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 rivets in tension with counter-sunk heads, the tensile value shall be

1. reduced by 25 %

2. reduced by 33.3%

3. increased by 25 %

4. increased by 33.3 %

3 / 50

3. 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

4 / 50

4. In the virtual work method, the virtual quantity is

1. displacement

2. load

3. slope

4. moment

5 / 50

5. Which of the following conditions is to be satisfied both in elastic and plastic analysis?

1. equilibrium condition

2. yield condition

3. plastic moment condition

4. mechanism condition

6 / 50

6. The ratio of plastic section modulus to elastic section modulus

1. is equal to 1

2. is always less than 1

3. is always greater than 1

4. can be less than 1

7 / 50

7. 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

8 / 50

8. 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

9 / 50

9. 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

10 / 50

10. In case of timber structures, the simple bending formula M = fz may be applied for

1. rectangular beams up to 300 mm depth

2. all rectangular beams

3. solid circular beams only

4. all square cross-section beams

11 / 50

11. 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

12 / 50

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

1. 3

2. 4

3. 5

4. 6

13 / 50

13. 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

14 / 50

14. 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

15 / 50

15. 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

16 / 50

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

17 / 50

17. Lacing bars in a steel column should be designed to resist

1. bending moment due to 2.5% of the column load

2. shear force due to 2.5% of the column load

3. 2.5% of the column load

4. both a and b

18 / 50

18. According to IS:800, in the Merchant Rankine formula the value of imperfection index (n) is

1. 1

2. 1.4

3. 1.8

4. 2

19 / 50

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

20 / 50

20. The effective length of a battened strut effectively held in position at both ends but not restrained in direction is taken as

1. 1.8 L

2. L

3. 1.1 L

4. 1.5 L

21 / 50

21. Diameter of a bolt hole is usually taken as

1. gross diameter of bolt

2. nominal diameter + 1.5 mm

3. nominal diameter + 2.0 mm

4. nominal diameter of bolt

22 / 50

22. 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.

23 / 50

23. Bolts are most suitable to carry

1. shear

2. bending

3. axial tension

4. shear and bending

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. 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

27 / 50

27. 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

28 / 50

28. The heaviest I-section for same depth is

1. ISMB

2. ISLB

3. ISHB

4. ISWB

29 / 50

29. 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

30 / 50

30. The width of the rib of a T-beam , is generally kept between

1. 1/7 to 1/3 of rib depth

2. 1/3 to 1/2 of rib depth

3. 1/2 to 3/4 of rib depth

4. 1/3 to 2/3 of rib depth

31 / 50

31. 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

32 / 50

32. 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

33 / 50

33. If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is

1. Square

2. Rectangular

3. Triangular

4. Trapezoidal

34 / 50

34. 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

35 / 50

35. 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

36 / 50

36. 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

37 / 50

37. 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

38 / 50

38. 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

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. 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

41 / 50

41. 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

42 / 50

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

1. Foundation

2. Beams

3. Slabs

4. Roofs

43 / 50

43. The diameter of base of conical flare of a steel stack is 9where d is the diameter of the cylindrical part)

1. less than d

2. equal to d

3. more than d

4. any of the above

44 / 50

44. Generally, the purlins are placed at the panel points so as to avoid

1. axial force in rafter

2. shear force in rafter

3. deflection of rafter

4. bending moment in rafter

45 / 50

45. The relation between intensity of wind pressure p and velocity of wind V is taken as

1. pa V

2. paV2

3. p a (1/V)

4. paV”2

46 / 50

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

1. 26°/2°

2. 30°

3. 35°

4. 40°

47 / 50

47. The maximum permissible span of asbestos cement sheets is

1. 650 mm

2. 810 mm

3. 1250 mm

4. 1680 mm

48 / 50

48. 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)

49 / 50

49. 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

50 / 50

50. 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

Your score is

© 2023 Civil Jobs Training, All rights reserved