the length of the bearing plates

4. none of the above

13 / 50

13. 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

14 / 50

14. Shear buckling of web in a plate girder is prevented by using

1. vertical intermediate stiffener

2. horizontal stiffener at neutral axis

3. bearing stiffener

4. none of the above

15 / 50

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

1. 180

2. 200

3. 250

4. 350

16 / 50

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

1. zero

2. 10

3. 100

4. infinity

17 / 50

17. A circular column section is generally not used in actual practice because

1. it is uneconomical

2. it cannot carry the load safely

3. it is difficult to connect beams to the round sections

4. all of the above

18 / 50

18. In the cross-section of a weld, throat is the

1. minimum dimension

2. average dimension

3. maximum dimension

4. none of the above

19 / 50

19. 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

20 / 50

20. In a gusseted base, when the end of the column is machined for complete bearing on the base plate, then the axial load is assumed to be transferred to base plate

1. fully by direct bearing

2. fully through fastenings

3. 50% by direct bearing and 50% through fastenings

4. 75% by direct bearing and 25% through fastenings

21 / 50

21. If the size of a column is reduced above the floor, the main bars of the column, are

1. Continued up

2. Bent inward at the floor level

3. Stopped just below the floor level and separate lap bars provided

4. All the above

22 / 50

22. 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

23 / 50

23. For the design of a simply supported T-beam the ratio of the effective span to the overall depth of the beam is limited to

1. 10

2. 15

3. 20

4. 25

24 / 50

24. By over-reinforcing a beam, the moment of resistance can be increased not more than

1. 0.1

2. 0.15

3. 0.2

4. 0.25

25 / 50

25. The steel generally used in R.C.C. work, is

1. Stainless steel

2. TOR Steel

3. Mild steel3

4. High tension steel

26 / 50

26. On a circular slab of radius, the maximum radial moment at the center if the load on the slab in wkn/m2

1. WR2/16

2. 2WR2/16

3. 3WR2/16

4. 5WR2/16

27 / 50

27. 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

28 / 50

28. The maximum thickness of the cover at the end of a reinforcing bar should not be less than twice the diameter of the bar subject to a minimum of

1. 10 mm

2. 15 mm

3. 20 mm

4. 25 mm

29 / 50

29. Which of the following methods of structural analysis is a force method?

1. Slope deflection method

2. Column analogy method

3. Moment distribution method

4. None of the above

30 / 50

30. For a two-hinged arch, if one of the supports settles down vertically, then the horizontal thrust

1. Is increased

2. Is decreased

3. Remains unchanged

4. Becomes zero

31 / 50

31. Bending moment at any section in a conjugate beam gives in the actual beam

1. Slope

2. Curvature

3. Deflection

4. Bending moment

32 / 50

32. 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

33 / 50

33. The three moments equation is applicable only when

1. The beam is prismatic

2. There is no settlement of supports

3. There is no discontinuity such a hinges within the span

4. The spans are equal

34 / 50

34. The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of ? (Where xu is the depth of natural axis at the limit state of collapse)

1. 0.367 xu

2. 0.416 xu

3. 0.446 xu

4. 0.573 xu

35 / 50

35. If the size of panel in a flat slab is 6m x 6m, then as per Indian standard code, the widths of column strip and middle strip are

1. 3.0 m and 1.5 m

2. 1.5 m and 3.0 m

3. 3.0 m and 3.0 m

4. 1.5 m and 1.5 m

36 / 50

36. A truss containing j joints and m members, will be a simple truss if?

1. m = 2j – 3

2. j = 2m – 3

3. m = 3j – 2

4. j = 3m – 2

37 / 50

37. A lift of weight W is lifted by a rope with an acceleration f. if the area of cross-section of the rope is A, the stress in the rope is?

1. [W(1+f/G)]/A

2. (1-g/f)/A

3. [W(2+f/G)]/A

4. [W(2+g/f)]A

38 / 50

38. 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

39 / 50

39. 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

40 / 50

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

1. Ease of construction

2. Economy

3. Speed of construction

4. Large Span lengths

41 / 50

41. For a simply supported beam of span 15m, the maximum effective depth to satisfy vertical deflection limit should be?

1. 600 mm

2. 750 mm

3. 900 mm

4. More than 1 m

42 / 50

42. For a cantilever of effective depth of 0.5m, the maximum span to satisfy vertical deflection limit is?

1. 4.5 m

2. 5 m

3. 3.5 m

4. 4 m

43 / 50

43. 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

44 / 50

44. The live load for a sloping roof with slope 15°, where access is not provided to roof, is taken as

1. 0.65 kN/m2

2. 0.75 kN/m2

3. 1.35 kN/m2

4. 1.50 kN/m2

45 / 50

45. The maximum permissible span of asbestos cement sheets is

1. 650 mm

2. 810 mm

3. 1250 mm

4. 1680 mm

46 / 50

46. Bearing stiffeners are provided at ( i) the supports, ii) the mid span, iii) the point of application of concentrated loads) The correct answer is

1. only (i)

2. both (i) and (ii)

3. both (i) and (iii)

4. (i), (ii) and (iii)

47 / 50

47. 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

48 / 50

48. Minimum pitch of the rivets shall not be less than where d is gross diameter of rivet

1. 1.5 d

2. 2.0 d

3. 2.5 d

4. 3.0 d

49 / 50

49. When the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which (where, Fa is the load shared by each rivet due to axial load and F mis the shearing load due to moment in any rivet.)

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

50 / 50

50. The difference between gross diameter and nominal diameter for the rivets up to 25 mm diameter is

1. 1.0 mm

2. 1.5 mm

3. 2.0 mm

4. 2.5 mm

Your score is

© 2023 Civil Jobs Training, All rights reserved