FAQ’s for Structural Design Jobs

/50

1 / 50

1. The allowable shear stress in the web of mild steel beams decreases with (where ‘h’ is height and t is thickness)

1. decrease in h/t ratio

2. increase in h/t ratio

3. decrease in thickness

4. increase in height

2 / 50

2. The connection of intermediate vertical stiffeners to the web, not subjected to external loads, shall be designed for a minimum shear force (kN/m) of (where, t = the web thickness in mm, h = the outstand of stiffener in mm)

1. 75 t2/h

2. 125 t3/h2

3. 125 t2/h

4. 175 t2/h

3 / 50

3. 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

4 / 50

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

5 / 50

5. The moment-curvature relation at a plastic hinge is

1. linear

2. parabolic

3. constant moment for all curvatures

4. constant curvature for all moments

6 / 50

6. 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

7 / 50

7. compression force in two end posts The pin of a rocker bearing in a bridge is designed for

1. bearing and shear

2. bending and shear

3. bearing and bending

4. bearing, shear and bending

8 / 50

8. 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

9 / 50

9. The effect of racking forces is considered in the design of i) lateral braces, ii) chord members. The correct answer is

1. only (i)

2. only (ii)

3. both (i) and (ii)

4. none of the above

10 / 50

10. Which of the following sections should preferably be used at places where torsion occurs?

1. angle section

2. channel section

3. box type section

4. any of the above

11 / 50

11. The number of seismic zones in which the country has been divided are

1. 3

2. 4

3. 5

4. 6

12 / 50

12. The capacity of the smallest pressed steel tank is

1. 1000 liters

2. 1650 liters

3. 1950 liters

4. 2450 liters

13 / 50

13. The risk coefficient k, depends on

1. mean probable design life of structures

2. basic wind speed

3. both a and b

4. none of the above

14 / 50

14. 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

15 / 50

15. Intermediate vertical stiffeners in a plate girder need be provided if the depth of web exceeds 9where t is thickness of web)

1. 501 t

2. 851 t

3. 200 t

4. 2501 t

16 / 50

16. 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

17 / 50

17. The slenderness ratio of lacing bars should not exceed

1. 100

2. 120

3. 145

4. 180

18 / 50

18. The effective length of a battened column is increased by

1. 0.05

2. 0.1

3. 0.15

4. 0.2

19 / 50

19. 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

20 / 50

20. The maximum slenderness ratio of a steel column, the design of which is governed by wind or seismic forces is

1. 150

2. 200

3. 250

4. 350

21 / 50

21. According to IS Specifications, the effective length of a column effectively held in position at both ends and restrained in direction at one end is taken as

1. 0.67 L

2. 0.8 L

3. L

4. 1.5 L

22 / 50

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

1. minimum dimension

2. average dimension

3. maximum dimension

4. none of the above

23 / 50

23. 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

24 / 50

24. 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

25 / 50

25. As compared to field rivets, the shop rivets are

1. stronger

2. weaker

3. equally strong

4. any of the above

26 / 50

26. 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

27 / 50

27. The heaviest I-section for same depth is

1. ISMB

2. ISLB

3. ISHB

4. ISWB

28 / 50

28. 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

29 / 50

29. 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

30 / 50

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

1. Stainless steel

2. TOR Steel

3. Mild steel3

4. High tension steel

31 / 50

31. For normal cases, stiffness of a simply supported beam is satisfied if the ratio of its span to its overall depth does not exceed

1. 10

2. 15

3. 20

4. 25

32 / 50

32. 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

33 / 50

33. 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

34 / 50

34. The nutral axis of a T-beam exists

1. Within the flange

2. At the bottom edge of the slab

3. Below the slab

4. All the above

35 / 50

35. 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

36 / 50

36. 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

37 / 50

37. Which of the following methods of structural analysis is a displacement method?

1. Moment distribution method

2. Column analogy method

3. Three moment equation

4. None of the above

38 / 50

38. 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

39 / 50

39. A single rolling load of 8 kN rolls alone a girder of 15 m span. the absolute maximum bending moment will be

1. 8 kN.m

2. 15 kN.m

3. 30 kN.m

4. 60 kN.m

40 / 50

40. 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

41 / 50

41. In the slope deflection equations, the deformations are considered to be caused by

1. Bending moment

2. Shear force

3. Axial force

4. Both b & c

42 / 50

42. 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

43 / 50

43. 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

44 / 50

44. A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be?

1. 3-Feb

2. 2-Mar

3. 8-May

4. 5-Aug

45 / 50

45. Normally in a truss structure, tension occurs at/for?

1. Joints

2. Base

3. Bottom chords

4. Top chords

46 / 50

46. 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

47 / 50

47. 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

48 / 50

48. For the buildings having a low permeability, the internal wind pressure acting normal to the wall and roof surfaces is taken as (where p is basic wind pressure)

1. zero

2. ±0.2p

3. ± 0.5 p

4. ±0.7p

49 / 50

49. The maximum permissible span of asbestos cement sheets is

1. 650 mm

2. 810 mm

3. 1250 mm

4. 1680 mm

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