FAQ’s for Structural Design Jobs

/50

1 / 50

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

2 / 50

2. For a compression member with double angle section, which of the following section will give larger value of minimum radius of gyration?

1. equal angles back-to-back

2. unequal legged angles with long legs back-to-back

3. unequal legged angles with short legs back-to-back

4. both b or c

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. In case of plastic design, the calculated maximum shear capacity of a beam as per IS:800 shall be (where, Aw = effective cross-sectional area resisting shear fy = yield stress of the steel)

1. 0.55 Awfy

2. 0.65 Awfy

3. 0.75 Awfy

4. 0.85 Awfy

5 / 50

5. 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

6 / 50

6. The statical 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

7 / 50

7. In case of timber structures, the form factor for solid circular cross-section is taken as

1. 1.18

2. 1.414

3. 1.67

4. 1.81

8 / 50

8. 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

9 / 50

9. 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

10 / 50

10. The capacity of the smallest pressed steel tank is

1. 1000 liters

2. 1650 liters

3. 1950 liters

4. 2450 liters

11 / 50

11. The internal pressure coefficient on walls for buildings with large permeability is taken as

1. ± 0.2

2. ±0.5

3. ± 0.7

4. ± 0.1

12 / 50

12. Rivets connecting flange angles to cover plates in a plate girder are subjected to

1. horizontal shear only

2. vertical load only

3. both a and b

4. none of the above

13 / 50

13. Bearing stiffener in a plate girder is used to

1. transfer the load from the top flange to the bottom one

2. prevent buckling of web

3. decrease the effective depth of web

4. prevent excessive deflection

14 / 50

14. 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

15 / 50

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

1. 0.05

2. 0.1

3. 0.15

4. 0.2

16 / 50

16. 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

17 / 50

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

1. zero

2. 10

3. 100

4. infinity

18 / 50

18. A butt weld is specified by

1. effective throat thickness

2. plate thickness

3. size of weld

4. penetration thickness

19 / 50

19. 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.

20 / 50

20. 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

21 / 50

21. If the thickness of plate to be connected by a rivet is 16mm, then suitable size of rivet as per Unwin’s formula will be

1. 16 mm

2. 20 mm

3. 24 mm

4. 27 mm

22 / 50

22. The difference between gross diameter and nominaldia meter 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

23 / 50

23. The heaviest I-section for same depth is

1. ISMB

2. ISLB

3. ISHB

4. ISWB

24 / 50

24. The minimum number of main steel bars provided in R.C.C.

1. All the above

2. Rectangular columns are 4

3. Circular columns are 6

4. Octagonal columns are 8

25 / 50

25. An under-reinforced section means

1. Steel is provided at the underside only

2. Steel provided is insufficient

3. Steel provided on one face only

4. Steel will yield first

26 / 50

26. The effective width of a column strip of a flat slab, is

1. One-fourth the width of the panel

2. Half the width of the panel

3. Radius of the column

4. Diameter of the column

27 / 50

27. In a simply supported slab, alternate bars are curtailed at

1. 1/4th of the span

2. 1/5th of the span

3. 1/6th of the span

4. 1/7th of the span

28 / 50

28. The minimum thickness of s flat slab is taken

1. L/32 for end panels without drops

2. L/36 for end panels without drops

3. L/36 for interior panels without drops

4. All the above

29 / 50

29. 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

30 / 50

30. The width of the flange of a L-beam, should be less than

1. One-sixth of the effective span

2. Breadth of the rib + four times thickness of the slab

3. Breadth of the rib + half clear distance between ribs

4. Least of the above

31 / 50

31. The maximum ratio of span to depth of a slab simply supported and spanning in one direction, is

1. 35

2. 25

3. 30

4. 20

32 / 50

32. In the displacement method of structural analysis, the basic unknowns are

1. Displacements

2. Force

3. Displacements and forces

4. None of the above

33 / 50

33. Which of the following is not the displacement method?

1. Equilibrium method

2. Column analogy method

3. Moment distribution method

4. Kani’s method

34 / 50

34. When a uniformly distributed load, shorter than the span of the girder, moves from left to right, then the conditions for maximum bending moment at a section is that

1. The head of the load reaches the section

2. The tail of the load reaches the section

3. The load position should be such that the section divides it equally on both sides

4. The load position should be such that the section divides the load in the same ratio as it divides the span

35 / 50

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

1. Slope

2. Curvature

3. Deflection

4. Bending moment

36 / 50

36. A steel rod 1 meter long having square cross section is pulled under a tensile load of 8 tones the extension in the rod was 1 mm only. if E steel=2x106kg/cm2, the side of the rod, is

1. 1 cm

2. 1.5 cm

3. 2 cm

4. 2.5 cm

37 / 50

37. 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

38 / 50

38. 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

39 / 50

39. 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

40 / 50

40. Shell structure does not have any?

1. Bending moment

2. Shear stress

3. Tensile stress

4. Compressive stress

41 / 50

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

1. Ease of construction

2. Economy

3. Speed of construction

4. Large Span lengths

42 / 50

42. One of the criteria for the effective width of flange of T-beam is bf =-+bw+6Df6 in above formula, lo signifies?

1. Effective span of T-beam

2. Distance between points of zero moments in the beam

3. Distance between points of maximum moments in the beam

4. Clear span of the T-beam

43 / 50

43. 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

44 / 50

44. 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

45 / 50

45. 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

46 / 50

46. To minimize the total cost of a roof truss, the ratio of the cost of truss to the cost of purlins shall be

1. 1

2. 2

3. 3

4. 4

47 / 50

47. Normally, the angle of roof truss with asbestos sheets should not be less than

1. 26°/2°

2. 30°

3. 35°

4. 40°

48 / 50

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

1. 121

2. 161

3. 201

4. 251

49 / 50

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

50 / 50

50. Which of the following types of riveted joint is free from bending stresses ?

1. lap joint

2. butt joint with single cover plate

3. butt joint with double cover plates

4. none of the above

Your score is

© 2023 Civil Jobs Training, All rights reserved